[news.config] The USENET Backbone

usenet@gatech.edu (06/01/87)

Original-from: Gene Spafford (spaf@gatech.edu)
[Most recent change: 29 May 1987 by spaf]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., seismo--munnari, mnetor--seismo,
uw-beaver--ubc-vision, seismo--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@cbosgd.UUCP".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 1 June 1987 (dotted lines show 
restricted links):

                                      watmath------------------------utgpu
                                         |                              |
                                         |                              |
   ihnp4-----------cbosgd--------------clyde-------------bellcore       |
     :                                   |                   |\         |
     :                                   |                   | \        |
  alberta                            (to rutgers)            | ulysses  |
     |                                                       |          |
     |                                                       |          |
 ubc-vision.......uw-beaver------------------------tektronix |          |
                                                  /        | |          |
                               /------cae780-----/         | |          |
                              /                            | |          |
  kddlab.................hplabs---------------------decwrl | |          |
    :                      :                             | | |          |
    :      /-------------amdahl----(to seismo)           | | |          |
    :     /                                              | | |          |
    :  ames--------------sdcsvax----------------ucbvax   | | |       utzoo
    :   | \                                          \   | | |          |
    :   | (to rutgers)                                \  | | |          |
    :   |                                              \ | | |          |
    :  hao----------------gatech     /------------------decvax          |
    :   | \               | | |     /                     |             |
    :   | (to husc6)      | | |    /                    linus           |
    :   |                 | | |   /                     |   |           |
    :   |           rutgers | mcnc                      |   |           |
    :   |          /      | | |                     philabs |           |
    :   | (to clyde,      | | |                         |   |           |
    :   |   cmcl2, ames)  | | |         (to rutgers)--cmcl2 |           |
    :   |                 | | |                     \   |   |           |
    :   |                 | | | (to amdahl)          \  |   |           |
    :   |                 | | | /                     \ |   |           |
    :  nbires-------------seismo------------------------husc6--(to hao) |
    :                     / : \                                         |
  mcvax------------------/  :  \....................................mnetor
    |                       : 
 (see below)              munnari

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

usenet@gatech.edu (07/01/87)

Original-from: Gene Spafford (spaf@gatech.edu)
[Most recent change: 29 May 1987 by spaf]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., seismo--munnari, mnetor--seismo,
uw-beaver--ubc-vision, seismo--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@cbosgd.UUCP".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 1 July 1987 (dotted lines show 
restricted links):

                                      watmath------------------------utgpu
                                         |                              |
                                         |                              |
   ihnp4-----------cbosgd--------------clyde-------------bellcore       |
     :                                   |                   |\         |
     :                                   |                   | \        |
  alberta                            (to rutgers)            | ulysses  |
     |                                                       |          |
     |                                                       |          |
 ubc-vision.......uw-beaver------------------------tektronix |          |
                                                  /        | |          |
                               /------cae780-----/         | |          |
                              /                            | |          |
  kddlab.................hplabs---------------------decwrl | |          |
    :                      :                             | | |          |
    :      /-------------amdahl----(to seismo)           | | |          |
    :     /                                              | | |          |
    :  ames--------------sdcsvax----------------ucbvax   | | |       utzoo
    :   | \                                          \   | | |          |
    :   | (to rutgers)                                \  | | |          |
    :   |                                              \ | | |          |
    :  hao----------------gatech     /------------------decvax          |
    :   | \               | | |     /                     |             |
    :   | (to husc6)      | | |    /                    linus           |
    :   |                 | | |   /                     |   |           |
    :   |           rutgers | mcnc                      |   |           |
    :   |          /      | | |                     philabs |           |
    :   | (to clyde,      | | |                         |   |           |
    :   |   cmcl2, ames)  | | |         (to rutgers)--cmcl2 |           |
    :   |                 | | |                     \   |   |           |
    :   |                 | | | (to amdahl)          \  |   |           |
    :   |                 | | | /                     \ |   |           |
    :  nbires-------------seismo------------------------husc6--(to hao) |
    :                     / : \                                         |
  mcvax------------------/  :  \....................................mnetor
    |                       : 
 (see below)              munnari

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

spaf@arthur.cs.purdue.edu (Gene Spafford) (09/15/87)

Original-from: Gene Spafford (spaf@purdue.edu)
[Most recent change: 7 September 1987 by spaf@purdue.edu (Gene Spafford)]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., uunet--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@cbosgd.UUCP".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 15 September 1987 (dotted lines show 
restricted links):

                                      watmath------------------------utgpu
                                         |                              |
                                         |                              |
   ihnp4-----------cbosgd--------------clyde-------------bellcore       |
     :                                   |                 / |\         |
     :                               (to rutgers)---------/  | \        |
  alberta                                                    | ulysses  |
     |                (to mit-eddie)                         |          |
     |                       :                               |          |
 ubc-vision..............uw-beaver-----------------tektronix |          |
                                                  /        | |          |
                               /------cae780-----/         | |          |
                              /                            | |          |
  kddlab.................hplabs---------------------decwrl | |          |
    :                     /                              | | |          |
    :   ................./                               | | |          |
    :   :                                                | | |          |
    :   :  sdcsvax------------------------------ucbvax   | | |       utzoo
    :   :    |                                    /  \   | | |          |
    :   :    |   --------------------------------/    \  | | |          |
    :   :    |   |                                     \ | | |          |
    :   :    |   |      mcnc----------------------------decvax          |
    :   :    |   |        | \                             |             |
    :   :    |   |        |  \                          linus           |
    :   :    |   |        | (to rutgers)                |   |           |
    :   :    |   |        |                         philabs |           |
    :   :    |   |        |    (to ames, bellcore,      |   |           |
    :   :    |   |        |     clyde, mcnc)\         cmcl2 |           |
    :   :    |   |        |                  \       /   |  |           |
    :   :    |   /        |                   \     /    |  |           |
    :   :    |  /      gatech----------------rutgers----husc6--(to hao) |
    :   :    | /          |                         \     |             |
    :   :    |/           |                          \    |             |
    :   :   ames---------hao-----(to husc6)           mit-eddie         |
    :   :  /              :                               :             |
    :  amdahl---------\  nbires                       (to uw-beaver)    |
    :                  \  |                                             |
  mcvax-----------------uunet.......................................mnetor
    |                     : 
 (see below)            munnari

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@arthur.cs.purdue.edu.UUCP (10/01/87)

Original-from: Gene Spafford (spaf@purdue.edu)
[Most recent change: 17 September 1987 by biep@cs.vu.nl (J. A. Durieux)]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., uunet--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@cbosgd.UUCP".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 1 October 1987 (dotted lines show 
restricted links):

 ulysses  /-----------------------------------------------------\
    |    /                                                       \
 bellcore       ihnp4.....alberta    (to mit-eddie)               \ (to linus)
  |    |          |          |              :                      \   |
  |  clyde-----cbosgd    ucb-vision.....uw-beaver-----tektronix-----decvax-\
  | /    \                                                |          |  |   \
  | | watmath   (to hao)    munnari  (see below)        cae780       |  |   |
  | |    |            \        :      /                   |          |  |   |
  | |  utgpu          nbires   :   mcvax.....kddlab.....hplabs---decwrl |   |
  | |    |                  \  :  /                       :             /   |
  | |  utzoo-----mnetor......uunet--------------------amdahl  ucbvax---/    |
  | |                                                     |  /     |        |
  | |  /-------------------------------------------------ames-----sdcsvax   |
  | | /                                                   |                 |
  | | |  /---cmcl2-----philabs                            |                 |
  | | | /      |         |                                |                 |
 rutgers-----husc6-----linus---(to decvax)  (to nbires)   |                 |
   | |  \      |  \                             :         |                 |
   | |   \     |   \-------------------\        :         |                 |
   | |    \    |                        \       :         /                 |
   \ \     mit-eddie....(to uw-beaver)   \-----hao-------/                  |
    \ \                                         |                           |
     \ \--------------------------------------gatech----------------------mcnc
      \                                                                   /
       \-----------------------------------------------------------------/

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@arthur.cs.purdue.edu (Gene Spafford) (11/03/87)

Original-from: Gene Spafford (spaf@purdue.edu)
[Most recent change: 8 October 1987 by biep@cs.vu.nl (J. A. Durieux)]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., uunet--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@cbosgd.UUCP".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 2 November 1987 (dotted lines show 
restricted links):

 ulysses  /-----------------------------------------------------\
    |    /                                                       \
 bellcore       ihnp4-----alberta    (to mit-eddie)               \ (to linus)
  |    |          |          |              :                      \   |
  |  clyde-----cbosgd    ucb-vision.....uw-beaver-----tektronix-----decvax-\
  | /    \                                                |          |  |   \
  | | watmath   (to hao)    munnari  (see below)        cae780       |  |   |
  | |    |            \        :      /                   |          |  |   |
  | |  utgpu          nbires   :   mcvax.....kddlab.....hplabs---decwrl |   |
  | |    |                  \  :  /                       :             /   |
  | |  utzoo-----mnetor......uunet--------------------amdahl  ucbvax---/    |
  | |                                                     |  /     |        |
  | |  /-------------------------------------------------ames-----sdcsvax   |
  | | /                                                   |                 |
  | | |  /---cmcl2-----philabs                            |                 |
  | | | /      |         |                                |                 |
 rutgers-----husc6-----linus---(to decvax)  (to nbires)   |                 |
   | |  \      |  \                             :         |                 |
   | |   \     |   \-------------------\        :         |                 |
   | |    \    |                        \       :         /                 |
   \ \     mit-eddie....(to uw-beaver)   \-----hao-------/                  |
    \ \                                         |                           |
     \ \--------------------------------------gatech----------------------mcnc
      \                                                                   /
       \-----------------------------------------------------------------/

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@uther.cs.purdue.edu.UUCP (12/02/87)

Original-from: Gene Spafford (spaf@purdue.edu)
[Most recent change: 16 November 1987 by spaf]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of  (dotted lines show 
restricted links):

 ulysses  /-----------------------------------------------------\
    |    /                                                       \
 bellcore       ihnp4-----alberta    (to mit-eddie)               \ (to linus)
  |    |          |          |              :                      \   |
  |  clyde-----cbosgd    ubc-vision.....uw-beaver-----tektronix-----decvax-\
  | /   |                                                 |          |  |   \
  | |   |                   vuwcomp                       |          |  |   \
  | |   |                      :                          |          |  |   \
  | | watmath   (to hao)    munnari  (see below)        cae780       |  |   |
  | |    |            :        :      /                   |          |  |   |
  | |  utgpu          nbires   :   mcvax.....kddlab.....hplabs---decwrl |   |
  | |    |                  \  :  /                       :             /   |
  | |  utzoo-----mnetor......uunet--------------------amdahl  ucbvax---/    |
  | |                                                     |  /     |        |
  | |  /-------------------------------------------------ames-----sdcsvax   |
  | | /                                                   |                 |
  | | |  /---cmcl2-----philabs                            |                 |
  | | | /      |         |                                |                 |
 rutgers-----husc6-----linus---(to decvax)  (to nbires)   |                 |
   | |  \      |  \                             :         |                 |
   | |   \     |   \-------------------\        :         |                 |
   | |    \    |                        \       :         /                 |
   \ \     mit-eddie....(to uw-beaver)   \-----hao-------/                  |
    \ \                                         |                           |
     \ \--------------------------------------gatech----------------------mcnc
      \                                                                   /
       \-----------------------------------------------------------------/

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@cs.purdue.EDU (Gene Spafford) (01/02/88)

Original-from: Gene Spafford (spaf@purdue.edu)
[Most recent change: 10 December 1987 by biep@cs.vu.nl]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular area (e.g., Australia) and exchanges
news with at least one other backbone site.  This exchange is done
(theoretically) with minimum delay.  Thus, any article submitted to a
backbone site is supposed to propagate to all other backbone sites
within a very short time period. (Under actual conditions, your mileage
may vary.)  Backbone sites are also expected to be running a recent
version of the news software, provide a stable news and mail relay
service, and be maintained by reasonably adept and responsible staff.

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).



Here is the backbone as of 1 January 1988 (dotted lines show 
restricted links):

         /-----------------------------------------------------\
        /                                                       \
bellcore-----ulysses      alberta-----ucb-vision                 \ (linus)
 |    |                     |              :                      \   |
 |  clyde-----cbosgd-----ihnp4         uw-beaver-----tektronix-----decvax-\
 | /   |                                     :           |          |  |   \
 | | watmath-----utgpu  vuwcomp	(europe)  (mit-eddie)  cae780       |  |   |
 | |               |        :       |                    |          |  |   |
 | | (ames)      utzoo   munnari  mcvax ... kddlab ... hplabs---decwrl |   |
 | |   /           |         :   /                       :             |   |
 | |  /          mnetor ... uunet----------------------amdahl          |   |
 | | /                           \                       |             |   |
 | | |  /---cmcl2-----philabs     \---------nbires       |             /   |
 | | | /      |         |                      :         |            /    |
rutgers-----husc6-----linus-----(decvax)       :         |   /----ucbvax   |
  | |  \      |  \                             :         |  /       |      |
  | |   \     |   \---------------------------hao-------ames-----sdcsvax   |
  | |    \    |                                |         |                 |
  \ \     mit-eddie ... (uw-beaver)            |     (rutgers)             |
   \ \                                         |                           |
    \ \--------------------------------------gatech----------------------mcnc
     \                                                                   /
      \-----------------------------------------------------------------/

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

matt@oddjob.UChicago.EDU (Ka Kahula) (01/03/88)

All right, let me put it another way this time.

How do you know that there are no sites other than the ones you list
which exchange all news with two sites that are on the list and which
run recent news software, maintain reliable mailers and are staffed
by adept and responsible people?  I have NEVER seen evidence that you
check for the existence of any.  If, in fact, you don't then your
so-called backbone is nothing but a club and you should not try to
pass it off as anything else.
				Matt Crawford

rcj@moss.ATT.COM (01/03/88)

}How do you know that there are no sites other than the ones you list
}which exchange all news with two sites that are on the list and which
}run recent news software, maintain reliable mailers and are staffed
}by adept and responsible people?  I have NEVER seen evidence that you
}check for the existence of any.  If, in fact, you don't then your
}so-called backbone is nothing but a club and you should not try to
}pass it off as anything else.
}				Matt Crawford

Good point -- I'd be interested to see the response (e-mail) to your article.
The connections part should be relatively trivial to do, given the
map entries, but the reliable admin portion would be a bit tougher.
I'd be willing to make it a rule that if a given site:

	a) is not a leaf node,
	b) exchanges "all" news (i.e., everything but alt) with
	   at least some N (?2?  ?3?) sites, none of whom is a leaf node

that site should be considered a backbone site and be offered a slot on
the backbone mailing list and all those other secret black ritualistic
things.  To get "kicked out of the club" the site would have to drop below
the required N full feeds; whether this was because of money, time, or
fed sites leaving because the feeder had poor administration is really
not an issue.

The MAD Programmer -- 201-386-6409 (Cornet 232)
alias: Curtis Jackson	...![ ihnp4 ulysses cbosgd allegra ]!moss!rcj
			...![ ihnp4 cbosgd akgua watmath  ]!clyde!rcj

heiby@falkor.UUCP (Ron Heiby) (01/03/88)

Ka Kahula (matt@oddjob.UChicago.EDU) writes:
> How do you know that there are no sites other than the ones you list
> which exchange all news ..., run recent news software, maintain reliable
> mailers and are staffed by adept and responsible people?

Matt, you seem to have a slightly distorted view of the universe.

It is well known that there are other sites that meet the "requirements"
for being a backbone site.  However, another requirement does exist.  The
site admin must have some desire to be on the backbone list.  Doing so
gains the person some level of notoriety and opens them up for strange
email coming from obscure corners of the net.  It also tends to add some
amount to that person's work load.  The admin must be interested in
being so identified.  I know that there are sites that have specifically
asked *not* to be listed on the backbone map, even though they do help
out in a number of ways.  If you (or your site admin) thinks that oddjob
"qualifies" and wants to help out, I'm sure that it can be arranged.

By the way, how about a feed once you become a backbone site?  :-)
-- 
Ron Heiby, heiby@mcdchg.UUCP	Moderator: comp.newprod & comp.unix
"Intel architectures build character."

spaf@cs.purdue.EDU (Gene Spafford) (01/03/88)

In article <14191@oddjob.UChicago.EDU> matt@oddjob.UChicago.EDU rants:
>How do you know that there are no sites other than the ones you list
>which exchange all news with two sites that are on the list and which
>run recent news software, maintain reliable mailers and are staffed
>by adept and responsible people?  I have NEVER seen evidence that you
>check for the existence of any.  If, in fact, you don't then your
>so-called backbone is nothing but a club and you should not try to
>pass it off as anything else.

Bad day, Matt?

No, I don't try to make the list exhaustive and neither does anyone
else for one simple reason: if admins don't want their sites listed as
a "backbone" site, they aren't.  If some admin sends mail to the
backbone list and shows they meet all the other requirements *and* they
request to be added to the list, I add them to the list.  Those
requirements include more that just recent software and reliable
mailers, btw.

There have been occasions in the past where we have contacted admins at
a site and noted that they meet the requirements and asked if they want
to be so designated.  Two of the last three I contacted this way
indicated they did *not* want to be listed because of all the abuse
heaped upon site admins listed as "backbone," or because they wanted to
keep their news activity at a low profile, or because they didn't want
one of their news links widely publicized. I'm sorry that you "have
NEVER seen any evidence..." -- I didn't know you were supposed to be
notified whenever anyone sent mail about this.

The "backbone" is not a club in any sense, unless you consider the
Usenet itself a "club." Rather, "backbone" is an informal designation
intended to help other sites improve news propagation, find where to
obtain the latest news software, know where to obtain experienced and
(usually) cooperative assistance, provide reliable "anchor" service for
UUCP mail, and provide a very knowledgeable and experienced group of
news users and admins to discuss items of mutual interest and develop
new software.  Not every site meets those requirements, nor does every
site admin want to be widely known as willing to provide such
assistance to the rest of the Usenet.

I'm not sure what you are upset about, considering that your posting is
the first thing I can recall seeing from you on the subject.
From what you wrote, I suspect that there is something in particular
that prompted your outburst, but I cannot tell from your posting what
it might be.  Whatever it was, I hope this addresses it.  Also, may I
suggest that next time you consider some e-mail or a more restrained
posting to discover the facts before you blast away in public?
-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

rick@pcrat.UUCP (Rick Richardson) (01/03/88)

In article <2844@arthur.cs.purdue.edu> spaf@uther.cs.purdue.edu.UUCP (Gene Spafford) writes:
>In article <14191@oddjob.UChicago.EDU> matt@oddjob.UChicago.EDU rants:
>>How do you know that there are no sites other than the ones you list
>
>Bad day, Matt?
>
No, this is the infamous "Backbone Flame".  Despite what many think,
USENET will survive without the generous censorship of "The Backbone".

Details on request.
-- 
	Rick Richardson, President, PC Research, Inc.
(201) 542-3734 (voice, nights)   OR   (201) 834-1378 (voice, days)
		seismo!uunet!pcrat!rick

rsk@s.cc.purdue.edu (Frozen Wombat) (01/04/88)

In article <443@pcrat.UUCP> rick@pcrat.UUCP (Rick Richardson) writes:
>No, this is the infamous "Backbone Flame".  Despite what many think,
>USENET will survive without the generous censorship of "The Backbone".
>
>seismo!uunet!pcrat!rick

Ah, but you won't be getting much mail without "The Backbone", since your
return route goes through a backbone site. :-)

Seriously, though, this is a really stupid remark.  I've been around Usenet
since about 1980, and have yet to see any evidence of "censorship" on the
part of the backbone.  No, I'm not blind; yes, I have a liberal definition
of censorship; and yes, I'm very well aware of what the backbone does.
Would those or you (like Rick) who find it so distasteful kindly go
somewhere else with your ill-informed speculations?  Sheesh, I don't
understand how you can hold your nose and type at the same time.
-- 
Rich Kulawiec, rsk@s.cc.purdue.edu, s.cc.purdue.edu!rsk

david@ms.uky.edu (David Herron -- Resident E-mail Hack) (01/04/88)

In article <14191@oddjob.UChicago.EDU> matt@oddjob.UChicago.EDU (Ka Kahula) writes:
>All right, let me put it another way this time.
>
>How do you know that there are no sites other than the ones you list
>which exchange all news with two sites that are on the list and which
>run recent news software, maintain reliable mailers and are staffed
>by adept and responsible people?  I have NEVER seen evidence that you
>check for the existence of any.  If, in fact, you don't then your
>so-called backbone is nothing but a club and you should not try to
>pass it off as anything else.
>				Matt Crawford

well yeah ..

yer right.  we exchange full news feeds with 2 backbones (rutgers
and gatech).  We also are the sole news source for most of the
sites in Kentucky (geographical area).  We also are a major news
source for some of the bitnet people.  We also have a reliable
mailer which is staffed by an adept person (me).

yet we're not on the backbone ...

On the other hand we don't pay out many hundreds of dollars per
month on phone bills.  Instead, our backbone links are over the
Internet with NNTP.  (We also exchange news with 2 other sites
with NNTP nrl-cmf and husc6).

I think it's a club ... :-)


-- 
<---- David Herron -- The E-Mail guy            <david@ms.uky.edu>
<---- or:                {rutgers,uunet,cbosgd}!ukma!david, david@UKMA.BITNET
<----
<---- Winter health warning:  Remember, don't eat the yellow snow!

rick@pcrat.UUCP (Rick Richardson) (01/04/88)

In article <1846@s.cc.purdue.edu> rsk@s.cc.purdue.edu.UUCP (Frozen Wombat) writes:
>In article <443@pcrat.UUCP> rick@pcrat.UUCP (Rick Richardson) writes:
>>No, this is the infamous "Backbone Flame".  Despite what many think,
>>USENET will survive without the generous censorship of "The Backbone".
>>
>>seismo!uunet!pcrat!rick
>
>Ah, but you won't be getting much mail without "The Backbone", since your
>return route goes through a backbone site. :-)

UUCP mail is not a part of USENET.  In fact, I'll continue to get mail
no matter what happens to USENET itself.  AT&T provides uucp access
with the "attmail" service.

>Seriously, though, this is a really stupid remark.  I've been around Usenet
>since about 1980, and have yet to see any evidence of "censorship" on the
>part of the backbone.  No, I'm not blind; yes, I have a liberal definition
>of censorship; and yes, I'm very well aware of what the backbone does.

Just try to create a newsgroup without "Backbone" support.  It'll
be deleted.  Yet, ARPA "inet" newsgroups get converted to USENET groups
with nary a vote.  How about net.jokes?  I believe that group
was victimized by censorship at a backbone site around 1982.

>Would those or you (like Rick) who find it so distasteful kindly go
>somewhere else with your ill-informed speculations?

I've already gone somewhere ... to UUNET.  "We don't like your views,
so please leave" - hmm, smacks of censorship to me.
-- 
	Rick Richardson, President, PC Research, Inc.
(201) 542-3734 (voice, nights)   OR   (201) 834-1378 (voice, days)
		seismo!uunet!pcrat!rick

jbuck@epimass.EPI.COM (Joe Buck) (01/05/88)

Matt and Curtis and other curious people:

One way to automatically generate a backbone map is to use a
"transitive closure" algorithm: assume certain "obvious" sites
are on the backbone and then collect paths that lead from one
backbone site to another, add them to the list, and so on.
I wrote some awk scripts to do this, and to do do other operations
on a list of "Path:" headers, and they can be obtained from the
comp.sources.unix archives.  I believe the archive name is
"getpaths".

The result?  The backbone is about twice as big as Spaf's map
indicates it is, pretty much a strict superset.  For the most
part, the "extra" sites don't want to be on the map for political
reasons.  Political reality #1: Usenet is much more dependent on
the Arpa Internet and NNTP than the backbone map would indicate.
-- 
- Joe Buck  {uunet,ucbvax,sun,decwrl,<smart-site>}!epimass.epi.com!jbuck
	    Old internet mailers: jbuck%epimass.epi.com@uunet.uu.net

Argue for your limitations and you get to keep them.   -- Richard Bach

matt@oddjob.UChicago.EDU (Maxwell House Daemon) (01/05/88)

Gene Spafford writes:

) If some admin sends mail to the backbone list and shows they meet
) all the other requirements *and* they request to be added to the
) list, I add them to the list.  Those requirements include more that
) just recent software and reliable mailers, btw.   ...
) 
) I'm not sure what you are upset about, considering that your posting is
) the first thing I can recall seeing from you on the subject.

Typical.  A year or more ago I wrote you mail about this.  You never
replied.  About 5 months ago I posted.  You responded, saying that
you never saw my mail.  (And my mailer works quite well, young man.)
Now you say you saw neither the very old mail nor the very article
you answered!  That kind of makes your following words a little lame:

) Also, may I suggest that next time you consider some e-mail or a
) more restrained posting to discover the facts before you blast away
) in public?

My primary objection is that every month you post a message saying "A
backbone site is one which has properties A, B and C."  Anyone can
see that there are other requirements which are not mentioned.  You
yourself admit that there are.  At the time of my first writing there
was a "backbone" site that clearly didn't meet even the publicly-
stated part of the conditions.  That one is gone now, but there seems
to be another such.  Someone has drawn my attention by mail to
another dubious case.

) ... Rather, "backbone" is an informal designation intended to ...
)  improve news propagation, ...

If that is the goal, then maybe the backbone should be defined as
those sites that appear most often in the "Path" lines.

) ... find where to obtain the latest news software, ...

Oh?  In that case the backbone is simply uunet!  Point everyone there.

) ... know where to obtain experienced and (usually) cooperative
) assistance ...

In that case, list the backbone SAs' phone numbers along with the
drawing!

) provide reliable "anchor" service for UUCP mail, 

Like husc6 that for weeks sent out a ".UUX" on the end of uucp
addresses?  Like rutgers, which prompted one user at ihlpl to write:

	ps. Please be advised that rutgers eats ALL my personal
	correspondents, and if anyone knows how to circumvent that
	machine, I'll be eternally greatful.

?  Or like hao, which turns domainful "!" addresses into mixed "!"
and "@"?


) and provide a very knowledgeable and experienced group of news
) users and admins to discuss items of mutual interest and develop
) new software.

Now we're getting down to the real intent, at least as it is
perceived by the outsiders.  The backbone are those people who want
to make the rules, insofar as there are any at all.


This has gotten more rabid than I intended to get, but I still stand
by the content.
				Matt Crawford

matt@oddjob.UChicago.EDU (Maxwell House Daemon) (01/05/88)

David Herron writes:

) yer right.  we exchange full news feeds with 2 backbones.  We also
) are the sole news source for most of the sites in Kentucky ... yet
) we're not on the backbone ...  Instead, our backbone links are over
) the Internet with NNTP.

I think that nearly the same could be said of "official" backbone
site cmcl2.
				Matt

woods@hao.ucar.edu (Greg Woods) (01/05/88)

In article <14203@oddjob.UChicago.EDU> matt@oddjob.UChicago.EDU (Maxwell House Daemon) writes:
>My primary objection is that every month you post a message saying "A
>backbone site is one which has properties A, B and C."  Anyone can
>see that there are other requirements which are not mentioned.'

  Point taken. Gene should probably add "and have specifically asked to be
included on the list of backbone sites, opening themselves up to both
abuse and questions from the entire net".

>If that is the goal, then maybe the backbone should be defined as
>those sites that appear most often in the "Path" lines.

  As hinted at above, there are many such sites that do not WANT to be
listed as backbone sites. This has to be taken into consideration too.

>In that case, list the backbone SAs' phone numbers along with the
>drawing!

   In my case at least, willingness to respond to E-mail questions at
*my* convenience does NOT imply a willingness to be interrupted on the phone 
whenever any USENET reader wants to ask a question. I have a real job to do. I
answer questions to the best of my ability (and try to make appropriate
references when I don't think I have the answer) WHEN I HAVE THE TIME.
With mail, this is possible; with the phone, it isn't, at least not without
a lot of wasted time. Surely you can see that.
>?  Or like hao, which turns domainful "!" addresses into mixed "!"
>and "@"?

  Being on the backbone requires responsiveness, not perfection. Nor does
the phrase "reasonably adept" imply "knows everything there is to know
about sendmail". For one thing, this is the first I've heard of this.
To paraphrase Gene, you could have sent me mail about this before giving
me a bad name in public. Better still, you could help me fix it. My ego
isn't that big; if someone thinks I'm doing something wrong and can tell
me how (or just help) to fix it, I would be grateful. I would be grateful (and
a LOT more responsive) if you didn't flame my site all over the entire net
when I (and my site) are making every effort we can to keep this net going.

>Now we're getting down to the real intent, at least as it is
>perceived by the outsiders.  The backbone are those people who want
>to make the rules, insofar as there are any at all.

  I'd define it as "in a POSITION to make the rules", not "want" to.
There's a lot of implications in that statement that are just not reality.
None of us "want" to make the rules. We do what we feel we have to do
in order to allow our sites to remain backbones (and therefore 
continue to provide the services we currently do) and to keep the exponentially
growing net from collapsing under its own weight.

  My guess from this is that Matt wants to be a member of the backbone. Fine.
We feed them and so, to my knowledge, do at least two other backbone sites.
oddjob is also a main feed for the Chicago area (ihnp4 doesn't count.. :-)
OK, Matt, if you want to be on the backbone admins list, just ask. Send
mail to backbone@{rutgers,purdue}.edu and petition. But be careful what
you wish for; you may get it.

--Greg

fair@ucbarpa.Berkeley.EDU (Erik E. Fair) (01/05/88)

In the referenced article, jbuck@epimass.EPI.COM (Joe Buck) writes:
	Political reality #1: Usenet is much more dependent on the
	Arpa Internet and NNTP than the backbone map would indicate.

Shhhh! Not so loud! That's supposed to be a SECRET!

	:-)

	Erik E. Fair	ucbvax!fair	fair@ucbarpa.berkeley.edu

P.S.	Wait 'til we release the new version with DECNET support.
	The DEC E-net will never know what hit 'em...

spaf@cs.purdue.EDU (Gene Spafford) (01/05/88)

In article <14203@oddjob.UChicago.EDU> matt@oddjob.UChicago.EDU responds:
>Gene Spafford writes:
>
>)...some lines from my original response...
>
>Typical.  A year or more ago I wrote you mail about this.  You never
>replied.  About 5 months ago I posted.  You responded, saying that
>you never saw my mail.  (And my mailer works quite well, young man.)
>Now you say you saw neither the very old mail nor the very article
>you answered!  That kind of makes your following words a little lame:

My words have no sign of a limp, that I can tell.  :-)

1) I still don't ever recall getting your mail.  Just because you have
a fine, well-working mailer doesn't mean all your mail gets delivered,
especially if it uses uucp.  Then again, if it was as testy as your
postings, I might have simply discarded it -- no one pays me to read
abusive mail.

2) Read my original reply -- I said I do not *recall* any previous posting.
I did not claim you didn't make one....simply that it was not memorable
(to me).  I will probably forget this interchange in a few months, too.
I did not realize I had to archive all of your postings.

3) How do you know I'm a young man?  Does that change how your mailer works?
Or are you trying to imply something about my memory?
 

>My primary objection is that every month you post a message saying "A
>backbone site is one which has properties A, B and C."  Anyone can
>see that there are other requirements which are not mentioned.  You
>yourself admit that there are.  At the time of my first writing there
>was a "backbone" site that clearly didn't meet even the publicly-
>stated part of the conditions.  That one is gone now, but there seems
>to be another such.  Someone has drawn my attention by mail to
>another dubious case.

Well why didn't you say so?  Why don't you send me mail and ask about
the sites in question?  Why don't you come up with some suggestions
about how to reword the backbone article to clear up the
ambiguities you perceive?  I get (quite literally) dozens of
suggestions for changes to the regular postings every month -- and I
consider them all, and incorporate over half.

And "...anyone can see..."?  Really?

>) ... Rather, "backbone" is an informal designation intended to ...
>)  improve news propagation, ...
>
>If that is the goal, then maybe the backbone should be defined as
>those sites that appear most often in the "Path" lines.

Greg Woods answered this -- not every site wants to be listed as a
"backbone" site. In fact, some admins of very well-connected sites
are worried about being so designated because of "political" hassles
that might result. Furthermore, how far back do we check "Path:" lines,
and relative to what sites do we perform the analysis?  If we took
*every* "Path:" line appearing at *every* site over the past 3 years,
and then took the ones most often mentioned, I bet we'd come up
with something very close to the current list.

>) ... find where to obtain the latest news software, ...
>
>Oh?  In that case the backbone is simply uunet!  Point everyone there.

This is a naive enough statement so that instead of belaboring the obvious,
I will just assume you are being sarcastic rather than stupid.  

>) provide reliable "anchor" service for UUCP mail, 
>
>Like husc6 that for weeks sent out a ".UUX" on the end of uucp
>addresses?  Like rutgers, which prompted one user at ihlpl to write:
>
>	ps. Please be advised that rutgers eats ALL my personal
>	correspondents, and if anyone knows how to circumvent that
>	machine, I'll be eternally greatful.
>

Your mailer has never broken?  Great!  Let's have *everybody* route mail
through your machine!

As to the person who had rutgers eat all of his "personal
correspondents," well, I guess that is one way to deal with obnoxious
reporters :-) From my experience, rutgers has a pretty reliable mailer,
and if someone is having problems it might be interesting to find out
how they traced it down to specifically the rutgers system.

Casting aspersions on other sites and admins because of intermittent
mailer failures does *not* refute my original statement:  given a
path relative to one of the backbone machines means that your mail
can be delivered with a much higher probability, especially if
you are dealing with dumb uucp mailers.

>) and provide a very knowledgeable and experienced group of news
>) users and admins to discuss items of mutual interest and develop
>) new software.
>
>Now we're getting down to the real intent, at least as it is
>perceived by the outsiders.  The backbone are those people who want
>to make the rules, insofar as there are any at all.

The folks on the backbone list are perhaps unique in that they really
don't *want* to make any rules for anything outside of our own
machines.  Responsibility for making rules is a burden that none of
them need in addition to everything else they have to do. Instead, most
of them have been with the net for 4, 5, or more years and would like
to see it continue.  (In fact, we have the author of the very first
news system, and at least one of the authors of each of A, B and C news
on the list...it isn't a coincidence that their sites provide
backbone-level support.)

The backbone discusses very little, and what little is discussed in the
mailing list is almost always also discussed in one of the public
groups at the same time.  Basically, the backbone group (and the
moderators group) discusses how they intend to implement things FOR THEIR
OWN SITES, and then integrate public comment and suggestions.  We then
implement whatever we decide AT OUR OWN SITES, suggest it to the
net-at-large, and let others make their own decisions.  If most sites
want to follow the lead of the backbone, because of our experience and
perspective, fine.  If not, also fine.

Why is there a list in the first place?  Because no one person wants
the BURDEN of making decisions, design or administrative, without
feedback from others.  Why not just post for feedback by everyone,
every time?  Because there are too many people on the network who post
without knowing what they're talking about, or who flame without good
reason, or who post without thinking about consequences.  The people on
the backbone list have had to administer major sites, including support
of mail and news, for a long period of time.  Generally, they are not
hotheads, they have extensive practical experience, and they respect
the opinions of their peers.  Further, needs and constraints tend to be
similar amongst many of the backbone sites. Different viewpoints and
backgrounds allow members of the backbone to see solutions others might
not, and cause them to defend different points of view.

I could go on, but once again I am faced with the problem of not
knowing what your complaint is.  Do you not want the members of the
backbone list to discuss things?  Do you want another group of people
added to the list?  Do you want the posting modified?  Or do you just
like to flame?

>This has gotten more rabid than I intended to get, but I still stand
>by the content.
>				Matt Crawford

Well, fine for you.  I'm not interested in debating it further.
However, I will offer the following to anyone interested and who has
managed to read this far:

1) If you think the wording in the regular backbone posting should be
modified, send me mail with your suggestions.  Suggestions for changes
to the other postings will also be cheerfully considered.  It's *your*
network!

2) If you think your site qualifies as a backbone site and you wish to be
added to the map, send me mail and tell me about it.

3) If you think that you belong on the backbone mailing list even if you
don't currently run a backbone site, but you have or believe you have some
special insight you can add, let me know.  If there isn't a flood
of requests, maybe we'll add you to the mailing list; however, we might
also expect you to help beta test software or gateway some mailing lists,
or answer 10 gazillion (identical) questions from novice users.
As Greg put it, be careful what you ask for -- you just might get it.

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

rsk@s.cc.purdue.edu (Frozen Wombat) (01/05/88)

In article <444@pcrat.UUCP> rick@pcrat.UUCP (Rick Richardson) writes:
>Just try to create a newsgroup without "Backbone" support.  It'll
>be deleted.  Yet, ARPA "inet" newsgroups get converted to USENET groups
>with nary a vote.  How about net.jokes?  I believe that group
>was victimized by censorship at a backbone site around 1982.

1. You can create a newsgroup without backbone support if you like; but
many sites, possibly including many backbone sites, will not go along
with you and create it on their machines.  That's their choice, since
it's their machines we're talking about.  In fact, we have about three
dozen newsgroups here that are only locally distributed, since it seems
rather unlikely that the rest of the world would be interested in something
along the lines of "purdue.cc.cs220" (For CS220 students). :-)

You can also create a newsgroup without backbone support by joining the "alt"
distribution, which does not operate under the same contraints/philosophy
as the traditional Usenet backbone.

2. The Internet mailing lists that are now part of the inet distribution
are not "Usenet" newsgroups; true, their names are in the same namespace,
and they are exchanged between some of the sites that exchange the Usenet
groups; but they are part of the "inet" distribution, and every site that
sends/receives them has decided to do so freely.  Please note that (as far
as I am aware) no Usenet-wide newgrp messages were issued for those groups 
(however, there may have been inet-distribution-wide newgrp messages) so
it is not accurate to call them "USENET groups".

3. I would like to know the details of this 1982 incident in net.jokes.
However, I should point out that even if this incident is substantiated,
it seems to me that 1 incident at 1 backbone site involving 1 newsgroup
5 years ago doesn't really conjure up visions of mass censorship.

>>Would those of you (like Rick) who find it so distasteful kindly go
>>somewhere else with your ill-informed speculations?
>
>I've already gone somewhere ... to UUNET.  "We don't like your views,
>so please leave" - hmm, smacks of censorship to me.

Clearly, we have differing views of what censorship is; politely asking
someone to move their uninformed opinions elsewhere is quite different from
taking active steps to ensure that their views are not heard.  The former
is called "exasperation"; the latter, "censorship".  This is a recurring
problem; those folks who seem the most annoyed with "The Evil Backbone
and The Dark Lords of Usenet" always seem to be the most under-informed. 
-- 
Rich Kulawiec, rsk@s.cc.purdue.edu, s.cc.purdue.edu!rsk

jra@jc3b21.UUCP (Jay R. Ashworth) (01/06/88)

In article <14203@oddjob.UChicago.EDU>,
	matt@oddjob.UChicago.EDU (Maxwell House Daemon) says:
| 
| Gene Spafford writes:
| 
| ) If some admin sends mail to the backbone list and shows they meet
| ) all the other requirements *and* they request to be added to the
| ) list, I add them to the list.  Those requirements include more that
| ) just recent software and reliable mailers, btw.   ...
| ) 
| ) I'm not sure what you are upset about, considering that your posting is
| ) the first thing I can recall seeing from you on the subject.
| 
| Typical.  A year or more ago I wrote you mail about this.  You never
| replied.  About 5 months ago I posted.  You responded, saying that
| you never saw my mail.  (And my mailer works quite well, young man.)
| Now you say you saw neither the very old mail nor the very article
| you answered!  That kind of makes your following words a little lame:
| 
| ) Also, may I suggest that next time you consider some e-mail or a
| ) more restrained posting to discover the facts before you blast away
| ) in public?
[ Much other stuff deleted, this is my topic for reply. ]
Matt, I'll do this for Spaf. (If you don't object, Gene?)

Mr. Crawford, do you have *any* vague notion of how much mail this man
gets?  I was lucky enough to work with Spaf a little bit several years
ago, while trying to get a news feed for St. Pete. JC, as well as
Lindsay Cleveland (anybody remember him?), and Bob Kindleberger.  I
probably spent half an hour on the phone with him, and he helped
enormously in getting things rolling.  But do *I* expect him to
remember me?

Come on, Matt, the guy's mailbox is probably as big as your kernel.
Give him a break.  Or maybe, if you *really* want to take on some of
this load yourself, you could get Rick Adams to hire you....?
Well, it was just a thought.
-- jra
-- 
Jay R. Ashworth ---+-- The Great Ashworth & ------------+...!uunet!codas!pdn!
10974 111th St. N. |       Petrillo Production Company  |          jc3b21!jra
Seminole FL 34648  +-- watch for BayLink Public Access -+- UNIX ----+---------
(813) 397-1859 ----+-- Tampa Bay's Smallest Video Production House -+ :-) !$

rob@philabs.Philips.Com (Rob Robertson) (01/06/88)

In article <14204@oddjob.UChicago.EDU> matt rambles:
|)David Herron writes:
|)  our backbone links are over the Internet with NNTP.
|
|I think that nearly the same could be said of "official" backbone
|site cmcl2.

wrong-o buckaroo.  

rob

mangoe@mimsy.UUCP (Charley Wingate) (01/06/88)

It's pretty clear that the trunk system of USENET involves more than the
"backbone".  It's also clear that when the sites of this trunk system decide
to act together, their will will largely prevail (and when they act at odds
with one another there is pure chaos).

It seems to have been admitted that the "Backbone" consists of a subset of
this trunk system which is willing to take on a certain responsibility for
management of the system.  This is, it seems, an unalterable fact of
NETlife; if they don't go along with something, it won't work.  A lot of
the complaining going on about the backbone seems steadfast in its refusal
to admit to this, and thus lacks a certain credibility.  On the other hand,
I don't see why the backbone article cannot be a little better descriptive
of what the backbone is, because people are going to continue to play with
the graph and conclude that the backbone is quite a bit larger than it is
depicted-- and we'll go through this sort of complaint again.

So why can't the backbone article add to the list of qualifications the
willingness to be publicly listed as part of the backbone, with appropriate
explanation?  It would seem to be an easy way to save grief over this issue
in the future.

C. Wingate

jra@jc3b21.UUCP (Jay R. Ashworth) (01/06/88)

In article <14203@oddjob.UChicago.EDU>,
	matt@oddjob.UChicago.EDU (Maxwell House Daemon) says:
| 
| Gene Spafford writes:
| 
| ) If some admin sends mail to the backbone list and shows they meet
| ) all the other requirements *and* they request to be added to the
| ) list, I add them to the list.  Those requirements include more that
| ) just recent software and reliable mailers, btw.   ...
| ) 
| ) I'm not sure what you are upset about, considering that your posting is
| ) the first thing I can recall seeing from you on the subject.
| 
| Typical.  A year or more ago I wrote you mail about this.  You never
| replied.  About 5 months ago I posted.  You responded, saying that
| you never saw my mail.  (And my mailer works quite well, young man.)
| Now you say you saw neither the very old mail nor the very article
| you answered!  That kind of makes your following words a little lame:
| 
| ) Also, may I suggest that next time you consider some e-mail or a
| ) more restrained posting to discover the facts before you blast away
| ) in public?
[ Much other stuff deleted, this is my topic for reply. ]
Matt, I'll do this for Spaf. (If you don't object, Gene?)

Mr. Crawford, do you have *any* vague notion of how much mail this man
gets?  I was lucky enough to work with Spaf a little bit several years
ago, while trying to get a news feed for St. Pete. JC, as well as
Lindsay Cleveland (anybody remember him?), and Bob Kindleberger.  I
probably spent half an hour on the phone with him, and he helped
enormously in getting things rolling.  But do *I* expect him to
remember me?

Come on, Matt, the guy's mailbox is probably as big as your kernel.
Give him a break.  Or maybe, if you *really* want to take on some of
this load yourself, you could get Rick Adams to hire you....?
Well, it was just a thought.
-- jra

-- 
Jay R. Ashworth ---+-- The Great Ashworth & ------------+...!uunet!codas!pdn!
10974 111th St. N. |       Petrillo Production Company  |          jc3b21!jra
Seminole FL 34648  +-- watch for BayLink Public Access -+- UNIX ----+---------
(813) 397-1859 ----+-- Tampa Bay's Smallest Video Production House -+ :-) !$

chip@ateng.UUCP (Chip Salzenberg) (01/07/88)

In article <444@pcrat.UUCP> rick@pcrat (Rick Richardson) writes:
>
>Just try to create a newsgroup without "Backbone" support.  It'll
>be deleted.

Man, haven't you ever heard of alt?  You can create a group there whenever
you please.  Also, see discussion of "anarchy" below.

>How about net.jokes?  I believe that group
>was victimized by censorship at a backbone site around 1982.

It's no use attacking the entire backbone for the actions of one sysadmin
who no doubt acted on his own.

>I've already gone somewhere ... to UUNET.

Uunet _is_ a backbone site.  Rick@uunet is _on_ the backbone mailing list.
In your opinion, what separates purdue from uunet?  I see no difference.

>"We don't like your views, so please leave"
> - hmm, smacks of censorship to me.

That's _not_ what he said.  He said, "If you're not happy with the
situation, you're free to leave." Which you are.  You're also free to stay.

I think that you don't fully understand what anarchy is.  In an anarchy, no
one is in charge.  Whatever you have the power to do, you can do.

The backbone sites have no control over you, and you have no control over
them.  But by virtue of their connectivity, they have power over the flow
of Usenet news.  For example, you can create a new newsgroup, and if it
doesn't flow through the backbone, they won't even see it, much less delete
it.  Of course, if it doesn't go through the backbone, it won't be widely
distributed -- today.  But you can make your own backbone.  Or perhaps you
should use alt groups, since the backbone doesn't mess with alt.

If you want to form an alternative backbone and make your own mailing
list, more power to you! (As a matter of fact, I'd like to be on that list
if you start it.)

If you don't like something, if it's in your power to do something about
it, _no one can stop you_.  That's anarchy.  That is the current state of
the Usenet.  You can work with it, work to change it, or ignore it.  It's
up to you.
-- 
Chip Salzenberg                 UUCP: "{codas,uunet}!ateng!chip"
A T Engineering                 My employer's opinions are a trade secret.
    "Anything that works is better than anything that doesn't."  -- me

matt@oddjob.UChicago.EDU (Maxwell House Daemon) (01/08/88)

In article <246@jc3b21.UUCP> jra@jc3b21.UUCP (Jay R. Ashworth) writes:

) Mr. Crawford, do you have *any* vague notion of how much mail this man
) gets?  ...

If he gets so much mail that he can't read it all or can't remember
it all then let him not say things like "next time send mail instead"!

) Come on, Matt, the guy's mailbox is probably as big as your kernel.

My own inbox today is twice as large as my kernel, and all my saved
mail together is 39 times as large as the kernel.  So what?  I think
Gene speaks for himself better than you do for him.

By the way, among the 16 Megs of mail I found the mail I referred to
in my second inflammatory message on the subject.  At the time it was
written, the backbone maps were posted to mod.map.
================================
To: ihnp4!gatech!spaf
Phone: +1 312 702 8207
Subject: Re: The USENET Backbone (Last changed: 11 January 1987)
Date: Wed, 18 Feb 87 17:08:30 CST

Gene,

Two comments:  Could you wrap the backbone postings into a
simple shar package?  I and, I suppose, others run all mod.map
articles through an unshar program which looks for plausible and
safe shell commands.  I get mail from it complaining about the
"backbone" articles.

The other thing is, what is this "faline" shown as part of the
backbone?  It's not in the map anywhere.  And why is Ulysses a
backbone site when its map entry lists no news neighbors?  I
guess some info is just inconsistent.

Say, if the links ihnp4 -- gargoyle -- oddjob -- hao are all
full-service (except for talk.*), low-delay links, are gargoyle
and oddjob then backbone sites?  Do we get robes for the cabal
meetings?  (:-) I have just created a new link to hao (and am
working on one to the east coast) to reduce Chicago's dependence
on poor old ihnp4.  Together gargoyle and oddjob feed about 8
other Chicago-area sites.
				Matt
================================

lindsay@dscatl.UUCP (Lindsay Cleveland) (01/10/88)

In article <248@jc3b21.UUCP>, jra@jc3b21.UUCP (Jay R. Ashworth) writes
about Gene Spafford:
> Mr. Crawford, do you have *any* vague notion of how much mail this man
> gets?  I was lucky enough to work with Spaf a little bit several years
> ago, while trying to get a news feed for St. Pete. JC, as well as
> Lindsay Cleveland (anybody remember him?), and Bob Kindleberger.  I
> probably spent half an hour on the phone with him, and he helped
> enormously in getting things rolling.  

Thanks Jay...it's always nice to be remembered!

I too was once a backbone administrator (akgua), but fortunately I've
been able to move on to another plane of existence.

I also had many opportunities of working with Gene, (as well as the
honor and pleasure of attending his wedding and he mine).  It still
surprises me that he continues to do all that he does in the face of
the grief he gets.  The job he does is quite valuable to the net, and I
have yet to see anyone else volunteering to take it on.

Cheers,
  Lindsay

Lindsay Cleveland         Digital Systems Co.   Atlanta, Ga
  gatech!dscatl!lindsay     (404) 497-1902
                         (U.S. Mail:  PO Box 1140, Duluth, GA  30136)

mangler@cit-vax.Caltech.Edu (Don Speck) (01/16/88)

In article <19508@clyde.ATT.COM>, rcj@moss.ATT.COM writes:
> I'd be willing to make it a rule that if a given site:
>
>	a) is not a leaf node,
>	b) exchanges "all" news (i.e., everything but alt) with
>	   at least some N (?2?  ?3?) sites, none of whom is a leaf node
>
> that site should be considered a backbone site and be offered a slot on
> the backbone mailing list and all those other secret black ritualistic

When the NNTP-managers mailing list was started, a similar membership
rule was put forward, with N=3.  The purpose of the NNTP-managers list
is to promote efficient news distribution, and on the Internet this
means that news should be exchanged only between sites on adjacent
packet-switch nodes, so that news never traverses a cable twice.

But many of the packet-switch nodes have fewer than 3 trunks connecting
them to other packet switch nodes, and not all of those neighbors will
be running NNTP.  So for most of us, we can either have a voice on the
list, or we can live up to its goals, but we can't do both.

I think backbone sites should be judged by the quality of their service,
not the quantity of their feeds.

Don Speck   speck@vlsi.caltech.edu  {amdahl,ames!elroy}!cit-vax!speck

rsk@s.cc.purdue.edu.UUCP (01/17/88)

In article <5202@cit-vax.Caltech.Edu> mangler@cit-vax.Caltech.Edu (Don Speck) writes:
(discussing the topology of the NNTP news-forwarding service)
>I think backbone sites should be judged by the quality of their service,
>not the quantity of their feeds.

Don, I agree with you, but how can one quantify the quality of the service?
Now, you and I (and perhaps some other people) might agree that if a site
provides services X, Y, and Z in a reliable manner, that the site in question
is of sufficient value to the network to be considered a backbone site; but
what do we do if other people disagree with us (and someone inevitably will)?

I'm not knocking your proposal (at least I'm not trying to); I'm just trying
to figure out how it could be made independent of the opinions of a few people.

Cheers,
Rich

spaf@cs.purdue.EDU (Gene Spafford) (02/04/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu)
[Most recent change: 31 January 1988 by biep@cs.vu.nl (J. A. Durieux)]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).


  /---------------\       /----hao......nbires-------\   munnari...vuwcomp
 /                 \     /      | \                   \   :
/          linus----husc6       |  \    (rutgers)      uunet....mnetor---utzoo
|         / |       /  | \      |   \      |          /   :                |
| (decvax)  |       |  | ukma   |    \---ames----amdahl  mcvax---(europe)  |
|           |       |  |  | \   |         |  \        \    :               |
\      philabs---cmcl2 |  |  \  |         |  ucsd     :  kddlab          utgpu
 \                 \   |  |  gatech       | /         :    :               |
  \                 \  |  |  /  |     ucbvax          :    :  (clyde)---watmath
   \                 \ |  | /   |        |             \   :
 mit-eddie-----------rutgers---mcnc---decvax---decwrl---hplabs
     :              /   |   \        /   |  \              |
 uw-beaver     (ames)   |    bellcore    |   tektronix---cae780
/     :                 |   /    |       |       /
| ubc-vision  cbosgd---clyde  ulysses  (linus)  /     The BACKBONE as of
\      \         |       |                     /      3 February 1988
 \   alberta---ihnp4  (watmath)               /
  \                                          /        --- = full link
   \----------------------------------------/         ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@cs.purdue.EDU (Gene Spafford) (03/02/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu)
[Most recent change: 16 February 1988 by biep@cs.vu.nl (J. A. Durieux)]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).


  /---------------\       /----hao......nbires-------\   munnari...vuwcomp
 /                 \     /      | \                   \   :
/          linus----husc6       |  \    (rutgers)      uunet....mnetor---utzoo
|         / |       /  | \      |   \      |          /   :                |
| (decvax)  |       |  | ukma   |    \---ames----amdahl  mcvax---(europe)  |
|           |       |  |  | \   |         |  \        \    :               |
\      philabs---cmcl2 |  |  \  |         |  ucsd      : kddlab          utgpu
 \                 \   |  |  gatech       | /   |      :   :               |
  \                 \  |  |  /  |     ucbvax (rutgers) :   :  (clyde)---watmath
   \                 \ |  | /   |        |             \   :
 mit-eddie-----------rutgers---mcnc---decvax---decwrl---hplabs
     :              /  |  | \        /   |  \              |
 uw-beaver    (ames)   |  |  bellcore    |   tektronix---cae780
/     :             (ucsd)| /    |       |       /
| ubc-vision  cbosgd---clyde  ulysses  (linus)  /     The BACKBONE as of
\      \         |       |                     /      1 March 1988
 \   alberta---ihnp4  (watmath)               /
  \                                          /        --- = full link
   \----------------------------------------/         ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

bob@tut.cis.ohio-state.edu (Bob Sutterfield) (03/02/88)

Your definition of a backbone site is in terms of news feeds.  If a
backbone site doesn't pass news any more, but performs all the other
functions like reliable mail forwarding, etc.; is it still considered
a backbone site?
-- 
 Bob Sutterfield, Department of Computer and Information Science
 The Ohio State University; 2036 Neil Ave. Columbus OH USA 43210-1277
 bob@cis.ohio-state.edu or ...!cbosgd!osu-cis!bob

matt@oddjob.UChicago.EDU (Ke Kupua) (03/03/88)

Much better.

spaf@cs.purdue.EDU (Gene Spafford) (04/04/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu) & biep@cs.vu.nl (J. A. Durieux)
[Most recent change: 3 April 1988 by spaf@cs.purdue.edu]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-vision, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).


  /---------------\       /----hao......nbires-------\   munnari...vuwcomp
 /                 \     /      | \                   \   :
/          linus----husc6       |  \                   uunet....mnetor---utzoo
|         / |       /  | \      |   \                 /   :                |
| (decvax)  |       |  | ukma   |    \---ames----amdahl  mcvax---(europe)  |
|           |       |  |  | \   |         |  \        \    :               |
\      philabs---cmcl2 |  |  \  |         |  ucsd      : kddlab          utgpu
 \                 \   |  |  gatech       | /   |      :   :               |
  \                 \  |  |  /  |     ucbvax (rutgers) :   :  (clyde)---watmath
   \                 \ |  | /   |        |             \   :
 mit-eddie-----------rutgers---mcnc---decvax---decwrl---hplabs
     :               /   |  \        /   |  \ 
 uw-beaver     (ucsd)    |   bellcore    |   tektronix
/     :                  |  /    |       |       /
| ubc-vision  att-cb---clyde  ulysses  (linus)  /     The BACKBONE as of
\      \         |       |                     /      3 April 1988
 \   alberta---ihnp4  (watmath)               /
  \                                          /        --- = full link
   \----------------------------------------/         ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
NSF/Purdue/U of Florida  Software Engineering Research Center,
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@cs.purdue.EDU (Gene Spafford) (05/09/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu) & biep@cs.vu.nl (J. A. Durieux)
[Most recent change: 8 May 1988 by spaf@cs.purdue.edu]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari, mnetor--uunet,
uw-beaver--ubc-cs, uunet--mcvax) do not carry all newsgroups,
usually meaning "talk" and some "rec" groups, but sometimes also
including "soc", "sci", "news", "misc", and "comp" newsgroups.  The
European component of Usenet receives a limited number of groups from
outside Europe, as well as having a number of active "eunet"
newsgroups, and exchanges all those articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).


  /---------------\           ncar......nbires-------\   munnari...vuwcomp
 /                 \          |   \                   \   :
/          linus----husc6     |    \                   uunet....mnetor---utzoo
|         / |       /  | \    |     \                 /   :                |
| (decvax)  |       |  | ukma |      \---ames----amdahl  mcvax---(europe)  |
|           |       |  |  | \ | (rutgers) |  \        \    :               |
|           |       |  |  | | |        |  |   \        :   :               |
|           |       |  |  | | |        ucsd--ucbvax    :   :               |
\      philabs---cmcl2 |  | | |                  |     : kddlab          utgpu
 \                 \   |  | gatech----purdue---decwrl  :   :               |
  \                 \  |  |  /  |             /      \ :   :  (clyde)---watmath
   \                 \ |  | /   |            /         hplabs
 mit-eddie-----------rutgers---mcnc---decvax                  
     :               /   |  \        /   |  \ 
 uw-beaver     (ucsd)    |   bellcore    |   tektronix
/     :                  |  /    |       |       /
|   ubc-cs  (watmath)--clyde  ulysses  (linus)  /     The BACKBONE as of
\      \                 |                     /      8 May 1988
 \   alberta------------att                   /
  \                                          /        --- = full link
   \----------------------------------------/         ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland

-- 
Gene Spafford
NSF/Purdue/U of Florida  Software Engineering Research Center,
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

spaf@cs.purdue.EDU (Gene Spafford) (05/17/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu) & biep@cs.vu.nl (J. A. Durieux)
[Most recent change: 17 May 1988 by spaf@cs.purdue.edu]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari,ncar--nbires,
uunet--mcvax) do not carry all newsgroups, usually meaning "talk" and
some "rec" groups, but sometimes also including "soc", "sci", "news",
"misc", and "comp" newsgroups.  The European component of Usenet
receives a limited number of groups from outside Europe, as well as
having a number of active "eunet" newsgroups, and exchanges all those
articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).

  /-------------------ohio-state                                   munnari
 /                       |                                            :
/   /---------------\    |      ncar.....................nbires  ..vuwcomp
|  /                 \   |      |   \                        |  /
| /         linus--husc6-+-ukma |    \----ames---amdahl----uunet---attcan--utzoo
| |         / |       |  |  | | |           |\        \      :  \            |
| | (decvax)  |       |  |  | | |           | \        : (mcvax) \           |
| |           |       |  |  | | | (rutgers) |  \       :     :    \          |
| |           |       |  |  | | |        |  |   \      :     :     |         |
| |           |       |  |  | | |        ucsd--ucbvax  :   kddlab  |         |
| \      philabs---cmcl2 |  | | |                  |    \    :     |       utgpu
|  \                 \   |  | gatech---purdue---decwrl--hplabs     |         |
|   \                 \  |  |  /  |            /                   |         |
|    \                 \ |  | /   |           /                    |         |
|  mit-eddie-----------rutgers---mcnc---decvax---------------tektronix       |
|                      /      \        /      \                              |
|                (ucsd)        bellcore       (linus)                        |
|                             /        \                                     |
\                      ulysses       clyde-------------------------------watmath
 \                                     |          
  \-----------------------------------att---alberta----ubc-cs

                                                      --- = full link
                                                      ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland


Site		Who They Are
----		------------
alberta		University of Alberta, Edmonton, Alberta, Canada
amdahl		Amdahl Corp, Sunnyvale CA
ames		NASA Ames Research Center, Moffett Field, CA
att		AT&T "virtual machine", Columbus OH & Naperville, IL.
attcan		AT&T Canada, Toronto, Ontario, Canada
bellcore	Bellcore, Morristown, NJ 
cernvax		CERN Labs, Geneva, Switzerland
clyde		AT&T, NJ somewhere
cmcl2		NY University, New York City, NY
decvax		Digital Equipment Corp, Nashua, NH
decwrl		Digital Equipment Corp, Palo Alto, CA
diku		University of Copenhagen, Copenhagen, Denmark
enea		ENEA DATA Svenska AB, Taeby, Sweden
gatech		Georgia Institute of Technology, Atlanta, GA
hafro		Marine Research Institute, Reykjavik, Iceland
hplabs		HP Labs, Palo Alto, CA
husc6		Harvard University, Cambridge, MA
i2unix		University of Genova, Genova, Italy
inria		INRIA, Rocquencourt, Le Chesnay, France
kddlab		KDD International T&T Co., Tokyo, Japan
linus		Mitre Corporation, Bedford, MA
mcnc		Microelectronics Center of NC, Research Triangle Park, NC
mcvax		Centrum voor Wiskunde en Informatica, Amsterdam, Netherlands
mit-eddie	Massachusetts Institute of Technology, Cambridge, MA
munnari		University of Melbourne, Parkville, Victoria, Australia
nbires		NBI Inc., Boulder CO
ncar		National Center for Atmospheric Research, Boulder, CO
ohio-state	Ohio State University, Columbus, OH
philabs		Philips Laboratories, Briarcliff Manor, NY
prlb2		Philips Laboratory, Brussels, Belgium
purdue		Purdue University, W. Lafayette, IN
rutgers		Rutgers University, Piscataway, NJ
tektronix	Tektronix, Inc., Beaverton, OR
tut		Tampere University of Technology, Tampere, Finland
tuvie		TU Wein, EDV-Zentrum/PRA, Wein, Austria
ubc-cs		University of British Columbia, Vancouver, BC
ucbvax		University of CA at Berkeley, Berkeley, CA
ucsd		University of CA at San Diego, La Jolla, CA
ukc		University of Kent, Canterbury, Kent, UK
ukma		University of Kentucky, Lexington, KY
ulysses		AT&T Bell Labs, ??, NJ
unido		University of Dortmund, Dortmund, W. Germany
utgpu		University of Toronto, Toronto, Ontario, Canada
utzoo		University of Toronto, Toronto, Ontario, Canada
uunet		UUNET Communications, Inc., Fairfax, VA
vuwcomp		Victoria University of Wellington, Wellington, New Zealand
watmath		University of Waterloo, Waterloo, Ontario, Canada
-- 
Gene Spafford
NSF/Purdue/U of Florida  Software Engineering Research Center,
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

roy@phri.UUCP (Roy Smith) (05/25/88)

spaf@cs.purdue.EDU (Gene Spafford) writes:

>            husc6
>              |              [If condensing somebody's words is paraphrasing,
>  philabs---cmcl2            does this constitute paragraphing?]
>              \
>             rutgers

	Our main feed is cmcl2.  I did some stats on the paths of the
articles we had laying around in our /usr/spool/news.  Out of 14007 files
(not articles; no attempt was made to only count cross-posted articles
once) I got 13834 paths coming directly from cmcl2.  Of those paths, here's
the breakdown by third site:

8006 nrl-cmf	
4148 husc6	
 559 brl-adm	
 553 rutgers	
 274 beta	
 262 yale	
  11 arizona	
   5 vx2	
   5 acf8	
   4 acf5	
   2 esquire	
   2 acf3	
   1 polyof	
   1 kaplan	
   1 acf2	

	While I'm willing to believe that the majority of the traffic over
the philabs link might be in cmcl2->philabs direction for some reason, I
find it amazing that not a single article came the other way.  Also, it
seems that the vast majority of the articles reaching cmcl2 come from
nrl-cmf, a link which doesn't show up at all.

	OK, I can understand that maybe nrl-cmf doesn't want to be listed
in the backbone map.  But, when two of the three official backbone links
only supply a total of 4% of the incoming news flow, and all three only add
up to about 30%, the only assumption I can come to is that something is
wrong.  If my observations for my local bit of the net hold true all over
then I must conclude that the backbone map, while pretty to look at, really
isn't worth much.

	It would be interesting if some other folks in different parts of
the net ran the same kind of stats (doesn't take much more than some egreps,
seds, sorts, and uniq's, and a bunch of CPU time) and posted the results.
-- 
Roy Smith, System Administrator
Public Health Research Institute
455 First Avenue, New York, NY 10016
{allegra,philabs,cmcl2,rutgers}!phri!roy -or- phri!roy@uunet.uu.net

reid@decwrl.dec.com (Brian Reid) (05/25/88)

In article <3283@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
>      If my observations for my local bit of the net hold true all over
>then I must conclude that the backbone map, while pretty to look at, really
>isn't worth much.

I have a program that looks around a spooling directory and makes a
PostScript map showing how the news got to your site, with the widths of the
lines corresponding to the amount of that traffic.

I have not yet found a site whose news depends on backbone-to-backbone
communication. The vast majority of the network traffic is carried by
non-backbone sites. There are some places that are dependent on a single
backbone site to feed the neighborhood, but in general the network traffic
does not get carried over "backbone links".

Brian

rsalz@bbn.com (Rich Salz) (05/25/88)

In news.misc (<3283@phri.UUCP>), roy@phri.UUCP (Roy Smith) writes:
>Summary: Many links are bogus
	...
>	It would be interesting if some other folks in different parts of
>the net ran the same kind of stats (doesn't take much more than some egreps,
>seds, sorts, and uniq's, and a bunch of CPU time) and posted the results.

From Volume 6, back when we called it "mod.sources" ...

(N.B.:  Brian Reid believes most Usenet transmission is no longer being done
by "backbone" sites.  I believe most transmission is being done by NNTP
and the pay-as-you-go UUNET.)

(N.B.:  I believe that most Usenet articles are now being 
/* Written  3:39 pm  Jun 19, 1986
    by sources-request@mirror.UUCP
    in mirror:mod.sources */

Subject: v06i009:  Tools for analyzing netnews paths
Submitted by: talcott!seismo!epiwrl!epimass!jbuck
Mod.sources: Volume 6, Issue 9
Archive-name: getpaths

[ I had to reformat the AWK script in histog, strangely enough;
  otherwise AWK crashed.  My version is in the file histog.mod
	--r$ ]

# This is a shell archive.  Remove anything before this line,
# then unpack it by saving it in a file and typing "sh file".
# Contents:  6sites README backbone-list closure getopt.c getpaths.1 getpaths.c
#	histog histog.mod hostcount makefile makefile.42 makefile.sysv
#	makefile.v7 oscantree.c scantree.c threelink twolink
 
echo x - 6sites
sed 's/^XX//' > "6sites" <<'@//E*O*F 6sites//'
XXBACKBONE!decvax!seismo!ihnp4!tektronix!sdcrdcf!decwrl
@//E*O*F 6sites//
chmod u=rw,g=rw,o=rw 6sites
 
echo x - README
sed 's/^XX//' > "README" <<'@//E*O*F README//'
XX		A Collection of Usenet path-counting tools
XX		Joseph T. Buck - Entropic Processing, Inc.

XXThis is a set of tools for computing statistics on the Usenet paths
XXon your machine.

XXThe program 'getpaths' gathers paths from your news spool, taking cross
XXpostings into account (each path appears in the output once).
XXSee the man page supplied.

XXThere are three makefiles provided; I hope getpaths can be made to
XXrun on anything.  Use makefile.42 for 4.2bsd or 4.3bsd; makefile.sysv
XXfor System III or System V; use makefile.v7 for Version 7 or 4.1bsd.

XXIf you have trouble, there are three questions you have to answer:

XX	1) Do you have the 4.2 directory access library?  If so, use
XX	   scantree.c, otherwise use oscantree.c.

XX	2) v7 and bsd systems have functions "index" and "rindex".
XX	   SysIII and SysV changed the names to strchr and strrchr,
XX	   for no good reason.  See the definition of CFLAGS in
XX	   makefile.sysv.

XX	3) Do you have getopt? (SysIII,V do, bsd, v7 don't).  I'm
XX	   including Henry Spencer's public domain version, since
XX	   it's short and valuable and Berkeley folks can't run the
XX	   program without it.

XXYou may find the scantree functions useful in other programs.  You're
XXwelcome to them, but leave my name in, please.

XXWith no options, getpaths prints the paths in every article on the standard
XXoutput.  If you expire news after one week, this will result in about 300 Kbytes
XXof output.  To restrict yourself to a subtree, you may give an option, which
XXis a pathname that uses /usr/spool/news as a base.

XX	getpaths mod
XX	getpaths net/politics

XXOnce you've used getpaths to gather some paths, you can use the shell scripts
XXto compute some statistics on them:

XXhistog -
XX	Computes the average path length and prints a histogram.
XXhostcount -
XX	Counts hostnames that occur anywhere in a path and prints them
XX	in declining order of frequency.
XXtwolink -
XX	Prints connected pairs of sites in declining order of frequency.
XX	I used twolink to prepare my most recent map.
XXthreelink -
XX	Prints connected triplets of sites in declining order of frequency.

XXFinally, there is "closure", which will give "awk" a good workout on your
XXsystem.  It is an automated version of the procedure that I used to build
XXan extended backbone map.

XXclosure takes three arguments.  The first argument is the name of a
XXfile containing the "core" sites you wish to start with (you can
XXthink of these as "backbone" sites, but I'm not claiming to define what
XX"backbone" really means).

XXThe file must be in a somewhat peculiar format; each line must begin
XXwith the word BACKBONE (in caps), followed by the site names,
XXseparated by !  marks.  For example, if you want to start with hosts
XXalpha, beta, and gamma, the backbone file could be 

XXBACKBONE!alpha!beta!gamma

XXor

XXBACKBONE!alpha
XXBACKBONE!beta
XXBACKBONE!gamma

XXYes, it's ugly.

XXThe second argument is the name of the file containing a list of paths
XX(as output by getpaths, perhaps).  Finally, the third argument, an
XXinteger, is a threshold.

XXclosure searches the paths file for chains of paths that connect two
XX"core" sites; a chain is disregarded unless it occurs at least
XX"threshold" times, where "threshold" is the third argument.  Every
XXsite in each such chain is added to the "core".  This is repeated
XXuntil no more sites can be added to the "core".  A report of each
XXiteration and what paths are added to the core is printed on the
XXstandard output.

XXI've supplied two "initial cores" you can use; "6sites" includes
XXihnp4, seismo, decvax, decwrl, tektronix, and sdcrdcf, and
XX"backbone-list" contains all sites on Gene Spafford's backbone map.

XXTry the commands

XXgetpaths net > net.paths
XXclosure 6sites net.paths 20

XXor

XXclosure backbone-list net.paths 20

XXI'm interested in seeing the results for sites far from the SF Bay
XXArea.  You can write me at

XX		oliveb-\
XX			\
XX	ihnp4---pesnta--epimass!jbuck
XX		/
XX	hplabs-/
@//E*O*F README//
chmod u=rw,g=rw,o=rw README
 
echo x - backbone-list
sed 's/^XX//' > "backbone-list" <<'@//E*O*F backbone-list//'
XXBACKBONE!cbosgd!clyde!watmath!utzoo
XXBACKBONE!ihnp4!cuae2!alberta!ubc-vision!burl!ulysses!bellcore
XXBACKBONE!uw-beaver!tektronix!decvax!linus
XXBACKBONE!qantel!hplabs!oliveb!glacier!decwrl
XXBACKBONE!sdcrdcf!hao!sdcsvax!drillsys!gatech!akgua!mcnc!philabs
XXBACKBONE!lll-lcc!lll-crg!cmcl2!seismo
@//E*O*F backbone-list//
chmod u=rw,g=rw,o=rw backbone-list
 
echo x - closure
sed 's/^XX//' > "closure" <<'@//E*O*F closure//'
XX#! /bin/sh
XX# closure: Joseph T. Buck, Entropic Processing, Inc.
XX# Usage: closure startfile paths thresh
XX# This rather awk-ward script builds a "transitive closure" of a backbone.
XXif test $# != 3
XXthen echo Usage: $0 backbone-list paths threshold >&2; exit 1
XXfi
XX# The file /tmp/$$c contains the current backbone list; /tmp/$$a contains
XX# The latest set of additions.
XXcp $1 /tmp/$$c
XXecho "------ Original backbone: ------"
XXawk -F! '{ for (i=1; i<=NF; i++) if ($i != "BACKBONE") printf ("%s ",$i); }
XXEND { printf ("\n");}' /tmp/$$c
XXi=1
XXwhile true
XXdo
XX   awk -F! '{
XX    if ($1 == "BACKBONE") {
XX	for (i = 2; i <= NF; i++)
XX	    backbone[$i] = 1;
XX    }
XX    else {
XX	i = 1;
XX	while (i <= NF && !backbone[$i])
XX	    i++;
XX	if (i > NF)
XX	    next;
XX	while (1) {
XX	    while (i <= NF && backbone[$i])
XX		i++;
XX	    if (i > NF)
XX		break;
XX	    first = i - 1;
XX	    while (i <= NF && !backbone[$i])
XX		i++;
XX	    if (i > NF)
XX		break;
XX	    for (j = first; j < i; j++)
XX		printf ("%s!", $j);
XX	    printf ("%s\n", $i);
XX	}
XX    }
XX}' /tmp/$$c $2 | sort | uniq -c |\
XX   awk '{ if ($1 >= thr) printf("BACKBONE!%s\n", $2); }' thr=$3 - > /tmp/$$a
XX   if test ! -s /tmp/$$a
XX     then echo "------ Final backbone: ------"
XX	  awk -F! '{for (i=2; i<NF; i++) print $i}' /tmp/$$c | sort -u
XX	  rm /tmp/$$c /tmp/$$a
XX	  exit 0
XX   fi
XX   echo "------ Pass $i: add the following: ------"
XX   awk -F! '{ for (i=2; i<NF; i++) printf("%s!", $i); printf("%s\n", $NF);}' /tmp/$$a
XX   cat /tmp/$$a >> /tmp/$$c
XX   i=`expr $i + 1`
XXdone

@//E*O*F closure//
chmod u=rwx,g=rwx,o=rwx closure
 
echo x - getopt.c
sed 's/^XX//' > "getopt.c" <<'@//E*O*F getopt.c//'
XX/*
XX * getopt - get option letter from argv
XX * by Henry Spencer
XX * posted to Usenet net.sources list
XX */
XX#include <stdio.h>

XXchar	*optarg;	/* Global argument pointer. */
XXint	optind = 0;	/* Global argv index. */

XXstatic char	*scan = NULL;	/* Private scan pointer. */

XXextern char	*index();

XXint
XXgetopt (argc, argv, optstring)
XXint     argc;
XXchar   *argv[];
XXchar   *optstring;
XX{
XX    register char   c;
XX    register char  *place;

XX    optarg = NULL;

XX    if (scan == NULL || *scan == '\0') {
XX	if (optind == 0)
XX	    optind++;

XX	if (optind >= argc || argv[optind][0] != '-' || argv[optind][1] == '\0')
XX	    return (EOF);
XX	if (strcmp (argv[optind], "--") == 0) {
XX	    optind++;
XX	    return (EOF);
XX	}
XX	scan = argv[optind] + 1;
XX	optind++;
XX    }
XX    c = *scan++;
XX    place = index (optstring, c);

XX    if (place == NULL || c == ':') {
XX	fprintf (stderr, "%s: unknown option -%c\n", argv[0], c);
XX	return ('?');
XX    }
XX    place++;
XX    if (*place == ':') {
XX	if (*scan != '\0') {
XX	    optarg = scan;
XX	    scan = NULL;
XX	}
XX	else {
XX	    optarg = argv[optind];
XX	    optind++;
XX	}
XX    }
XX    return (c);
XX}
@//E*O*F getopt.c//
chmod u=rw,g=rw,o=rw getopt.c
 
echo x - getpaths.1
sed 's/^XX//' > "getpaths.1" <<'@//E*O*F getpaths.1//'
XX.TH GETPATHS LOCAL 6/2/86
XX.SH NAME
XXgetpaths \- gather Usenet article paths
XX.SH SYNOPSIS
XX.B getpaths
XX[
XX.BI \-n " file"
XX] [
XX.BI \-u
XX] [
XX.I distrib
XX]
XX.SH DESCRIPTION
XX.PP
XX.I Getpaths
XXscans through the news spool and prints out all article paths.  Crossposted
XXarticles have their paths printed only once.
XX.PP
XXBy default, usernames are removed from the paths.  If the
XX.B \-u
XXflag is given, usernames are left on.
XX.PP
XXThe
XX.BI \-n " file"
XXoption causes paths to be included only from articles that are newer
XX(in terms of file modification time) than
XX.IR file .
XX.PP
XXIf no argument is given, the entire news spool will be scanned.  The
XX.I distrib
XXargument is a relative path from /usr/spool/news.  For example,
XX.PP
XXgetpaths net
XX.PP
XXgets paths from net.*, and
XX.PP
XXgetpaths net/micro/atari
XX.PP
XXdoes what you think.
XX.SH BUGS
XXThe algorithm for eliminating crosspostings only prints a path if
XXthe first newsgroup on the Newsgroups: line matches the directory currently
XXbeing scanned.  So if you say "getpaths na", an article with the header
XXline
XX.PP
XXNewsgroups: net.wanted,na.forsale
XX.PP
XXwill not have its path printed (though it will print if the groups are given
XXin the reverse order).  In other words, the first group is always considered
XXthe primary group, and other groups are always considered crossposts.
XX.SH AUTHOR
XXJoseph T. Buck, Entropic Processing, Inc.
XX.br
XX{pesnta,oliveb}!epimass!jbuck
@//E*O*F getpaths.1//
chmod u=rw,g=rw,o=rw getpaths.1
 
echo x - getpaths.c
sed 's/^XX//' > "getpaths.c" <<'@//E*O*F getpaths.c//'
XX/*
XX	getpaths.c
XX	Program to snarf up lots of Usenet paths
XX	Joseph T. Buck, Entropic Processing, Inc.
XX*/
XX#define SPOOLDIR "/usr/spool/news"
XX#include <stdio.h>
XX#define LINLEN 512
XXchar *strcpy();

XXint stripuser = 1;

XX/* This function assumes the current directory is SPOOLDIR, and that
XX   the paths are of the form net/news/group/2345.
XX*/
XXvoid perror(), exit();

XXwp (name, ino)
XXchar *name;
XXint ino;
XX{
XX    int status = 0, lng;
XX    char line[LINLEN], savpath[LINLEN];
XX    FILE *fd;
XX    char *p, *q, *rindex();
XX    char curngr[40];	/* current newsgroup */

XX/* Figure out the current newsgroup, by deleting whatever is
XX   after the last /, and changing '/' to '.'. Skip initial "./"
XX   if present
XX*/
XX    if (name[0] == '.' && name[1] == '/') name += 2;
XX    (void) strcpy (curngr, name);
XX    p = rindex (curngr, '/');
XX    if (p == NULL) return;
XX    *p = 0;
XX    while (p >= curngr) {
XX	if (*p == '/') *p = '.';
XX	p--;
XX    }
XX    lng = strlen (curngr);
XX/* Open the file */
XX    if ((fd = fopen (name, "r")) == NULL) {
XX	perror (name);
XX	return;
XX    }
XX    while (status != 3) {
XX	if (fgets (line, LINLEN, fd) == NULL) break;
XX	line[strlen(line)-1] = 0; /* delete \n */
XX	if (strncmp (line, "Newsgroups:", 11) == 0) {
XX	    p = line + 11;
XX	    while (*p == ' ' || *p == '\t') p++;
XX/* Detect cases like curngr == "net.micro", NG == "net.micro.pc,net.micro" */
XX	    if (p[lng] && p[lng] != ',' && p[lng] != ' ' && p[lng] != '\t')
XX		break;
XX	    else if (strncmp (p, curngr, lng) != 0) break;
XX	    status |= 2;
XX	}
XX	else if (strncmp (line, "Path:", 5) == 0) {
XX	    p = line + 5;
XX	    while (*p == ' ' || *p == '\t') p++;
XX/* Strip the username from the end of the path. Don't write anything
XX   if there's no ! in the path (a locally posted article)
XX*/
XX	    if (stripuser) {
XX		q = rindex (line, '!');
XX		if (q == NULL) break;
XX		*q = '\0'; /* Delete the tail */
XX	    }
XX	    (void) strcpy (savpath, p);
XX	    status |= 1;
XX	}
XX    }
XX    if (status == 3) (void) printf ("%s\n", savpath);
XX    (void) fclose (fd);
XX    return;
XX}

XXmain (argc, argv)
XXchar **argv;
XX{
XX    if (chdir (SPOOLDIR) != 0) {
XX	(void) fprintf (stderr, "Can't chdir to ");
XX	perror ("/usr/spool/news");
XX	exit (1);
XX    }
XX    if (argc > 1 && strcmp (argv[1], "-u") == 0) {
XX	stripuser = 0;
XX	argv++;
XX	argc--;
XX    }
XX    if (argc !=2) argv[1] = ".";
XX    scan_tree (argv[1], wp);
XX    return 0;
XX}

XX#include <sys/types.h>
XX#include <sys/stat.h>

XXis_dir (name)
XXchar *name;
XX{
XX    struct stat sbuf;
XX    return (stat (name, &sbuf) == 0 && (sbuf.st_mode & S_IFMT) == S_IFDIR);
XX}
@//E*O*F getpaths.c//
chmod u=rw,g=rw,o=rw getpaths.c
 
echo x - histog
sed 's/^XX//' > "histog" <<'@//E*O*F histog//'
XX#! /bin/sh
XXawk -F! '{ count[NF] += 1; if (NF > mx) mx = NF; sum += NF; }
XXEND { printf ("Path length statistics\nAverage length: %f\nHistogram:\n",
XX		sum / NR);
XX      for (i = 1; i <= mx; i++) printf ("%d %d\n",i,count[i]); }'
@//E*O*F histog//
chmod u=rwx,g=rwx,o=rwx histog
 
echo x - histog.mod
sed 's/^XX//' > "histog.mod" <<'@//E*O*F histog.mod//'
XX#! /bin/sh
XXawk -F! '{ count[NF] += 1; if (NF > mx) mx = NF; sum += NF; }
XXEND {
XX    printf "Path length statistics\nAverage length: %f\nHistogram:\n", sum / NR;
XX    for (i = 1; i <= mx; i++) printf ("%d %d\n",i,count[i]);
XX}'
@//E*O*F histog.mod//
chmod u=rwx,g=rwx,o=rwx histog.mod
 
echo x - hostcount
sed 's/^XX//' > "hostcount" <<'@//E*O*F hostcount//'
XX#! /bin/sh
XX# This script takes a list of paths as input.
XX# It prints a list of the sites encountered in the paths, sorted
XX# according to their frequency.
XXawk -F! '{ for (i = 1; i <= NF; i++) print $i }' $* |\
XXsort | uniq -c | sort -nr



@//E*O*F hostcount//
chmod u=rwx,g=rwx,o=rwx hostcount
 
echo x - makefile
sed 's/^XX//' > "makefile" <<'@//E*O*F makefile//'
XX# This makefile is appropriate for 4.2bsd.  For SysV or V7,
XX# replace "scantree" by "oscantree" everywhere.
XXCFLAGS = -O
XX# Use the following for Sys V.
XX# CFLAGS = -O -Dindex=strchr -Drindex=strrchr

XXgetpaths: getpaths.o scantree.o 
XX	cc $(CFLAGS)  getpaths.o scantree.o  -o getpaths
@//E*O*F makefile//
chmod u=rw,g=rw,o=rw makefile
 
echo x - makefile.42
sed 's/^XX//' > "makefile.42" <<'@//E*O*F makefile.42//'
XX# This makefile is appropriate for 4.2bsd or 4.3bsd.
XXCFLAGS = -O

XXgetpaths: getpaths.o scantree.o getopt.o
XX	cc $(CFLAGS)  getpaths.o scantree.o getopt.o  -o getpaths
@//E*O*F makefile.42//
chmod u=rw,g=rw,o=rw makefile.42
 
echo x - makefile.sysv
sed 's/^XX//' > "makefile.sysv" <<'@//E*O*F makefile.sysv//'
XX# This makefile is appropriate for System III and System V.
XXCFLAGS = -O -Dindex=strchr -Drindex=strrchr

XXgetpaths: getpaths.o oscantree.o 
XX	cc $(CFLAGS)  getpaths.o oscantree.o  -o getpaths
@//E*O*F makefile.sysv//
chmod u=rw,g=rw,o=rw makefile.sysv
 
echo x - makefile.v7
sed 's/^XX//' > "makefile.v7" <<'@//E*O*F makefile.v7//'
XX# This makefile is appropriate for Version 7, or any system that
XX# has neither getopt nor the 4.2 directory library.

XXCFLAGS = -O

XXgetpaths: getpaths.o oscantree.o 
XX	cc $(CFLAGS)  getpaths.o oscantree.o  -o getpaths
@//E*O*F makefile.v7//
chmod u=rw,g=rw,o=rw makefile.v7
 
echo x - oscantree.c
sed 's/^XX//' > "oscantree.c" <<'@//E*O*F oscantree.c//'
XX/*
XX   scan_tree: Joseph T. Buck, Entropic Processing, Inc.
XX	      Old-style version

XX   scan_tree applies a function to each file in a directory tree
XX   (excluding directories), and returns the number of files processed.
XX   This version reads directories directly and will not work with 4.2bsd.
XX*/
XX#include <sys/types.h>
XX#include <sys/dir.h>
XX#define MAXL 256


XXscan_tree (path, func)
XXchar *path;
XXint (*func)();
XX{
XX    char name[MAXL], *strcpy(), *strncpy(), *pos;
XX    struct direct dirent;
XX    int fd = open (path), nf = 0, len;

XX    if (fd < 0) return 0;
XX    
XX    (void) strcpy (name, path);
XX    len = strlen (path);
XX    name[len] = '/';
XX    pos = name + len + 1;
XX    pos[DIRSIZ] = '\0'; /* req'd in case dirent has length DIRSIZ */
XX    while (read (fd, (char *) &dirent, sizeof dirent) == sizeof dirent) {
XX	if (dirent.d_ino == 0) continue;
XX	(void) strncpy (pos, dirent.d_name, DIRSIZ);
XX	if (strcmp (pos, ".") == 0 || strcmp (pos, "..") == 0) continue;
XX	if (is_dir (name)) nf += scan_tree (name, func);
XX	else {
XX	    (func) (name, dirent.d_ino);
XX	    nf += 1;
XX	}
XX    }
XX    (void) close (fd);
XX    return nf;
XX}
@//E*O*F oscantree.c//
chmod u=rw,g=rw,o=rw oscantree.c
 
echo x - scantree.c
sed 's/^XX//' > "scantree.c" <<'@//E*O*F scantree.c//'
XX/*
XX   scan_tree: Joseph T. Buck, Entropic Processing, Inc.
XX	      New-style version

XX   scan_tree applies a function to each file in a directory tree
XX   (excluding directories), and returns the number of files processed.
XX   This version uses the 4.2bsd directory access library; another version
XX   that reads directories directly is available.
XX*/
XX#include <sys/types.h>
XX#include <sys/dir.h>
XX#define MAXL 256
XXscan_tree (path, func)
XXchar *path;
XXint (*func)();
XX{
XX    char name[MAXL], *strcpy(), *pos;
XX    DIR *dirp = opendir (path);
XX    struct direct *de;
XX    int nf = 0, len;

XX    if (dirp == NULL) return 0;
XX    (void) strcpy (name, path);
XX    len = strlen (path);
XX    name[len] = '/';
XX    pos = name + len + 1;
XX    while ((de = readdir (dirp)) != NULL) {
XX	if (strcmp (de->d_name, ".") == 0 || strcmp (de->d_name, "..") == 0)
XX	    continue;
XX	(void) strcpy (pos, de->d_name); 
XX	if (is_dir (name)) nf += scan_tree (name, func);
XX	else {
XX	    (func) (name,de->d_ino);
XX	    nf += 1;
XX	}
XX    }
XX    (void) closedir (dirp);
XX    return nf;
XX}
@//E*O*F scantree.c//
chmod u=rw,g=rw,o=rw scantree.c
 
echo x - threelink
sed 's/^XX//' > "threelink" <<'@//E*O*F threelink//'
XX#! /bin/sh
XX# This script takes a list of paths as input.
XXcat $* |\
XXawk -F! '{ for (i=1; i<NF-1; i++) printf ("%s!%s!%s\n", $i,$(i+1),$(i+2)); }' |\
XXsort | uniq -c | sort -nr
@//E*O*F threelink//
chmod u=rwx,g=rwx,o=rwx threelink
 
echo x - twolink
sed 's/^XX//' > "twolink" <<'@//E*O*F twolink//'
XX#! /bin/sh
XX# This script takes a list of paths as input.
XXcat $* |\
XXawk -F! '{ for (i = 1; i < NF; i++) printf ("%s!%s\n", $i, $(i+1)); }' |\
XXsort | uniq -c | sort -nr



@//E*O*F twolink//
chmod u=rwx,g=rwx,o=rwx twolink
 
exit 0
/* End of text from mirror:mod.sources */
-- 
Please send comp.sources.unix-related mail to rsalz@uunet.uu.net.

reid@decwrl.dec.com (Brian Reid) (05/26/88)

Yesterday I mentioned that I had some software that would make network flow
maps. I'm not able to release it yet, but I can show you what I'm talking
about. San Francisco Bay Area news admins have seen these maps pretty
regularly, as I hand them out at our annual meetings.

Some time in the next couple of months I will either release this program or
set up an electronic mail server so you can access it remotely by mail.
(you mail it your data; it mails you back a map).

This is a PostScript file. It's in 2 parts. Splice them together before you
print it.
--------------------- cut here -------------------------
%!
% netmap-1.4
% News paths to decwrl carrying >1% of traffic 
% Created by decwrl!reid (Brian Reid) Wed May 25 23:53:33 1988
/Pwid 612 def		% page width
/Pht 792 def		% page height
/Margin 23 def		% border margin
/Clw 15 def		% max-traffic line width
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	    statusdict begin setpageparams end
	}{
	    11 17 div dup scale		% for laserwriter
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    } ifelse
  } if
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/GMT  {gsave transform 0 0 moveto 1 scf div dup scale} bind def
/BA {gsave translate rotate 1 D dup scale newpath 0.2 setlinewidth
     dup newpath dup 4 mul exch moveto 0 0 lineto dup 4 mul  exch neg lineto
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	1 setgray stroke grestore} bind def
/HST {gsave translate rotate 0 0 moveto 0 0 CxD D 0 360 newpath arc
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	  dup 0 HSTln getinterval dup stringwidth pop -2 div 0.5 D moveto show
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/H {gsave translate CityDotFontSize D dup -.3 mul exch -.3058 mul
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	rotate moveto HFn setfont show
	grestore} bind def
/HF {HostNameFont [4 D 0 0 6 D 0 0] makefont} def
/IF {HostNameFont [4.5 D 0 0 7 D 0 0] makefont} def
/Mpath {newpath 0 0 moveto Pwid Margin 2 mul sub 0 rlineto
  0 Pht Margin 3 mul sub rlineto Pwid Margin 2 mul sub neg 0 rlineto
  closepath} bind def
/lctr {gsave zf setfont 10 mul 0 exch rmoveto dup
  stringwidth pop -2 div 0 rmoveto show grestore} bind def
/ldsp {/dr exch def gsave zf setfont dup stringwidth pop dr mul 0 rmoveto
	show grestore} bind def
/T1 {gsave MMX setmatrix
     0 -3 TitleSize sub MT TitleFont TitleSize CF show
     grestore} bind def
/T2 {gsave MMX setmatrix
     0 -5 TitleSize sub SubtitleSize sub MT TitleFont SubtitleSize CF show
     grestore} bind def
/MLB {290 -4 MT CaptionFont CaptionSize CF CaptionSize 1 add 
      mul neg 0 exch rmoveto show} bind def
/HSH {HSHx HSHy MT show /HSHy HSHy HSHdy sub def} def
/HSHmt {/HSHy exch def /HSHx exch def} def
/HSHdxy {/HSHdy exch def /HSHdx exch def} def
/INIT {Margin dup 2 mul translate 
       MMX currentmatrix pop
	Mpath 1 setlinewidth stroke} def
 % end profile
gsave
INIT
/CxD 11 2 div def
(News paths to decwrl carrying >1% of traffic) T1
(Continental U.S.A.) T2
(DECWRL netmap-1.4 by Brian Reid at Wed May 25 23:53:33 1988) 1 MLB
(Lambert Conformal Projection [44\312N,33\312N],  Map center: [40\312N, 96\312 30\302W]) 2 MLB
(Image resolution 300/in., stroke limit 10 pixels) 3 MLB
283 361 translate
0.240000 dup dup scale /scf exch def
/DAR [ DAR {D} forall ] def
/DSR [ DSR {D} forall ] def
/AFont ArrowFont 10 D scalefont def
% USA
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reid@decwrl.dec.com (Brian Reid) (05/26/88)

This is part 2 of a 2-part posting.
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% beginning of part 2
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1 -11 R -3 -13 R -3 -6 R S
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241 1505 M
29 -1 R 6 X S
323 1433 M
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f S
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S
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CityDotFont CityDotFontSize SCF
CityDotFont CityDotFontSize SCF
CityDotFont CityDotFontSize SCF
351 1220 H
212 301 H
298 158 H
401 1231 H
289 1183 H
257 112 H
401 1231 H
159 -984 H
305 1249 H
345 1233 H
347 1098 H
257 112 H
298 139 H
280 -316 H
191 -670 H
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331 473 H
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55 -1092 H
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166 -406 H
418 1233 H
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408 1231 H
297 1310 H
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335 1137 H
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102 -1068 H
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375 1225 H
146 -991 H
147 -1075 H
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234 -438 H
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374 1145 H
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223 1477 H
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37 -185 H
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205 -343 H
210 3 H
881 -1461 H
464 652 H
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0.05 SPW -1156 -1506 MT
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1.2 -156.2 391 1237 BA
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HF setfont gsave /HFn IF def
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(cornell) 0 -657 114 HST
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(dalsqnt) 0 -158 -1506 HST
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(elroy) 0 -1179 -433 HST
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(mnetor) 0 -1179 -342 HST
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grestore
 showpage

grestore
%!
% netmap-1.4
% News paths to decwrl carrying >1% of traffic 
% Created by decwrl!reid (Brian Reid) Wed May 25 23:53:50 1988
gsave
INIT
/CxD 11 2 div def
(News paths to decwrl carrying >1% of traffic) T1
(San Francisco and Silicon Valley) T2
(DECWRL netmap-1.4 by Brian Reid at Wed May 25 23:53:50 1988) 1 MLB
(Lambert Conformal Projection [40\312N,30\312N],  Map center: [37\312 39\302N, 122\312 12\302W]) 2 MLB
(Image resolution 300/in., stroke limit 1 pixels, rotated 27\312) 3 MLB
283 361 translate
0.240000 dup dup scale /scf exch def
/DAR [ DAR {D} forall ] def
/DSR [ DSR {D} forall ] def
/AFont ArrowFont 10 D scalefont def
% SF Bay Area
Wlw SLW -789 -1497 M
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15 Y 2 14 R 1 15 R 2 16 R 4 13 R -3 42 R -6 14 R -8 10 R 
-8 13 R -5 12 R -6 12 R -6 13 R -6 14 R -3 12 R 13 Y 1 14 R 
5 17 R 16 Y 3 13 R 1 14 R 4 16 R 4 15 R 7 16 R 7 18 R 
8 15 R 11 16 R 9 12 R 11 12 R 11 11 R 10 14 R 12 11 R 
10 11 R 11 12 R 10 10 R 12 13 R 11 12 R 10 15 R 10 14 R 
9 16 R 6 16 R 5 17 R 6 15 R 6 16 R 8 18 R 6 13 R 
4 16 R 1 14 R 2 15 R 1 15 R 1 14 R 29 Y 1 14 R 2 14 R 
5 15 R 28 Y 2 15 R 1 14 R 1 15 R 4 15 R 7 16 R 4 16 R 
8 30 R 2 16 R 1 15 R 1 13 R 1 14 R 14 Y -2 14 R -3 14 R 
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13 3 R 10 14 R 6 16 R 4 16 R 6 15 R 1 14 R 4 15 R 
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1 15 R 4 14 R 14 -9 R MI 17 -8 R 14 2 R 8 17 R 13 10 R 
14 6 R 13 X 13 4 R 12 6 R 12 9 R 11 11 R 6 16 R 7 16 R 
12 7 R 19 -3 R 8 -9 R 6 -12 R 14 -12 R 15 -8 R 17 -7 R 
15 -4 R 13 -1 R 14 X 26 8 R 15 3 R 12 4 R 12 7 R 13 3 R 
12 7 R 14 6 R 12 4 R 12 6 R 12 7 R 14 1 R 16 X 14 -2 R 
15 -4 R 15 -10 R 12 -11 R 11 -11 R 12 -10 R 6 -13 R 7 -12 R 
8 -13 R 5 -12 R 4 -13 R 7 -12 R 6 -12 R 9 -12 R 9 -13 R 
12 -10 R 34 -15 R 16 -3 R 16 X 12 X 16 X 41 X 28 X 15 X 15 -2 R 
14 -1 R 17 -2 R 15 -4 R 16 -5 R 16 -6 R 34 -19 R 17 -9 R 
9 -14 R 13 -11 R 11 -8 R 12 -12 R 14 -9 R 17 -10 R 15 -10 R 
12 -9 R 15 -10 R 14 -10 R 17 -9 R 19 -11 R 13 -9 R 14 -10 R 
9 -11 R 12 -11 R 9 -12 R 1968 2141 MB
1178 713 M
-16 6 R -30 8 R -17 7 R -1 14 R 
11 6 R 14 1 R 13 4 R 14 6 R 9 12 R -5 12 R -17 7 R 
-15 4 R -18 5 R -15 8 R -17 10 R -28 20 R -11 12 R -11 10 R 
-11 11 R -8 11 R -9 12 R -4 12 R 6 16 R 13 8 R 11 5 R 
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-6 12 R -7 13 R -4 16 R -7 12 R -6 12 R -5 12 R -10 11 R 
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-16 6 R -15 2 R -9 -16 R -1 -14 R -14 Y 1 -14 R -15 Y -9 -15 R 
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-22 -23 R -6 -16 R 10 -11 R 27 -21 R 6 -12 R 4 -13 R 7 -12 R 
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-12 -1 R -15 -3 R -12 -6 R -10 -14 R -2 -15 R -15 Y 2 -12 R -10 -12 R 
-14 -1 R -14 -1 R -11 -9 R -5 -17 R 3 -13 R 7 -11 R 6 -14 R 
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5 -12 R 6 -12 R 5 -13 R -6 -16 R -10 -14 R -14 -6 R -15 1 R 
-15 6 R -6 12 R -4 13 R -1 14 R -2 14 R 15 Y -7 12 R -13 -2 R 
-13 -8 R -10 -10 R -4 -15 R 6 -13 R 6 -14 R -13 Y -14 Y 2 -14 R MI 
-1 -14 R -5 -17 R -8 -13 R -12 -9 R -13 -3 R -14 -1 R -15 4 R 
-15 5 R -17 6 R -16 7 R -14 10 R -11 11 R -9 13 R -5 12 R 
-5 14 R -3 12 R -3 14 R -2 13 R -8 26 R -4 12 R -4 14 R 
-4 13 R -9 11 R -9 12 R -12 11 R -5 11 R -6 12 R -6 13 R 
-7 12 R -6 14 R -5 12 R -3 14 R -5 14 R -5 11 R -7 12 R 
-8 14 R -8 11 R -6 12 R -4 13 R 3 15 R 2 16 R 1 13 R 
-3 14 R -17 4 R -6 -13 R -2 -15 R -3 -15 R -11 -16 R -12 -2 R 
-14 -1 R -15 1 R -15 2 R -6 12 R -3 14 R -2 14 R -2 28 R 
-1 13 R -2 14 R -4 13 R -2 12 R -4 13 R -8 14 R -8 11 R 
-6 12 R -12 10 R -7 12 R -5 15 R -4 13 R -1 13 R -2 14 R 
1 15 R 1 15 R 5 17 R 3 13 R 2 15 R -1 14 R -2 12 R 
-5 14 R -6 11 R -6 12 R -1893 792 MB
Wlw SLW Wlw SLW Wlw SLW CityDotFont CityDotFontSize SCF
CityDotFont CityDotFontSize SCF
CityDotFont CityDotFontSize SCF
148 -1022 H
-21 854 H
-165 -652 H
85 -569 H
234 -934 H
-56 -602 H
80 -891 H
181 -1039 H
34 -833 H
80 -891 H
158 393 H
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33 -753 H
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288 -1487 H
311 -912 H
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1015 -407 H
69 544 H
-171 -620 H
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202 -997 H
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176 -999 H
257 -394 H
11 -787 H
38 401 H
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160 -1080 H
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69 -929 H
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278 -930 H
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175 -1000 H
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145 610 H
248 -947 H
133 669 H
60 -1030 H
251 -919 H
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278 -930 H
268 363 H
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0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 113 -935 MT
391 -939 924 -1053 1179 -1163  CL
1.2 -12.1 654 -1009 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.02 SPW -22 -707 MT
93 -590 161 -317 113 -159  CL
1.2 76.0 106 -448 BA
0.00 SPW 0.01 SPW -22 -707 MT
296 -489 896 -535 1179 -798  CL
1.2 -4.3 591 -572 BA
0.00 SPW -22 -707 MT
73 -895 187 -1295 204 -1506  CL
1.2 -74.2 120 -1098 BA
0.01 SPW -22 -707 MT
369 -152 969 -243 1179 -890  CL
1.2 -8.6 646 -348 BA
0.01 SPW -22 -707 MT
165 -866 301 -1265 249 -1506  CL
1.2 -71.2 203 -1076 BA
0.01 SPW -22 -707 MT
277 -106 878 -106 1179 -707  CL
1.2 0.0 578 -256 BA
0.00 SPW 0.00 SPW 0.01 SPW -22 -707 MT
432 -661 1033 -1049 1179 -1483  CL
1.2 -32.8 694 -915 BA
0.02 SPW -22 -707 MT
-229 -71 110 179 657 -205  CL
1.2 36.4 35 -73 BA
0.06 SPW -22 -707 MT
236 -1102 837 -1170 1179 -844  CL
1.2 -6.5 547 -1046 BA
0.01 SPW -22 -707 MT
270 -899 871 -921 1179 -753  CL
1.2 -2.2 573 -865 BA
0.02 SPW -22 -707 MT
-61 -782 -106 -942 -113 -1026  CL
1.2 -105.8 -80 -863 BA
0.05 SPW -22 -707 MT
140 -1376 741 -1513 1179 -981  CL
1.2 -12.8 475 -1295 BA
0.00 SPW -22 -707 MT
483 -518 1084 -860 1179 -1392  CL
1.2 -29.7 732 -779 BA
0.05 SPW -22 -707 MT
243 205 844 228 1179 -661  CL
1.2 2.2 552 -8 BA
0.02 SPW -22 -707 MT
-102 -832 -34 -946 113 -935  CL
1.2 -59.2 -40 -872 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW -204 -570 MT
20 14 678 1052 1111 1506  CL
1.2 57.7 375 517 BA
0.02 SPW -204 -570 MT
141 -501 833 -501 1179 -570  CL
1.2 0.0 487 -518 BA
0.00 SPW 0.08 SPW -204 -570 MT
-165 -586 -97 -632 -68 -661  CL
2.5 -33.9 -132 -611 BA
0.05 SPW -204 -570 MT
-204 -661  PL
1.2 -90.0 -204 -616 BA
0.00 SPW 0.00 SPW 0.01 SPW -204 -570 MT
-116 -636 25 -797 80 -891  CL
1.2 -48.4 -49 -720 BA
0.26 SPW -204 -570 MT
-469 -165 -287 428 158 616  CL
0.02 SPW -204 -570 MT
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1.2 -26.7 -106 -602 BA
0.18 SPW -204 -570 MT
269 -453 961 -773 1179 -1209  CL
0.36 SPW -204 -570 MT
-204 -616  PL
0.00 SPW 0.00 SPW -204 -661 MT
-51 -845 84 -1267 68 -1506  CL
1.2 -72.1 -4 -1063 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW -204 -661 MT
-433 43 -25 1127 612 1506  CL
1.2 69.4 -121 544 BA
0.02 SPW -204 -661 MT
-20 -838 92 -1261 22 -1506  CL
1.2 -75.0 4 -1058 BA
0.00 SPW -204 -661 MT
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1.2 0.0 -113 -621 BA
0.02 SPW -204 -661 MT
-256 -636 -346 -568 -385 -524  CL
1.2 143.0 -299 -600 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 158 616 MT
389 110 639 -950 657 -1506  CL
1.2 -76.8 487 -426 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 158 616 MT
381 826 892 1146 1179 1255  CL
1.2 32.1 644 973 BA
0.02 SPW 158 616 MT
215 132 725 -529 1179 -707  CL
1.2 -52.4 520 -160 BA
0.01 SPW 158 616 MT
131 278 -49 -360 -204 -661  CL
1.2 -105.8 25 -36 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW 158 616 MT
418 644 928 598 1179 524  CL
1.2 -5.1 672 608 BA
0.05 SPW 158 616 MT
249 570  PL
1.2 -26.7 204 593 BA
0.09 SPW 158 616 MT
199 625 267 602 294 570  CL
2.5 -18.5 231 608 BA
0.03 SPW 158 616 MT
488 92 511 -968 204 -1506  CL
1.2 -88.8 420 -439 BA
0.00 SPW 0.02 SPW 1179 -1163 MT
860 -1192 236 -1123 -68 -1026  CL
1.2 173.7 550 -1142 BA
0.00 SPW 0.00 SPW 0.01 SPW 249 570 MT
158 616  PL
1.2 153.3 204 593 BA
0.07 SPW 249 570 MT
256 239 143 -399 22 -707  CL
1.2 -100.1 183 -76 BA
0.05 SPW 249 570 MT
455 173 319 -510 -22 -798  CL
1.2 -101.2 318 -154 BA
0.13 SPW 249 570 MT
294 570  PL
2.5 0.0 272 570 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 249 -1506 MT
341 -1252 205 -852 -22 -707  CL
1.2 108.8 233 -1066 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW 68 -1506 MT
126 -1254 -9 -832 -204 -661  CL
1.2 107.9 26 -1053 BA
0.00 SPW 0.00 SPW 0.05 SPW -22 -798 MT
291 -807 892 -944 1179 -1072  CL
1.2 -12.8 588 -890 BA
0.00 SPW 71 -886 MT
71 -886  PL
0.00 SPW 33 -753 MT
66 -770  PL
1.2 -26.9 50 -762 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW 657 -205 MT
757 -232 938 -324 1020 -387  CL
1.2 -26.7 845 -283 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW 1020 -387 MT
1098 -574 1178 -961 1179 -1163  CL
1.2 -78.4 1128 -769 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW -113 -1026 MT
-108 -988  PL
1.2 82.7 -110 -1007 BA
0.00 SPW 0.01 SPW -113 -1026 MT
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1.2 82.9 -118 -841 BA
0.00 SPW 0.00 SPW 0.00 SPW -113 -1026 MT
-74 -982 18 -912 71 -886  CL
1.2 37.2 -26 -950 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW 113 -159 MT
443 -26 976 -186 1179 -479  CL
1.2 -16.7 694 -159 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.21 SPW 294 570 MT
407 203 248 -435 -22 -707  CL
0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW -517 -1262 MT
-141 -936 706 -453 1179 -296  CL
1.2 29.7 294 -716 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW -22 -661 MT
-161 -799 -378 -1124 -517 -1262  CL
1.2 -127.6 -270 -962 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW -22 -661 MT
-22 -707  PL
1.2 -90.0 -22 -684 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.01 SPW -204 -524 MT
150 -501 842 -592 1179 -707  CL
1.2 -7.5 494 -564 BA
0.00 SPW 0.00 SPW 0.00 SPW -68 -661 MT
-99 -763 -25 -878 80 -891  CL
1.2 -57.1 -45 -810 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.02 SPW 1179 -753 MT
869 -982 268 -959 -22 -707  CL
1.2 177.8 571 -910 BA
0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW 0.00 SPW -307 802 MT
-301 741 -314 621 -333 562  CL
1.2 -96.1 -311 681 BA
0.00 SPW 0.01 SPW -204 -616 MT
84 -261 776 308 1179 524  CL
1.2 39.5 444 6 BA
0.01 SPW -204 -616 MT
-645 683 45 1208 1179 433  CL
1.2 37.2 -102 686 BA
0.01 SPW -204 -616 MT
146 -569 837 -615 1179 -707  CL
1.2 -3.8 490 -609 BA
0.00 SPW 0.05 SPW -204 -616 MT
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1.2 -21.9 -56 -576 BA
0.23 SPW -204 -616 MT
-980 20 -753 614 249 570  CL
0.01 SPW -204 -616 MT
-204 -524  PL
1.2 90.0 -204 -570 BA
0.00 SPW 0.00 SPW 0.11 SPW 22 -707 MT
-22 -707  PL
2.5 180.0 0 -707 BA
0.00 SPW 0.00 SPW 96.6 -322.1 -240.5 SWA
73.0 -289.7 104.5 SWA
49.4 -123.7 408.5 SWA
-8.6 181.2 -559.7 SWA
-24.8 583.4 -682.6 SWA
-41.0 937.7 -909.2 SWA
-90.0 -204.1 -593.4 WA
-91.6 330.7 254.2 SWA
-104.0 279.8 -104.2 SWA
-116.3 157.1 -444.7 SWA
116.6 -602.0 -156.0 SWA
69.1 -644.9 232.3 SWA
21.6 -354.0 493.0 SWA
HF setfont gsave /HFn IF def
(agate) 0 249 570 HST
(amdahl) 0 113 -935 HST
(ames) 0 -22 -707 HST
(att) 0 1179 -479 HST
(bloom-bea) 0 1179 524 HST
(bnrmtv) 0 1179 1346 HST
(bunker) 0 1179 -1300 HST
(cbmvax) 0 1179 -844 HST
(cit-vax) 0 294 -1506 HST
(cogent) 0 1020 1506 HST
(cognito) 0 1179 -1346 HST
(csustan) 0 1179 -524 HST
(dasys1) 0 1179 251 HST
(decvax) 0 1179 -570 HST
(decwrl) 0 -204 -570 HST
(drivax) 0 -68 -1506 HST
(elroy) 0 249 -1506 HST
(eos) 0 22 -707 HST
(felix) 0 -22 -1506 HST
(fmsrl7) 0 1179 -433 HST
(gryphon) 0 1179 -1255 HST
(hc) 0 1179 -1392 HST
(hp-pcd) 0 612 1506 HST
(hp-sdd) 0 68 -1506 HST
(hpda) 0 -385 -524 HST
(hplabs) 0 -204 -661 HST
(husc6) 0 1179 -707 HST
(ig) 0 -22 -798 HST
(janus) 0 657 -1506 HST
(killer) 0 1179 -1483 HST
(labrea) 0 -204 -616 HST
(ll-xn) 0 1179 -981 HST
(lll-tis) 0 657 -205 HST
(lll-winke) 0 1020 -387 HST
(mailrus) 0 1179 -661 HST
(mcnc) 0 1179 -1026 HST
(mips) 0 -113 -1506 HST
(ncar) 0 1179 -844 HST
(necntc) 0 1179 -798 HST
(netsys) 0 1179 -935 HST
(nsc) 0 1111 1506 HST
(oliveb) 0 -113 -1026 HST
(oodis01) 0 1179 -205 HST
(otter) 0 1179 -616 HST
(pacbell) 0 113 -159 HST
(pasteur) 0 294 570 HST
(philabs) 0 1179 -296 HST
(pioneer) 0 1179 -1026 HST
(portal) 0 -68 -1026 HST
(purdue) 0 1179 -1209 HST
(pyramid) 0 -22 -661 HST
(pyrnj) 0 1179 -387 HST
(rayssd) 0 1179 -342 HST
(rutgers) 0 1179 433 HST
(sdcrdcf) 0 22 -1506 HST
(slvblc) 0 -430 -1506 HST
(smegma) 0 -1179 -753 HST
(sri-unix) 0 -204 -524 HST
(sun) 0 -68 -661 HST
(think) 0 1179 -890 HST
(ucbvax) 0 158 616 HST
(ucdavis) 0 1179 1255 HST
(ucsd) 0 204 -1506 HST
(umd5) 0 1179 -753 HST
(utzoo) 0 1179 342 HST
(uunet) 0 1179 -1163 HST
(uwmcsd1) 0 1179 -1072 HST
(xanth) 0 1179 -1118 HST
grestore
 showpage

INIT
(News paths to decwrl carrying >1% of traffic) T1
(Percent of your node's traffic carried by other nodes. * indicates a node whose location is unknown.) T2
(DECWRL netmap-1.4 at Wed May 25 23:53:50 1988) 1 MLB
HostNameFont CaptionSize CF 
15 713 MT 
( labrea       35.96%) show
15 703 MT 
( ames         35.89%) show
15 693 MT 
( agate        28.32%) show
15 683 MT 
( ucbvax       27.00%) show
15 673 MT 
( pasteur      22.42%) show
15 663 MT 
( purdue       18.08%) show
15 653 MT 
( gatech       12.09%) show
15 643 MT 
( eos          11.98%) show
15 633 MT 
( husc6        11.87%) show
15 623 MT 
( uunet        11.52%) show
15 613 MT 
( bloom-bea     9.14%) show
15 603 MT 
( mailrus       9.01%) show
15 593 MT 
( sun           8.58%) show
15 583 MT 
( tut.cis.o     7.84%) show
15 573 MT 
( ncar          7.27%) show
15 563 MT 
( seismo        7.18%) show
15 553 MT 
(*pitstop       6.90%) show
15 543 MT 
( sundc         6.84%) show
15 533 MT 
( hplabs        6.67%) show
15 523 MT 
( umd5          6.40%) show
15 513 MT 
( rochester     6.32%) show
15 503 MT 
( mit-eddie     5.89%) show
15 493 MT 
( uwmcsd1       5.27%) show
15 483 MT 
( udel          5.24%) show
15 473 MT 
( bbn           5.17%) show
15 463 MT 
( ig            4.96%) show
15 453 MT 
( ll-xn         4.84%) show
15 443 MT 
( rutgers       4.39%) show
15 433 MT 
( pyramid       3.64%) show
15 423 MT 
( umix          3.26%) show
15 413 MT 
( cornell       3.19%) show
15 403 MT 
( uw-beaver     3.10%) show
15 393 MT 
( ucsd          3.04%) show
15 383 MT 
(*nrl-cmf       2.83%) show
15 373 MT 
( boulder       2.75%) show
15 363 MT 
( sdcrdcf       2.75%) show
15 353 MT 
( mcvax         2.58%) show
15 343 MT 
( decvax        2.47%) show
15 333 MT 
(*i.cc.purd     2.39%) show
15 323 MT 
( att           2.35%) show
15 313 MT 
( sunybcs       2.34%) show
15 303 MT 
( j.cc.purd     2.30%) show
15 293 MT 
( pur-ee        2.29%) show
15 283 MT 
( uwvax         2.27%) show
15 273 MT 
( pacbell       2.24%) show
15 263 MT 
( tektronix     2.18%) show
15 253 MT 
(*pt.cs.cmu     2.15%) show
15 243 MT 
( oddjob        2.15%) show
15 233 MT 
(*ihnp4         2.10%) show
15 223 MT 
( itsgw         2.10%) show
15 213 MT 
( oliveb        2.05%) show
15 203 MT 
(*ulysses       2.04%) show
15 193 MT 
( portal        2.03%) show
15 183 MT 
(*cup.porta     2.00%) show
15 173 MT 
( cmcl2         1.97%) show
15 163 MT 
( amdahl        1.90%) show
15 153 MT 
( batcomput     1.84%) show
15 143 MT 
( leah          1.83%) show
15 133 MT 
( bu-cs         1.77%) show
15 123 MT 
( ucsdhub       1.72%) show
15 113 MT 
(*mtunx         1.72%) show
15 103 MT 
( im4u          1.68%) show
15 93 MT 
( killer        1.66%) show
15 83 MT 
( lll-tis       1.64%) show
15 73 MT 
( sri-unix      1.63%) show
15 63 MT 
( utzoo         1.62%) show
15 53 MT 
( hpda          1.62%) show
15 43 MT 
(*bingvaxu      1.58%) show
15 33 MT 
( mibte         1.57%) show
155 713 MT 
(*gamma         1.53%) show
155 703 MT 
( lll-winke     1.51%) show
155 693 MT 
(*brl-adm       1.50%) show
155 683 MT 
( mimsy         1.50%) show
155 673 MT 
( ut-sally      1.47%) show
155 663 MT 
(*iuvax         1.46%) show
155 653 MT 
( ukma          1.41%) show
155 643 MT 
( bellcore      1.38%) show
155 633 MT 
( elroy         1.34%) show
155 623 MT 
( watmath       1.33%) show
155 613 MT 
( princeton     1.32%) show
155 603 MT 
( necntc        1.30%) show
155 593 MT 
( oberon        1.30%) show
155 583 MT 
( umich         1.29%) show
155 573 MT 
( marque        1.27%) show
155 563 MT 
( hp-sdd        1.25%) show
155 553 MT 
( cit-vax       1.24%) show
155 543 MT 
( utgpu         1.23%) show
155 533 MT 
( steinmetz     1.23%) show
155 523 MT 
( ukc           1.23%) show
155 513 MT 
( mcnc          1.22%) show
155 503 MT 
( trwrb         1.19%) show
155 493 MT 
(*faline        1.19%) show
155 483 MT 
(*thumper       1.18%) show
155 473 MT 
( gryphon       1.18%) show
155 463 MT 
( amdcad        1.17%) show
155 453 MT 
(*osu-cis       1.17%) show
155 443 MT 
( sdcsvax       1.12%) show
155 433 MT 
(*att-ih        1.07%) show
155 423 MT 
( uiucdcs       1.05%) show
155 413 MT 
( prls          1.03%) show
155 403 MT 
(*athena.mi     1.02%) show
155 393 MT 
( philabs       1.01%) show
155 383 MT 
(*water         1.01%) show
155 373 MT 
( mnetor        1.01%) show
155 363 MT 
(*whuts         1.00%) show

showpage

grestore
% The end

jfh@rpp386.UUCP (John F. Haugh II) (05/27/88)

i have been playing with a toy which if handed a file containing system
names, lat/long pairs, and a collection of machines which are talked to,
it outputs a tplot format file of the input.

UNFORTUNATELY, i haven't been able to find the locations of all of the
machines on the backbone ...

- john.
-- 
John F. Haugh II                 | "If you aren't part of the solution,
River Parishes Programming       |  you are part of the precipitate."
UUCP:   ihnp4!killer!rpp386!jfh  | 		-- long since forgot who
DOMAIN: jfh@rpp386.uucp          | 

jfh@rpp386.UUCP (John F. Haugh II) (05/27/88)

i mentioned in a previous article that i have a toy which produces tplot
formatted output given some geographical and connectivity information.

i don't have the lat/long for hao, cae780 or ulysses, but other than that,
below is a uuencoded plot of the backbone.  i am not into geography or
anything like that so i can't tell you what is actually wrong with the
format, except that it is misproportioned and what not.  if you know the
exact location of the missing systems, let me know.  also, killer is
not included, nor is osu-cis.  that will change and perhaps i'll produce
and update if anyone is interested.

to view this thing, go drag the old tek4014 out of the closet, uudecode
this sucker, then run it through tplot to your favorite graphics device.
it looks, ah, interesting on a hercules display.

- john.
--------------------- cut here ------------------
begin 666 backbone.plot
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?20!Y"VQE#(@%90R(!6QE#(@%90R(!6QE#(@%_@+_#VPC
 
end
-- 
John F. Haugh II                 | "If you aren't part of the solution,
River Parishes Programming       |  you are part of the precipitate."
UUCP:   ihnp4!killer!rpp386!jfh  | 		-- long since forgot who
DOMAIN: jfh@rpp386.uucp          | 

spaf@cs.purdue.EDU (Gene Spafford) (06/01/88)

Original-from: Gene Spafford (spaf@cs.purdue.edu) & biep@cs.vu.nl (J. A. Durieux)
[Most recent change: 18 May 1988 by spaf@cs.purdue.edu]

A Usenet "backbone" site is one which exchanges every (non-local) news
article it receives with at least two other backbone sites; or which is
the main newsfeed for a particular geographical area (e.g., Australia)
or special news gateway (e.g., inet) and exchanges news with at least
one other backbone site.  This exchange is done (theoretically) with
minimum delay.  Thus, any article submitted to a backbone site is
supposed to propagate to all other backbone sites within a very short
time period. (Under actual conditions, your mileage may vary.)  To be
labelled as part of the "backbone," a site must also:
    * be of sufficient capacity to handle the load of news;
    * be of sufficient capacity and connectivity to handle the load
      of mail generated by replies to news articles and as submissions
      to mailing lists and moderated groups sent through the backbone;
    * be running a recent version of the news software, and keep
      up-to-date with new releases and patches;
    * provide a stable news and mail relay service, preferably including
      a mailer understanding domains and domain-based addressing;
    * be staffed by experienced, responsible, capable staff who
      will maintain news and mail, and quickly respond to problem
      reports and requests for assistance;
    * wish to be advertised as a backbone site, thus taking part in
      discussions and debate as well as becoming a target for abuse
      from the net-at-large;
    * evidence some measure of financial and/or political stability
      so as to be able to remain as a backbone site for the
      indefinite future.
Site admins wishing their site included in this posting should
document the above points in mail to "backbone-request@rutgers.edu".

Each backbone site normally feeds some number of well-connected
secondary sites, most of which are not "leaf" (terminal) nodes.
These secondary sites feed the news out to other distribution and leaf
nodes, and so on.

For optimal news distribution, each site should establish an "L" type
link with a site closely connected to a backbone site. This will help
ensure that any articles submitted from that site get propagated to the
whole net with a minimum of delay.  Sites should *not* request a news
feed from a backbone site unless they are willing to feed at least five
or six (or more) other, non-terminal sites.

Note that some backbone links (viz., ALL--munnari,ncar--nbires,
uunet--mcvax) do not carry all newsgroups, usually meaning "talk" and
some "rec" groups, but sometimes also including "soc", "sci", "news",
"misc", and "comp" newsgroups.  The European component of Usenet
receives a limited number of groups from outside Europe, as well as
having a number of active "eunet" newsgroups, and exchanges all those
articles via X.25 links.

To send mail to the administrators of all the backbone sites, address
your mail to "backbone@rutgers.edu".  If you wish to send mail to the
administrator of a particular site, consult the uucp map for the name
and address of the appropriate individual(s).  (In Europe uucp map
entries are obtained through the national backbone's "netdir"
service).

  /-------------------ohio-state                                   vuwcomp
 /                       |                                            :
/   /---------------\    |      ncar.....................nbires  ..munnari
|  /                 \   |      |   \                        |  /
| /         linus--husc6-+-ukma |    \----ames---amdahl----uunet---attcan--utzoo
| |         / |       |  |  | | |           |\        \      :  \            |
| | (decvax)  |       |  |  | | |           | \        : (mcvax) \           |
| |           |       |  |  | | | (rutgers) |  \       :     :    \          |
| |           |       |  |  | | |        |  |   \      :     :     |         |
| |           |       |  |  | | |        ucsd--ucbvax  :   kddlab  |         |
| \      philabs---cmcl2 |  | | |                  |    \    :     |       utgpu
|  \                 \   |  | gatech---purdue---decwrl--hplabs     |         |
|   \                 \  |  |  /  |            /                   |         |
|    \                 \ |  | /   |           /                    |         |
|  mit-eddie-----------rutgers---mcnc---decvax---------------tektronix       |
|                      /      \        /      \                              |
|                (ucsd)        bellcore       (linus)                        |
|                             /        \                                     |
\                      ulysses       clyde-------------------------------watmath
 \                                     |          
  \-----------------------------------att---alberta----ubc-cs

                                                      --- = full link
                                                      ... = restricted link

This is the European backbone (mcvax feeds all of them):

            tut   enea   diku   unido   hafro   	tut -> Finland
             |      \     |     /	  |		enea -> Sweden
             |       \    |    /	  |		diku -> Denmark
             |        \   |   /		  |		unido -> W. Germany
             |         \  |  /		  |		inria -> France
    inria----+----------mcvax-------------+       	mcvax -> Netherlands
             |         /  |  \	          |		cernvax -> Switzerland
             |        /   |   \	          |		ukc -> Great Britain
             |       /    |    \          |		prlb2 -> Belgium
             |      /     |     \         |		i2unix -> Italy
	   tuvie  ukc    prlb2   i2unix  cernvax	tuvie -> Austria
							hafro -> Iceland


Site		Who They Are
----		------------
alberta		University of Alberta, Edmonton, Alberta, Canada
amdahl		Amdahl Corp, Sunnyvale CA
ames		NASA Ames Research Center, Moffett Field, CA
att		AT&T "virtual machine", Columbus OH & Naperville, IL.
attcan		AT&T Canada, Toronto, Ontario, Canada
bellcore	Bellcore, Morristown, NJ 
cernvax		CERN Labs, Geneva, Switzerland
clyde		AT&T, NJ somewhere
cmcl2		NY University, New York City, NY
decvax		Digital Equipment Corp, Nashua, NH
decwrl		Digital Equipment Corp, Palo Alto, CA
diku		University of Copenhagen, Copenhagen, Denmark
enea		ENEA DATA Svenska AB, Taeby, Sweden
gatech		Georgia Institute of Technology, Atlanta, GA
hafro		Marine Research Institute, Reykjavik, Iceland
hplabs		HP Labs, Palo Alto, CA
husc6		Harvard University, Cambridge, MA
i2unix		University of Genova, Genova, Italy
inria		INRIA, Rocquencourt, Le Chesnay, France
kddlab		KDD International T&T Co., Tokyo, Japan
linus		Mitre Corporation, Bedford, MA
mcnc		Microelectronics Center of NC, Research Triangle Park, NC
mcvax		Centrum voor Wiskunde en Informatica, Amsterdam, Netherlands
mit-eddie	Massachusetts Institute of Technology, Cambridge, MA
munnari		University of Melbourne, Parkville, Victoria, Australia
nbires		NBI Inc., Boulder CO
ncar		National Center for Atmospheric Research, Boulder, CO
ohio-state	Ohio State University, Columbus, OH
philabs		Philips Laboratories, Briarcliff Manor, NY
prlb2		Philips Laboratory, Brussels, Belgium
purdue		Purdue University, W. Lafayette, IN
rutgers		Rutgers University, Piscataway, NJ
tektronix	Tektronix, Inc., Beaverton, OR
tut		Tampere University of Technology, Tampere, Finland
tuvie		TU Wein, EDV-Zentrum/PRA, Wein, Austria
ubc-cs		University of British Columbia, Vancouver, BC
ucbvax		University of CA at Berkeley, Berkeley, CA
ucsd		University of CA at San Diego, La Jolla, CA
ukc		University of Kent, Canterbury, Kent, UK
ukma		University of Kentucky, Lexington, KY
ulysses		AT&T Bell Labs, ??, NJ
unido		University of Dortmund, Dortmund, W. Germany
utgpu		University of Toronto, Toronto, Ontario, Canada
utzoo		University of Toronto, Toronto, Ontario, Canada
uunet		UUNET Communications, Inc., Fairfax, VA
vuwcomp		Victoria University of Wellington, Wellington, New Zealand
watmath		University of Waterloo, Waterloo, Ontario, Canada
-- 
Gene Spafford
NSF/Purdue/U of Florida  Software Engineering Research Center,
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

page@swan.ulowell.edu (Bob Page) (06/01/88)

Isn't there a new backbone in Spain, fed by mcvax?

I don't understand some of the map.  Like, why are ulysses, ubc-cs and
vucomp on there, all dead ends (and vucomp a restricted link at that)?
I submit that a 'backbone' link is to carry the news fast between
other backbone links, and I don't see these sites as doing that
(except for their leaf nodes ... hell, everybody does that). By the
same token, alberta would have to be looked at.

I can't decide what the rutgers-ukma link is.  Two paths?  Does the '+'
mean all the connected sites talk to each other?  Although it looks like
rutgers is the center of the Usenet universe, some links are triads
(rutgers/gatech/mcnc, rutgers/cmcl2/husc6, rutgers/ukma/gatech).
Since I assume this is all NNTP traffic, I wonder how much Internet
traffic would be cut by dropping some of those links, or making them
mostly unidirectional?

I also wonder about linus ... we're a hop away from husc6, and I don't
see much traffic through linus.

Are these maps generated by hand?

..Bob
-- 
Bob Page, U of Lowell CS Dept.  page@swan.ulowell.edu  ulowell!page

reid@decwrl.dec.com (Brian Reid) (06/02/88)

Here is this month's PostScript map of the backbone. It is completely machine
generated, from Gene Spafford's list of backbone sites and from the uucp map
files' list of locations and connectivity. As a result it has some bugs (e.g.
the uucp map entry for "att" is hopelessly bogus, and there is some confusion
as to just what is the name of the node "ohio-state"). 

If you have Internet FTP access to decwrl you can get a lot more maps like
this, in more detail and showing more things, from pub/maps/*; if you have
direct uucp access to decwrl you can get to the same files as
/usr/spool/uucppublic/ftp/pub/maps/*.

%!
% netmap-1.5
% USENET Backbone in the U.S. 
% Created by decwrl!reid (Brian Reid) Sun May 29 21:53:51 1988
/Pwid 612 def		% page width
/Pht 792 def		% page height
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	    11 72 mul 17 72 mul 36 1	% w h offs. orientation
	    statusdict begin setpageparams end
	}{
	    11 17 div dup scale		% for laserwriter
	} ifelse
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  } if
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/SubtitleSize 7.5 def
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/Nlw 0.25 def   /Mlw 0.5 def	/Wlw 1 def	/Xlw 1.5 def
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/DSR [5 1 1 1 1 1] def
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(USENET Backbone in the U.S.) T1
(DECWRL netmap-1.5 by Brian Reid at Sun May 29 21:53:51 1988) 1 MLB
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% USA
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-9 -5 R -5 -4 R 8 3 R -13 -5 R -5 7 R 
-15 -8 R 5 6 R -14 5 R -7 -4 R -13 -4 R -16 -5 R -1 -8 R 
-15 4 R 1 11 R -6 3 R 3 -9 R -10 -5 R -9 2 R -8 6 R 
5 -8 R 2 -9 R 7 -7 R -7 -8 R -7 -7 R -13 X 1 6 R 14 2 R 
-6 7 R -3 8 R ST
-878 -1239 MP
-5 -14 R -8 1 R -13 4 R -7 7 R 5 -9 R 
8 -3 R 4 -7 R 3 -11 R -11 -9 R -9 -6 R -11 5 R -10 7 R 
-8 X -1 12 R 1 -15 R -9 Y -8 -4 R -5 5 R -11 9 R -9 1 R 
14 -7 R 6 -10 R -4 -13 R -6 -3 R -9 3 R 8 -6 R 1 -8 R 
-2 -9 R -10 -8 R -3 6 R 1 8 R -3 14 R -7 6 R -9 4 R 
6 -6 R 7 -3 R 3 -9 R -2 -12 R -12 -1 R -4 -9 R -5 -5 R 
2 9 R -1 8 R ST
-1002 -1327 MP
-3 -12 R 2 -10 R -8 -7 R -1 -9 R 7 -1 R 
-7 -8 R -12 -9 R -13 -4 R -8 -1 R -1 8 R 3 8 R 14 Y -3 -16 R 
-4 -9 R -7 7 R -10 11 R 2 15 R 3 7 R 4 10 R -7 6 R 
4 -9 R -8 -19 R -7 -6 R 1 -9 R 7 X 9 -6 R -7 -6 R -17 2 R 
-9 4 R -2 8 R -11 10 R 6 5 R -8 4 R -1 8 R -2 8 R 
7 5 R 10 1 R 8 3 R -12 -3 R -13 5 R -2 -8 R -7 -4 R 
-11 4 R -3 9 R -8 4 R -8 -1 R 9 -1 R 6 -6 R 6 -10 R 
5 -7 R 4 -8 R 2 -9 R -5 -9 R -10 4 R 7 -4 R -9 -2 R 
-4 7 R 1 -8 R 6 -7 R 4 -8 R -7 6 R -14 8 R -8 6 R 
-7 3 R ST
-1165 754 MP
-11 11 R q -13 12 MB
-856 1308 MP
4 -7 R 11 -10 R 11 -5 R 9 -5 R 9 -4 R 
12 -4 R 14 -2 R 12 -6 R 8 -7 R -3 -9 R -9 Y -2 -9 R -9 Y 
2 -23 R 4 4 R -2 9 R -3 10 R 1 10 R 3 8 R 2 13 R 
5 7 R 17 -1 R 10 -3 R 9 -5 R 9 -1 R 7 -8 R 9 -3 R 
11 -2 R 12 -6 R 8 -7 R 17 -8 R S ST
-647 1215 MP
-9 6 R -5 8 R -7 8 R 
-16 13 R -9 3 R -12 6 R -9 X -9 5 R -9 4 R -11 4 R -9 2 R 
-8 5 R -19 9 R -12 8 R -11 9 R -9 5 R -8 7 R -8 7 R 
-6 8 R -6 5 R ST
-1147 518 MP
-3 9 R 3 9 R -1 9 R -2 20 R 5 8 R 
-2 9 R 4 10 R 8 6 R 9 4 R 9 -1 R 9 -1 R 9 -1 R 
9 -2 R 13 3 R 8 7 R 9 5 R 15 5 R 9 -2 R 17 6 R 
13 X 9 -3 R 12 2 R 6 9 R 7 6 R ST
-971 636 MP
7 7 R 8 7 R 9 9 R 
9 -4 R 3 9 R 8 7 R 3 13 R 5 7 R 6 8 R 11 11 R 
16 10 R 9 -1 R 12 -9 R 11 -9 R -6 8 R -7 6 R -8 5 R 
-3 8 R 1 9 R 4 9 R 5 9 R 7 8 R 8 7 R 7 7 R 
4 2 R ST
-842 780 MP
-8 -4 R -13 -15 R -13 -5 R -16 3 R -9 3 R -8 7 R 
8 6 R 3 9 R 14 5 R -13 3 R -9 -1 R -7 -6 R -15 1 R 
-8 X -9 5 R -9 3 R -12 -1 R -13 -4 R -5 -8 R -9 -6 R -10 -3 R 
-9 -2 R -8 -6 R -10 -1 R ST
-1031 762 MP
-13 -5 R -6 -4 R -6 X -7 -5 R -11 3 R 
-7 -8 R -5 6 R -4 -11 R -7 -2 R -5 -8 R -13 -7 R -13 -6 R 
-6 -3 R -6 9 R -5 8 R -4 8 R -7 7 R -7 8 R s ST
-1014 1506 MP
6 -8 R 
2 -9 R 1 -9 R 6 -17 R 5 -8 R 3 -14 R 5 -9 R 3 -9 R 
1 -11 R 11 -21 R 1 -9 R 10 -11 R -8 Y 7 -2 R 8 -8 R 8 -5 R 
9 -2 R 8 -5 R 9 1 R 17 2 R 14 -8 R 18 -27 R 4 -4 R 
ST
-839 1337 MP
-10 12 R -7 8 R -8 7 R -7 8 R -7 8 R -10 12 R -18 39 R 
-2 12 R -1 9 R 1 11 R 2 12 R 4 9 R 5 7 R 4 -7 R 
6 5 R 4 9 R 8 X 9 -1 R 6 -7 R 6 -7 R 9 -1 R 9 -7 R 
8 -6 R 7 -7 R -1 -9 R -8 Y -2 -13 R 8 -10 R 4 -8 R 4 -8 R 
7 -7 R 4 -6 R ST
-797 1394 MP
-4 9 R -7 8 R 3 13 R -1 18 R 5 8 R 
8 6 R -7 9 R -12 10 R 9 Y 1 7 R 1 6 R 8 -2 R 14 2 R 
9 -1 R 9 -5 R 9 -7 R -2 16 R -3 5 R 31 111 MB
-1179 405 MP
6 16 R 3 9 R 
3 14 R 4 9 R 12 10 R 8 10 R 13 -6 R 9 -2 R -8 3 R 
-8 3 R -8 11 R 2 13 R -2 8 R -4 9 R 1 6 R ST
-625 1506 MP
1 -9 R 
-4 -4 R 12 -5 R 8 -5 R 5 -11 R 4 -9 R 3 -12 R -7 -7 R 
7 5 R 8 6 R 6 X 5 6 R 9 -5 R 2 -9 R 4 -4 R 8 -4 R 
7 -6 R -4 -5 R 9 -2 R 5 -4 R 7 -2 R ST
-529 1419 MP
-9 -6 R -9 Y 9 -3 R 
5 -5 R 6 -5 R -4 -6 R -7 -3 R 6 -8 R 9 2 R 13 -2 R 
9 1 R 4 -5 R -3 -7 R 11 -3 R -4 -5 R 9 X -7 -5 R 9 -2 R 
-7 -6 R 9 3 R 4 -6 R 4 -8 R 9 -4 R 12 -2 R 9 1 R 
10 -7 R 9 X 9 -1 R 9 -3 R 9 X 8 5 R 5 5 R 8 -5 R 
9 -4 R 13 4 R -2 8 R 6 7 R 11 6 R 4 7 R 7 5 R 
8 Y -3 8 R -8 7 R -7 -6 R -8 -3 R 6 8 R 8 4 R ST
-329 1379 MP
9 3 R 
5 -9 R 12 -17 R -8 Y -10 -5 R 13 -5 R 7 -11 R 2 -6 R -10 -2 R 
-8 2 R 6 -8 R 9 -4 R 10 2 R 9 -4 R 8 -21 R 5 -20 R 
7 -5 R 4 -13 R 5 -12 R 6 -8 R 7 -8 R 23 -21 R 8 -7 R 
-8 2 R -14 -1 R -8 -5 R 9 3 R 9 2 R 12 -2 R 8 -5 R 
9 -3 R 6 -1 R ST
-179 1182 MP
2 9 R 1 8 R 9 1 R 19 1 R 9 1 R 
-8 -1 R 11 -1 R 16 -2 R 9 -2 R 8 -7 R 8 X 8 -6 R 9 -3 R 
11 -2 R 2 -7 R -10 1 R -5 -6 R -3 -15 R -2 -8 R -6 -8 R 
-8 -4 R -8 -1 R -8 3 R -6 7 R -8 6 R 7 -8 R 8 -7 R 
9 -4 R 11 2 R 8 6 R 10 9 R 10 2 R 10 9 R 6 8 R 
5 6 R 9 -5 R 5 10 R T ST
-28 1174 MP
8 X 25 -10 R 9 -2 R 10 -2 R 13 -2 R 
5 -5 R 9 -4 R 22 -3 R -8 -6 R -16 2 R -16 3 R -8 4 R 
-12 -5 R -1 -7 R -9 2 R -4 -6 R -8 -1 R 5 -7 R -4 -9 R 
-4 -9 R -10 4 R -7 11 R 1 -9 R -6 -6 R 4 -5 R -9 1 R 
-6 2 R 5 -7 R -9 -1 R -5 8 R -8 -7 R -9 2 R -7 7 R 
-8 4 R -9 -3 R 7 -7 R 8 X 4 -7 R 8 -5 R 4 -5 R 6 4 R 
6 1 R 7 1 R 21 2 R 9 3 R 7 8 R 1 -9 R -7 -7 R 
-8 -3 R 9 2 R 7 6 R 5 7 R 5 7 R 9 5 R -5 -7 R 
-7 Y -1 -13 R -8 -6 R 1 -7 R 3 -13 R -8 -4 R -8 3 R -8 5 R 
-8 X 10 -5 R 9 -4 R 9 -1 R 7 4 R ST
6 1057 MP
-2 11 R 7 8 R 1 9 R 
3 15 R 6 13 R 7 5 R 15 -4 R -4 -10 R -5 -8 R -5 -7 R 
-5 -7 R -6 -7 R 9 7 R 10 12 R 5 8 R 4 8 R 1 9 R 
8 6 R 5 -3 R 5 -6 R 2 -7 R -7 -9 R 8 6 R 16 23 R 
3 -9 R -4 -8 R -8 -8 R 1 -8 R -3 -11 R 2 -9 R 9 Y 3 9 R 
2 9 R 7 8 R 11 7 R -8 11 R 5 21 R 12 8 R 5 2 R 
ST
112 1161 MP
9 4 R 22 13 R 8 7 R 6 2 R -7 -5 R -8 -8 R -8 -3 R 
-8 -5 R -8 -4 R -15 -7 R 10 X 7 X 5 6 R 16 10 R -4 -6 R 
-9 Y 8 -5 R 1 -9 R 8 -6 R 1 -9 R -4 -7 R -8 -1 R 9 -1 R 
7 6 R 3 7 R -4 8 R -2 8 R 2 14 R 15 2 R 1 -4 R 
ST
175 1158 MP
-5 7 R -9 -2 R -5 11 R 8 5 R 10 2 R 4 -6 R 9 -5 R 
12 -7 R -4 -15 R 2 -9 R -7 -1 R 9 -1 R 1 -13 R -2 -12 R 
4 7 R 2 9 R 1 8 R 1 8 R 10 -5 R 6 3 R 10 -11 R 
-4 -8 R -4 -8 R 7 7 R 4 7 R -4 11 R -2 10 R -4 8 R 
15 -3 R 3 -7 R 2 -9 R 5 -5 R 4 -9 R 5 -9 R 8 -11 R 
-8 -1 R -3 -5 R ST
256 1099 MP
9 1 R 7 2 R 12 -10 R 9 -5 R 9 -3 R 
11 -2 R -8 -2 R 10 1 R 8 -5 R 2 -17 R 4 -9 R 13 -16 R 
9 -6 R 11 -5 R 11 -3 R 2 -7 R 6 4 R 8 -5 R ST
389 1012 MP
12 -5 R 
2 -8 R 8 -1 R 9 -11 R 11 -4 R 6 -9 R 9 -17 R 2 -10 R 
2 8 R 11 X -8 Y -8 -2 R 9 X -7 -8 R -8 -4 R 9 3 R 9 4 R 
7 4 R 5 -6 R 7 1 R 7 -7 R 5 -5 R 9 X 1 -9 R 9 8 R 
5 -9 R 7 5 R 8 -2 R 2 -9 R I ST
537 907 MP
2 9 R 6 3 R 3 -6 R 
11 2 R 11 -4 R 11 2 R 7 5 R 10 2 R 9 4 R 13 5 R 
9 3 R 19 9 R 19 10 R 13 8 R 28 22 R 12 10 R 17 7 R 
17 2 R 16 10 R 5 3 R ST
776 1013 MP
-21 -14 R -17 -2 R -13 -3 R -3 -11 R 
-8 -5 R 8 2 R 10 4 R 10 4 R 13 9 R 8 4 R 9 7 R 
8 5 R 9 6 R 31 16 R 8 7 R 9 6 R 9 3 R 21 4 R 
16 1 R 23 1 R 9 2 R 13 -6 R 9 -3 R 9 -1 R 12 1 R 
9 -2 R 3 2 R ST
970 1050 MP
4 -16 R 3 -9 R 2 -8 R 1 -13 R -8 -4 R 
8 Y 1 8 R -6 -8 R -7 -10 R -13 -9 R -8 -7 R -6 -6 R -4 -13 R 
-6 -9 R -8 -7 R -21 -10 R -8 X -8 3 R -4 2 R ST
873 943 MP
8 -7 R 7 -5 R 
-7 -5 R -10 -1 R -10 -2 R -3 -12 R 7 6 R 5 -5 R -6 -7 R 
-8 -7 R -9 -6 R -19 -13 R -13 5 R -9 4 R -13 1 R 1 -7 R 
-2 -9 R 5 6 R 12 -5 R -3 -5 R -7 -7 R -14 3 R -13 X -9 2 R 
-9 1 R -21 -3 R -11 -5 R -9 -6 R -6 -8 R -5 -13 R -2 -4 R 
ST
700 828 MP
-8 -6 R -4 -9 R -14 -11 R -8 -7 R -6 -8 R -4 -9 R -4 -15 R 
4 -13 R 6 -1 R 5 -5 R 3 -8 R 6 -8 R 7 -8 R 1 -8 R 
3 -9 R 3 -9 R -2 -8 R -2 6 R -9 -4 R -5 -9 R -8 -10 R 
3 9 R -6 -8 R -7 -5 R -3 -9 R 7 5 R -3 -11 R -6 -29 R 
-3 8 R -5 6 R -1 -9 R 2 -9 R t ST
639 615 MP
7 -8 R 2 -9 R 1 -10 R 
3 -9 R -8 5 R -3 -5 R 5 -6 R 13 -14 R -7 1 R 6 -8 R 
7 -8 R 2 -13 R -6 5 R -6 -8 R -8 -2 R -10 -3 R 4 -6 R 
13 -2 R 6 -5 R -2 -9 R 5 -13 R -3 -17 R 5 -17 R -10 Y 7 -6 R 
7 -8 R 1 -13 R -4 -9 R -4 -9 R -16 Y K ST
675 381 MP
13 -6 R 4 8 R 1 13 R 
-4 8 R -4 10 R 2 6 R 4 -7 R 7 3 R 4 9 R -8 2 R 
-6 8 R 8 5 R 9 X 5 -8 R 7 -4 R 3 -8 R 10 9 R 6 8 R 
3 13 R 4 9 R 6 7 R 7 -5 R 2 -7 R 9 -8 R Q ST
770 443 MP
-9 3 R 
-9 1 R -1 -8 R -3 -9 R -3 -7 R -11 -14 R -3 -9 R 3 -7 R 
2 8 R 16 -1 R 8 -4 R -5 -7 R -4 -8 R -2 -6 R 4 -7 R 
9 -8 R -1 -11 R -4 -13 R -2 -9 R -6 -6 R ST
749 321 MP
10 Y -8 -6 R -4 -9 R 
-8 -12 R -8 -9 R -4 -6 R -1 -9 R 6 -8 R 8 X 7 -8 R -1 -16 R 
-2 -11 R -5 -13 R -4 -11 R -2 -17 R 1 -9 R 1 -13 R 4 -9 R 
F ST
726 162 MP
-9 5 R -8 -2 R 10 -6 R 8 3 R 4 -9 R 3 -9 R 4 -9 R 
5 -9 R 10 -16 R -7 6 R -3 8 R -2 -9 R -4 -5 R -8 2 R 
-3 -8 R 4 -8 R 7 -1 R 7 1 R 7 4 R 10 -5 R 6 -8 R 
9 -2 R 8 -7 R 12 -17 R 5 -9 R 2 -14 R 8 Y 6 -8 R 7 -17 R 
-4 8 R -9 Y -4 -7 R -6 -5 R 6 -9 R -1 -6 R 7 5 R 5 4 R 
6 X 6 -9 R -4 -5 R -7 -6 R ST
820 -18 MP
9 X 14 -4 R 2 -7 R -1 -9 R 
7 -1 R 1 6 R 9 -6 R 2 -8 R 3 -12 R 8 7 R 7 3 R 
11 -4 R 9 -4 R 2 -6 R -4 -11 R 6 -5 R 4 8 R 5 11 R 
10 -1 R 8 -5 R 12 4 R 9 2 R 9 2 R 12 1 R 11 5 R 
9 3 R 6 5 R -5 2 R ST
996 -43 MP
7 1 R ST
355 -1224 MP
-14 -2 R -9 -3 R -8 -6 R 
-10 -7 R -11 -10 R -9 -6 R -5 -9 R -9 Y -9 2 R -10 -2 R -5 -8 R 
-1 -9 R -10 -16 R -8 -7 R -10 -4 R -7 -8 R -4 -9 R -3 -9 R 
-10 -23 R -1 -9 R D ST
211 -1380 MP
-8 -3 R -8 -2 R -13 4 R -9 1 R -9 3 R 
-9 -8 R -9 -1 R -12 -5 R -11 -4 R -8 -7 R -17 -6 R -13 -4 R 
-13 -5 R -8 -6 R -24 4 R -2 7 R s ST
36 -1410 MP
-18 -3 R -2 -9 R -8 -7 R 
-9 -4 R -9 -1 R -9 2 R -13 -2 R -14 5 R 2 7 R 8 -3 R 
7 3 R 7 6 R -14 2 R -7 -5 R -13 -1 R -5 8 R 3 9 R 
2 10 R 2 13 R 4 7 R -5 -5 R -8 Y -9 -12 R 3 -10 R -8 -11 R 
7 -4 R 8 -1 R 1 -7 R -8 -7 R -10 -7 R -9 X -10 -3 R ST
-90 -1448 MP
-15 -4 R 
-9 -6 R -17 -6 R -9 -5 R -10 3 R -29 2 R -23 5 R -11 -2 R 
-13 -4 R -11 -6 R -9 -2 R -14 2 R -8 6 R -5 8 R -8 5 R 
-21 7 R -9 6 R -9 3 R -24 -3 R ST
-345 -1439 MP
-9 6 R -10 -3 R -9 -1 R 
-18 3 R -9 4 R -9 X -9 -1 R -8 4 R -13 8 R -9 5 R -7 8 R 
-9 4 R -8 11 R -9 -1 R -17 7 R -9 4 R -13 5 R -9 3 R 
-8 4 R -16 7 R ST
-553 -1361 MP
-13 5 R -15 5 R -8 3 R -5 5 R -10 4 R 
-13 X -10 5 R -9 1 R 1 16 R 1 9 R 7 5 R -9 -2 R -3 -8 R 
-4 -8 R -5 -10 R -9 X -8 3 R 8 -1 R -8 7 R -6 7 R U ST
-671 -1312 MP
-5 -8 R 
-8 -4 R -6 7 R -8 -5 R -13 1 R -18 -1 R -9 2 R -10 1 R 
-11 -1 R -15 -5 R -9 1 R -9 4 R -9 1 R l ST
-803 -1320 MP
7 9 R 7 8 R 
8 7 R 5 9 R 4 9 R 8 19 R 2 8 R 7 8 R 6 5 R 
9 3 R 6 -8 R 4 -8 R 7 -8 R 6 -7 R 8 5 R -4 -6 R 
-7 6 R -10 17 R -10 11 R 11 3 R 5 -9 R 6 -3 R 8 3 R 
9 -4 R 2 -7 R 2 -7 R -8 4 R 3 -8 R 7 -6 R 9 2 R 
-1 9 R -4 8 R -7 5 R 8 Y -7 3 R -8 1 R -7 X -8 4 R 
-10 7 R -4 7 R ST
-1156 -1385 MP
10 -1 R -1 -7 R -5 -6 R -3 8 R -1 6 R 
ST
-1178 -1377 MP
9 -4 R 13 -12 R -9 1 R -9 7 R y 0 -5 MB
-1178 -1383 MP
8 -7 R 8 -9 R -8 -4 R 
-8 -1 R 0 -21 MB
-1178 -1401 MP
0 0 MB
-1178 -1410 MP
9 4 R 13 1 R -4 -7 R -8 -1 R -8 X W 0 -2 MB
-1178 -1506 MP
0 0 MB
-1174 -1506 MP
5 3 R 4 0 MB
-1168 -1506 MP
5 2 R 
d 4 0 MB
-1003 -1389 MP
-10 -4 R -11 -17 R 2 -9 R 1 -8 R 16 2 R 9 4 R 1 8 R 
8 Y -4 5 R -4 -8 R 7 14 R 9 -2 R -6 -13 R 5 -9 R 11 6 R 
11 -6 R -4 8 R 4 5 R 9 3 R -1 7 R -1 8 R 17 -8 R 
5 8 R -4 8 R 15 4 R 5 5 R 8 5 R 2 6 R -2 -8 R 
5 -11 R 9 -3 R 5 11 R -1 11 R 6 5 R 5 -5 R 1 9 R 
11 5 R 5 -7 R 10 3 R 6 8 R 3 20 R -4 8 R -7 5 R 
y ST
-863 -1306 MP
11 -4 R 6 -8 R 5 -9 R 7 -4 R 7 7 R 8 6 R 6 7 R 
9 11 R 7 7 R 7 8 R 7 13 R -4 8 R 10 Y -14 -2 R 4 -8 R 
-8 2 R -8 -3 R -7 3 R -8 -3 R -16 -4 R -9 -4 R -7 -5 R 
-6 -10 R -11 -10 R -13 -5 R -9 2 R -9 -4 R -9 -2 R -15 -3 R 
-20 -4 R -6 -12 R -6 -7 R -5 -9 R -4 -9 R -5 -7 R -7 -9 R 
-13 -15 R -5 -7 R ST
-795 -1243 MP
11 2 R -7 -6 R -4 4 R ST
-800 -1231 MP
8 2 R -3 -9 R 
-5 7 R ST
-824 -1257 MP
11 4 R 2 -6 R -8 2 R -5 -1 R ST
-837 -1258 MP
13 5 R -8 -5 R 
-5 -1 R ST
-899 -1285 MP
8 7 R 9 4 R 6 X -8 -8 R -8 -3 R -7 X ST
-934 -1292 MP
9 -4 R 
-7 4 R W ST
-942 -1302 MP
9 X 9 -2 R -8 -4 R -10 2 R v ST
-953 -1300 MP
9 3 R 12 -1 R 
-8 -2 R -5 -5 R -8 5 R ST
-994 -1333 MP
11 -3 R -2 -9 R -6 -3 R -3 13 R 
u ST
-892 -1361 MP
7 -4 R -7 1 R U ST
-1082 -1386 MP
18 -5 R -7 -4 R -10 3 R -1 6 R ST
-1105 -1376 MP
9 -4 R 
8 -4 R -7 -7 R -9 2 R -3 8 R 2 5 R ST
-1121 -1337 MP
9 -5 R 3 -13 R 
9 -11 R -9 Y -8 4 R -8 8 R -1 10 R -4 8 R -1 8 R ST
-1122 -1370 MP
6 -5 R 
-6 4 R ST
-1118 -1381 MP
4 -7 R -4 7 R ST
-1164 -1375 MP
14 -2 R 9 -2 R 6 -8 R -8 2 R 
-8 3 R -8 3 R -5 4 R ST
-936 -1378 MP
9 2 R 9 -1 R -8 Y -8 -3 R -9 X 
-1 8 R u ST
-1009 670 MP
7 8 R 7 8 R 19 5 R -3 -14 R -3 -8 R -2 -9 R 
-2 -13 R -1 -9 R -6 -7 R -9 4 R -4 8 R -3 10 R -1 17 R 
ST
-942 762 MP
12 -5 R -1 -9 R -11 14 R ST
-1026 1236 MP
7 11 R 10 3 R -4 -7 R 8 5 R 
8 2 R 6 -8 R -1 -8 R -5 -11 R -8 -4 R -9 2 R -8 5 R 
-4 10 R ST
-976 1499 MP
6 Y 0 7 MB
-945 1506 MP
-7 -8 R -5 -13 R -3 -22 R -4 -7 R -6 8 R -2 8 R 
-1 15 R -1 8 R w ST
-828 1503 MP
12 -5 R -8 X -4 5 R ST
-113 1199 MP
-8 3 R 8 -3 R ST
10 1168 MP
-10 3 R 
-13 2 R 12 -1 R 8 -3 R 5 -2 R ST
203 1190 MP
-11 9 R -13 -2 R -11 -2 R 
8 3 R 8 1 R 8 1 R 8 -4 R 3 -6 R ST
206 1185 MP
3 -5 R -3 5 R 
ST
218 1173 MP
4 -4 R ST
230 1165 MP
13 -8 R 9 -3 R -8 2 R -9 5 R -5 4 R ST
251 1142 MP
2 -10 R 
2 -7 R -3 8 R -1 8 R ST
271 1107 MP
11 -11 R -7 5 R -4 6 R ST
322 1082 MP
ST
777 1014 MP
13 7 R 
9 5 R 12 7 R -10 -7 R -8 -4 R -8 -4 R -8 -4 R ST
946 1060 MP
5 -1 R 
ST
958 1057 MP
13 -4 R 16 -10 R -8 4 R -9 4 R -10 4 R q ST
997 1035 MP
ST
1002 1030 MP
ST
1007 1021 MP
3 -5 R ST
1012 1014 MP
1 -5 R 
ST
1013 990 MP
5 3 R ST
1019 986 MP
ST
1020 982 MP
5 -1 R ST
1027 976 MP
ST
1031 970 MP
ST
892 920 MP
3 9 R 1 -8 R -5 -1 R ST
681 728 MP
6 -8 R 6 -13 R 
-3 8 R -9 13 R ST
648 609 MP
2 -13 R 3 -16 R -2 8 R -3 8 R 12 Y ST
668 516 MP
1 -12 R 
ST
673 489 MP
-1 -8 R 1 8 R ST
691 474 MP
9 1 R -8 -1 R -5 -2 R ST
683 447 MP
3 -5 R ST
734 296 MP
4 -8 R 
-4 -9 R -5 7 R 4 10 R ST
755 105 MP
8 -5 R 6 -9 R -7 6 R -4 7 R 
A ST
820 16 MP
2 -5 R ST
827 6 MP
7 -7 R 9 -13 R -7 5 R -8 14 R ST
847 -21 MP
10 -7 R -9 2 R 
-1 5 R ST
868 -35 MP
13 -8 R 9 -5 R 13 -5 R -8 X -8 4 R -6 5 R -8 3 R 
-5 6 R ST
914 -56 MP
30 1 R 13 4 R 29 6 R -8 -1 R -10 -3 R -8 -3 R 
-8 -2 R -8 -1 R -8 -1 R -12 -1 R -10 1 R ST
-580 1471 MP
9 1 R -7 -3 R 
q ST
-532 1408 MP
8 2 R 6 -5 R -8 -3 R -6 5 R ST
-298 1384 MP
9 1 R -8 -1 R ST
-295 1355 MP
8 X 5 -8 R 
-8 2 R -5 6 R ST
-247 1294 MP
7 -8 R 10 -12 R 6 -7 R 6 -13 R 5 -9 R 
7 -13 R 5 -9 R 7 -8 R 3 -9 R 3 -10 R -7 -3 R -8 3 R 
-4 10 R -8 4 R -5 13 R -3 10 R -4 7 R -3 8 R -2 9 R 
-7 6 R -7 6 R 13 -5 R -4 7 R -5 14 R -5 8 R ST
-477 731 MP
9 3 R 
9 -3 R 6 -9 R -9 7 R 5 -8 R 3 -8 R -3 -9 R -3 -13 R 
-3 -9 R -1 -18 R -2 -9 R -5 4 R -3 11 R 7 8 R -3 8 R 
-7 8 R 1 7 R 2 8 R -7 6 R 8 9 R -4 7 R ST
-472 648 MP
9 1 R 
-5 -6 R -4 5 R ST
-478 633 MP
11 6 R -4 -12 R -7 6 R ST
-489 617 MP
8 6 R 4 -7 R 
-8 -6 R -4 7 R ST
-439 544 MP
7 -4 R -9 2 R e ST
-398 474 MP
9 -4 R 11 -3 R 11 -3 R 
-2 -7 R -11 2 R -8 3 R -8 6 R -2 6 R ST
-586 516 MP
6 -5 R -6 1 R 
v ST
-541 411 MP
8 -7 R 8 -6 R 9 -5 R -7 -2 R -2 -9 R -10 3 R -9 7 R 
-5 8 R -2 9 R 4 11 R 2 -8 R S ST
-599 382 MP
10 -8 R 6 -9 R 7 -7 R 
1 -9 R -7 4 R -6 9 R -7 9 R -4 8 R U ST
-651 411 MP
6 -6 R -8 Y -6 4 R 
-1 8 R u ST
339 -1297 MP
10 1 R -10 -3 R u ST
306 -1288 MP
11 10 R -4 -10 R -8 -1 R ST
306 -1347 MP
ST
245 -1354 MP
6 13 R 
3 -8 R -4 -6 R -5 1 R ST
245 -1369 MP
8 2 R -4 -7 R -4 5 R ST
240 -1381 MP
-1 -5 R 
ST
-773 -1224 MP
7 -3 R 9 X 9 -1 R 5 7 R -4 -8 R -10 X -7 -5 R -9 7 R 
U ST
-943 -84 MP
4 -9 R 3 -9 R 9 -1 R 9 3 R 7 7 R 8 6 R 9 2 R 
6 8 R 9 5 R 10 3 R 10 5 R -1 6 R -13 1 R 5 11 R 
9 -3 R -7 7 R 5 6 R 11 4 R 9 -3 R 16 5 R -8 2 R 
-7 6 R 5 9 R 8 X 8 -4 R 9 -4 R -1 7 R -2 8 R 7 -6 R 
9 -7 R 14 -2 R 14 -1 R 12 1 R 9 2 R 3 9 R -5 7 R 
-8 -1 R -11 2 R 7 8 R -12 1 R -10 -1 R -8 -1 R -6 3 R 
-7 2 R -10 -4 R -7 -6 R -8 -2 R -7 -5 R -10 -2 R ST
-847 -8 MP
-6 -6 R 
-14 -4 R -9 -4 R -11 -1 R -14 -3 R -17 -6 R -9 -6 R -20 -1 R 
-9 -4 R -9 -3 R -9 -3 R -10 -7 R -15 -3 R -9 -3 R -6 4 R 
-5 6 R 3 -9 R -12 Y -9 3 R -5 6 R -6 8 R -8 -5 R 7 -7 R 
8 -4 R 8 -2 R 8 -2 R 7 3 R 6 6 R 8 6 R -12 -17 R 
-3 -21 R 5 -6 R 8 -1 R 10 -2 R 8 -3 R 7 -5 R 8 -1 R 
8 1 R 9 6 R 1 8 R -1 8 R 2 10 R ST
-999 -298 MP
9 -4 R -1 -9 R 
-8 1 R -2 9 R J ST
-1037 -155 MP
4 9 R 7 -4 R 3 -9 R 8 4 R 8 2 R 
-4 7 R -6 6 R 1 6 R 9 -5 R 3 -5 R 5 -7 R 5 -7 R 
9 3 R 10 4 R 9 2 R 7 5 R -5 9 R -5 8 R 24 -4 R 
-10 -5 R 4 -8 R 1 -8 R -4 -9 R -5 -7 R -5 -5 R -6 -8 R 
-6 -8 R -7 4 R 3 8 R -8 X 7 Y -4 7 R -8 -3 R -6 -1 R 
-4 8 R -4 -13 R 2 7 R -8 1 R -8 1 R -8 X -1 8 R ST
-954 -171 MP
5 8 R 
4 9 R 5 9 R 9 4 R 9 X 13 2 R 8 -3 R 9 -2 R 13 -4 R 
12 3 R 11 -3 R 5 4 R 9 4 R 4 -9 R -10 -5 R -9 2 R 
-10 -1 R 14 -4 R -7 -5 R -12 -1 R -8 1 R -11 -1 R -13 8 R 
-8 X -8 -2 R -8 -1 R -7 -6 R 9 -1 R 10 -4 R -9 -3 R -19 -4 R 
5 -5 R 9 -1 R -6 Y -4 -9 R -16 -3 R -4 7 R 3 7 R -3 8 R 
7 Y ST
-849 -118 MP
9 4 R 13 2 R 9 4 R -8 X -13 -3 R 8 Y 9 1 R 16 5 R 
9 1 R 6 -4 R 13 -2 R 3 9 R 10 12 R 13 8 R 8 6 R 
12 -1 R 7 -8 R 2 -10 R -3 -7 R -10 -1 R -8 X -8 -3 R -8 -2 R 
-8 -3 R -10 -4 R -7 -5 R -8 -3 R 8 7 R -7 1 R -7 -3 R 
-6 -7 R -8 -1 R -12 -2 R -4 -5 R 2 -9 R -8 -3 R -7 4 R 
4 8 R -3 6 R ST
-1086 -8 MP
3 -9 R 6 -6 R 5 -15 R 5 -5 R -9 Y 8 -7 R 
-4 -7 R -9 13 R -3 11 R -4 10 R -4 8 R -3 8 R -1 8 R 
ST
-1108 -32 MP
7 -7 R 8 -5 R 4 -9 R -6 X -7 5 R -6 7 R -1 10 R ST
-1179 19 MP
2 -8 R 
1 -9 R -2 -4 R 0 -21 MB
-714 90 MP
14 3 R 6 9 R 6 -4 R 8 8 R 17 9 R 
-4 -8 R -5 -4 R -7 -2 R 2 -11 R 7 -10 R 4 10 R 4 7 R 
2 7 R 3 9 R 6 -5 R 3 -7 R 7 -7 R 7 -7 R -9 Y -8 -7 R 
7 -13 R -8 X -8 -1 R -5 6 R -3 11 R -9 -5 R -7 4 R -6 7 R 
-5 7 R -8 Y 7 -8 R -1 -6 R -9 -2 R 3 14 R -8 X -2 8 R 
-3 5 R -10 -3 R -7 X i ST
-831 -885 MP
5 -1 R ST
-963 -946 MP
7 8 R 6 -3 R -10 -4 R B 
ST
-1040 -985 MP
9 4 R 13 6 R 21 7 R 7 5 R 4 -7 R -16 -2 R -8 -3 R 
-10 -4 R -8 -2 R -10 -4 R W ST
-882 -960 MP
9 -11 R 13 -3 R 12 2 R 9 -4 R 
-8 1 R -10 -2 R -8 2 R -8 2 R -8 6 R -1 7 R ST
-816 -994 MP
9 -3 R 
11 -1 R 9 3 R -7 -5 R -14 1 R -8 4 R ST
-738 -1012 MP
23 -9 R -8 -1 R 
-7 5 R -8 4 R ST
-1032 -245 MP
9 1 R 3 -9 R -9 2 R -3 6 R ST
-953 1060 MP
8 -6 R 
8 -6 R -4 7 R -7 6 R 10 -3 R 9 -5 R 9 -5 R 12 -6 R 
-8 1 R -7 5 R -8 2 R 2 -7 R 9 -4 R 9 -3 R 9 -4 R 
17 -3 R 13 4 R 11 2 R 8 -7 R -13 2 R -10 -2 R -10 -1 R 
8 -5 R 13 -4 R -12 1 R -21 1 R -8 2 R -7 -2 R -7 4 R 
-13 8 R -13 9 R -7 11 R 8 -7 R -7 9 R -1 6 R ST
-1041 1250 MP
9 X 16 3 R 
7 7 R 13 -3 R 12 -9 R 9 X 9 1 R -8 -3 R -8 -7 R -8 -14 R 
-7 -8 R -8 -2 R -12 -4 R -6 -8 R 10 Y -8 -3 R 12 7 R -7 6 R 
-3 9 R -10 4 R -9 -4 R 8 6 R 8 3 R 1 8 R -8 1 R 
W ST
-241 530 MP
10 1 R 9 1 R 24 -1 R 9 -2 R 17 -7 R 9 -3 R 12 -10 R 
9 -13 R 3 -11 R -3 -10 R -8 -7 R -14 -4 R -10 -7 R -8 -4 R 
-22 -1 R -11 1 R -10 -5 R -8 -2 R ST
828 1002 MP
7 8 R 11 4 R 8 -4 R 
9 -2 R -2 -9 R -8 -7 R -4 -7 R -7 4 R -14 8 R 4 Y ST
601 716 MP
8 X 
-2 -11 R -1 8 R -5 3 R ST
524 687 MP
13 -2 R 8 5 R -7 -6 R -17 3 R 
E ST
338 520 MP
1 9 R 2 9 R 6 13 R -8 Y -3 -8 R -3 -16 R 1 -5 R ST
342 734 MP
8 2 R 
13 -10 R -7 4 R -10 -2 R -2 6 R W ST
192 466 MP
9 5 R 19 8 R 13 3 R 
9 4 R 9 1 R 9 -3 R -7 X -8 1 R -8 -3 R -4 -6 R -9 1 R 
-9 -2 R -8 -3 R -8 -4 R -8 -5 R U ST
-436 1037 MP
9 X 15 -14 R 8 -7 R 2 8 R 
4 7 R 11 -3 R 11 2 R 9 2 R 4 -8 R 7 -8 R 9 -5 R 
10 -12 R -1 -9 R 6 -17 R -9 Y -3 -9 R -9 Y 2 -9 R 1 -9 R 
6 -17 R 9 -17 R ST
-316 893 MP
5 -8 R 3 -9 R 1 -9 R -3 -9 R -8 1 R 
-9 4 R -7 4 R -7 7 R -8 7 R -7 7 R -4 8 R -3 9 R 
-5 13 R -4 9 R -3 9 R -5 15 R -1 6 R -1 13 R 6 8 R 
-4 9 R -9 X -5 -7 R -1 -8 R 2 -8 R 5 -7 R -7 8 R -5 13 R 
7 Y 6 2 R -8 7 R -5 9 R -6 9 R -11 17 R -10 7 R h ST
-237 770 MP
-11 11 R 
-5 8 R -2 13 R 9 Y 1 9 R -2 24 R -5 -12 R -11 11 R -5 13 R 
-4 9 R -3 13 R -2 10 R -1 9 R -7 4 R -9 -7 R 4 9 R 
14 5 R 7 -5 R 13 -9 R 7 -6 R 8 -6 R 6 -7 R P ST
-269 725 MP
-9 -5 R 
-9 -3 R -17 -6 R -25 -8 R -7 -8 R -1 -9 R 6 -11 R 10 -7 R 
12 -7 R 8 -4 R -1 -10 R -7 -7 R -16 2 R -3 8 R -8 6 R 
-12 4 R -7 6 R -9 -1 R -9 -1 R -14 -2 R -8 -5 R -9 -4 R 
-5 6 R -13 -9 R -3 -9 R -3 -9 R -4 -13 R -5 -7 R -5 -9 R 
-3 -15 R -10 Y -9 Y ST
-445 569 MP
12 -3 R 11 3 R 6 -5 R 11 -10 R 9 2 R 
19 -2 R -8 -2 R 9 -4 R -8 -2 R -8 X -7 1 R 5 -7 R 9 -4 R 
11 -13 R 10 -5 R 9 X 9 -1 R 16 -3 R 12 -6 R 9 3 R 9 2 R 
12 -3 R 10 3 R 9 3 R 9 5 R 9 5 R 9 4 R ST
-233 446 MP
-11 -1 R 
-9 -2 R -9 2 R -9 1 R -10 3 R -13 -2 R -14 2 R -7 5 R 
-9 X -22 2 R -9 3 R -10 -2 R -8 Y 7 -6 R 9 -6 R 8 -6 R 
-9 -2 R -9 3 R -9 3 R -6 7 R -11 3 R -9 4 R -19 8 R 
-9 4 R -9 5 R -8 3 R 10 2 R -6 7 R -5 7 R -1 7 R 
14 -6 R -7 7 R -5 8 R ST
-440 502 MP
-10 4 R -2 9 R -3 11 R -5 11 R 
-6 7 R 1 12 R 5 12 R 6 8 R -8 6 R -1 7 R -2 9 R 
-5 18 R -8 -7 R -6 -5 R -9 -4 R -8 -5 R 4 -6 R -8 Y 2 -9 R 
-1 -10 R -13 -2 R -6 -4 R 2 -10 R 6 -14 R 1 -8 R 2 -13 R 
1 -6 R ST
-504 505 MP
17 -19 R -8 Y 1 -9 R -1 -9 R 1 -9 R -5 -5 R -6 -7 R 
-8 -7 R -5 -9 R -1 -9 R 3 -10 R 4 -9 R -8 -3 R -11 -9 R 
-4 -7 R 8 -7 R 7 -9 R 7 -7 R 4 -13 R 2 -9 R 4 -8 R 
8 -7 R 8 -17 R d ST
-478 297 MP
-3 -13 R 3 -9 R -17 3 R -7 -5 R 4 -8 R 
5 -12 R 5 -9 R 4 -8 R 2 -9 R -5 -13 R -7 7 R -6 8 R 
-7 7 R -7 7 R -8 6 R -12 9 R -7 7 R -7 8 R -6 7 R 
-5 8 R -3 8 R -16 28 R -5 5 R ST
-583 330 MP
-6 8 R -9 6 R -20 4 R 
-5 9 R 7 Y 10 -3 R -2 7 R -9 3 R -12 3 R -12 3 R 4 7 R 
8 X 7 -6 R 8 -3 R -6 9 R -6 8 R -9 2 R -7 -6 R -11 5 R 
3 9 R 2 11 R 4 9 R 2 10 R 1 9 R -1 11 R -3 9 R 
2 9 R 4 7 R 5 2 R ST
-642 480 MP
9 5 R 9 3 R 9 6 R 8 5 R 
8 7 R 3 9 R -1 14 R -5 17 R 5 8 R 9 -1 R 13 X 6 8 R 
7 10 R 9 1 R 9 -3 R 9 -2 R 3 12 R 4 10 R 4 -8 R 
6 3 R 8 -1 R 9 5 R -5 12 R 5 6 R 10 5 R 1 18 R 
v ST
-491 632 MP
1 9 R 2 13 R -2 14 R -1 9 R -2 17 R 2 13 R -1 26 R 
5 9 R 4 37 R 13 9 R 4 8 R 13 5 R -2 8 R 2 8 R 
9 -3 R 7 3 R 10 12 R 8 7 R 4 7 R ST
-414 844 MP
-5 -14 R 4 -8 R 
6 4 R 17 2 R -1 -12 R -2 -9 R -3 -8 R -4 -9 R 4 -7 R 
-9 -5 R -7 -8 R -6 -9 R -8 -4 R -5 -5 R 1 -9 R 8 3 R 
7 6 R 5 6 R 10 6 R 11 2 R 13 -4 R 8 -7 R 9 -1 R 
15 -4 R 9 2 R 9 1 R 9 2 R 9 2 R 17 -4 R 7 -8 R 
12 -8 R 5 -11 R ST
-595 -309 MP
5 13 R 13 4 R 11 5 R -7 3 R 2 7 R 
9 1 R 9 X 7 19 R -2 17 R -1 10 R 7 -4 R -1 -8 R 2 -8 R 
-8 Y -3 -8 R -5 -14 R -8 2 R -5 -5 R -4 -8 R -7 -4 R -10 X 
-7 -8 R -1 -6 R ST
-209 698 MP
-7 5 R -1 19 R -7 10 R -7 -6 R -5 -7 R 
-8 -5 R 8 -3 R 7 -5 R 8 X 6 -7 R 8 -3 R 6 X ST
-240 872 MP
19 -24 R 
12 -17 R 10 -19 R 20 -23 R 8 -7 R 5 -9 R 3 -18 R 5 -9 R 
3 -9 R -5 -8 R 4 -9 R 1 -9 R -4 8 R -3 8 R 1 -14 R 
-4 -9 R -3 -8 R -1 -9 R -13 2 R -8 5 R -8 2 R l ST
-209 698 MP
13 5 R 
2 11 R -2 15 R -8 5 R -15 20 R -11 10 R -7 6 R ST
-652 954 MP
12 -8 R 
1 9 R 3 9 R 13 -4 R 9 2 R 2 9 R 2 -8 R -7 -6 R 
-5 -7 R -7 -5 R -15 4 R -8 4 R ST
-754 373 MP
11 11 R 9 5 R 7 -5 R 
8 2 R 9 3 R 9 -1 R 7 -4 R 5 -6 R -8 -5 R 8 -6 R 
-4 -8 R -9 5 R 6 -8 R -3 -9 R -1 7 R -8 -3 R -8 -8 R 
-2 8 R -6 1 R -15 2 R -9 3 R -3 7 R 3 9 R -6 X ST
-245 275 MP
8 4 R 
-7 -4 R l ST
-258 268 MP
5 1 R ST
-270 269 MP
5 -2 R ST
-285 265 MP
6 X ST
-330 199 MP
1 9 R 8 7 R -6 -7 R -1 -8 R 
p ST
-536 109 MP
5 7 R 4 -9 R -9 2 R ST
-533 94 MP
5 -3 R ST
-537 79 MP
ST
-527 76 MP
ST
-282 -145 MP
9 X 9 -5 R 10 7 R 8 5 R 
14 14 R 8 8 R 5 9 R -8 Y -5 -7 R -8 -6 R -7 -6 R -7 -8 R 
-8 -3 R -8 -7 R -8 3 R -7 4 R -5 -1 R ST
-480 -204 MP
13 6 R 18 -1 R 
9 -1 R 12 4 R 9 4 R 12 2 R 10 -5 R 8 7 R 23 -3 R 
6 -2 R 11 -3 R 7 -7 R 9 -4 R 8 4 R 5 2 R -4 -8 R 
-18 -5 R -1 -9 R 1 -9 R -5 9 R 1 7 R -5 6 R 1 7 R 
-4 5 R -9 5 R -9 2 R -8 X -5 -7 R 1 -8 R -3 11 R -7 1 R 
-6 -6 R -7 5 R -7 3 R -8 -5 R -10 -5 R -10 -3 R -8 4 R 
-8 1 R -8 -1 R -8 X -6 -8 R 4 Y ST
-591 -310 MP
5 -12 R 2 -12 R -4 -11 R 
-6 7 R 7 7 R -4 10 R -3 8 R w ST
91 -769 MP
9 -3 R 7 -8 R 8 -7 R 
12 -10 R 9 -1 R 3 -13 R 5 -9 R -1 -9 R -11 Y -7 3 R 6 7 R 
-7 4 R -2 5 R 5 7 R -3 8 R -10 10 R -10 2 R -4 8 R 
-6 7 R -8 4 R -6 6 R ST
144 -1004 MP
10 -1 R 9 -5 R 9 X 9 4 R -4 6 R 
-1 11 R 8 7 R 9 4 R -8 -5 R -6 -7 R -4 -5 R 8 -6 R 
-3 -9 R -6 -9 R -3 -9 R 4 -8 R -6 2 R -4 20 R -8 2 R 
-8 3 R -5 5 R ST
210 -1035 MP
9 X -8 -1 R ST
287 -1034 MP
8 5 R 8 7 R -6 -7 R -7 -6 R 
-5 1 R ST
-253 -1354 MP
8 -1 R -1 -9 R -7 9 R ST
-294 -749 MP
5 -1 R ST
-289 -832 MP
7 -1 R 6 -8 R 
-7 4 R -6 5 R ST
-270 -872 MP
ST
-572 -1095 MP
5 -1 R ST
434 -628 MP
5 -1 R ST
451 -636 MP
10 -2 R -10 2 R ST
-37 -502 MP
ST
-193 -854 MP
9 -1 R 
9 8 R 13 2 R 4 9 R 14 9 R 5 -1 R -8 -4 R 14 -1 R 
8 -4 R 2 -8 R -9 -3 R -10 -3 R -7 -4 R -4 -5 R -12 -2 R 
-10 -3 R -8 -1 R -7 4 R -4 7 R ST
-577 -559 MP
5 11 R -3 9 R -3 8 R 
-1 8 R 2 10 R -4 11 R -3 15 R -7 7 R -5 8 R 14 3 R 
11 3 R 10 -4 R -8 2 R -8 -2 R -8 -5 R 8 -7 R -1 -8 R 
4 -6 R -1 -12 R -2 -8 R 2 -8 R -2 -8 R 5 -7 R 7 -8 R 
-10 -4 R -2 -8 R ST
122 -358 MP
-1 -5 R ST
-403 -740 MP
6 X ST
-533 -738 MP
9 4 R 9 1 R -10 -4 R -8 -1 R 
ST
1004 -41 MP
11 -1 R 11 -2 R 11 -4 R 19 -10 R 9 -5 R 9 -3 R 49 -12 R 
12 -1 R 10 -1 R 13 -1 R 8 -5 R 5 4 R 5 1 R 174 -41 MB
1179 -661 MP
-8 -6 R 
-10 -3 R -17 -12 R -8 -5 R -9 -3 R -10 -7 R -12 -10 R -11 -13 R 
-8 -6 R -7 -7 R -10 -12 R 4 8 R 6 7 R -5 5 R -1 -9 R 
-8 -7 R -2 -7 R -7 -8 R -13 1 R -9 2 R 7 -4 R -5 -8 R 
-13 -5 R 6 6 R -1 8 R -7 -5 R -5 -9 R -4 -6 R -9 -8 R 
-5 -9 R -8 -6 R -9 -5 R 4 -7 R -2 -8 R -4 5 R -6 9 R 
-7 5 R 6 -8 R 5 -8 R -5 -7 R -3 -8 R -6 -5 R -9 -1 R 
-13 2 R -7 7 R -8 5 R -4 7 R 8 3 R -11 -2 R -5 -4 R 
-13 -5 R -8 -7 R -3 -10 R -1 -9 R C ST
885 -853 MP
-9 -3 R -10 -3 R -9 X -3 -12 R 
-10 -13 R -9 -4 R -7 -4 R -9 -1 R -8 1 R -11 X -8 -5 R 2 -10 R 
-7 -6 R -11 -15 R -19 -9 R -9 -5 R -9 -10 R -16 -9 R -9 -2 R 
-10 -7 R -8 -4 R -22 -5 R -6 -5 R -18 -3 R -13 -6 R -9 -5 R 
-9 1 R -11 2 R -7 -6 R -13 1 R -9 -5 R -11 -4 R -15 3 R 
-8 1 R -13 3 R -5 -8 R -3 -10 R -4 -8 R -4 -6 R ST
516 -1034 MP
-13 X -6 -10 R 
4 -8 R -3 -14 R -11 -11 R -11 -11 R -10 -11 R -3 -5 R 7 4 R 
8 2 R 9 -4 R 8 -3 R 10 -3 R 8 -2 R 16 4 R 17 1 R 
9 -1 R 9 1 R 25 -5 R 9 3 R 11 8 R 8 1 R 4 8 R 
8 5 R 8 5 R 8 6 R 8 6 R 10 6 R 8 2 R 13 1 R 
5 4 R 5 7 R 5 3 R 6 5 R 14 1 R 8 2 R 3 9 R 
9 X 9 3 R 19 1 R 9 -1 R 12 6 R 7 8 R 8 7 R 9 X 
9 3 R 10 5 R 6 9 R U ST
837 -985 MP
8 -5 R 11 5 R 17 3 R 3 7 R 
-7 -4 R -13 -4 R 2 8 R 8 7 R 9 2 R 9 5 R 13 1 R 
17 2 R 10 -2 R 21 3 R 9 3 R 7 8 R 9 1 R 13 2 R 
13 5 R 8 5 R 11 3 R 9 -3 R 17 -3 R 15 3 R 7 8 R 
3 9 R -4 5 R -6 5 R 9 5 R 13 8 R 4 7 R 9 1 R 
10 7 R 9 -1 R 7 8 R 8 7 R 9 2 R 9 -4 R 8 -4 R 
4 -7 R 4 -8 R 6 -7 R 3 -8 R -8 Y -8 -4 R -8 -1 R -17 -1 R 
-8 -3 R -10 -3 R -8 -4 R -4 -8 R -7 -8 R -14 -8 R -8 -8 R 
-7 -4 R -7 -6 R -7 -9 R -6 -7 R -8 -6 R -9 -7 R -8 -2 R 
-2 -10 R -10 -2 R -8 -5 R -4 -8 R -10 2 R -8 X -9 2 R -10 5 R 
-12 2 R -10 1 R -8 -1 R -8 -1 R -10 -3 R -7 -4 R g ST
907 -1020 MP
-9 -1 R 
-6 -8 R -6 -8 R -6 -8 R -9 -6 R -7 -7 R -11 -11 R -9 4 R 
-9 3 R 8 -6 R 1 -9 R -2 -9 R 1 -9 R -13 -8 R -7 -7 R 
-5 -8 R -8 -5 R -3 -9 R -7 -8 R -9 X -8 -4 R -7 -8 R -9 -5 R 
-9 -8 R -9 -4 R 2 8 R 3 8 R 4 7 R 2 8 R -3 10 R 
9 7 R 4 10 R -7 -6 R -13 -2 R -5 8 R -9 6 R -9 -1 R 
-8 6 R -13 -1 R -7 -5 R -9 -5 R -9 -4 R -8 -7 R -9 -3 R 
-8 -5 R -13 -9 R -7 -8 R -2 -7 R ST
633 -1154 MP
-8 -5 R -7 -8 R -8 -6 R 
-8 -6 R -17 -3 R -13 3 R -16 -5 R -5 -6 R -9 3 R -10 1 R 
-11 -3 R -8 -6 R -8 -2 R -9 2 R -9 -4 R -9 -3 R -8 -6 R 
-10 X -9 4 R -8 -2 R -9 -4 R -8 -4 R -16 -4 R -11 -4 R -9 X 
-10 -2 R -9 -2 R -9 3 R -6 X ST
1060 1481 MP
3 14 R 4 7 R 1 -8 R -3 -9 R 
-5 -4 R ST
1096 1506 MP
8 -5 R -10 4 R -2 0 MB
1071 1506 MP
-1 0 MB
1066 1506 MP
0 0 MB
1071 1488 MP
10 -3 R -8 3 R W ST
1013 1404 MP
8 5 R 8 6 R 
8 7 R 10 4 R -1 -8 R 6 9 R 4 14 R 4 6 R -8 -6 R 
-3 -8 R -5 -6 R -10 -4 R -13 -11 R -7 -6 R k ST
1003 1434 MP
2 -5 R ST
971 1447 MP
6 Y 5 -5 R 
-5 -1 R ST
947 1366 MP
1 -5 R 20 18 R 9 6 R 1 9 R -7 -4 R -6 -7 R 
-4 -7 R -7 -6 R -7 -4 R ST
1034 1385 MP
1 5 R ST
1024 1357 MP
4 11 R 7 12 R -2 -7 R 
-3 -8 R -4 -8 R W ST
1002 1238 MP
8 X 9 2 R -8 3 R 2 7 R 11 4 R 13 1 R 
5 -7 R -8 4 R 3 -10 R -7 -6 R -11 -9 R -7 4 R -9 7 R 
ST
942 1192 MP
5 15 R 8 5 R 15 14 R 9 4 R 12 1 R 12 -12 R -3 -9 R 
-4 -7 R -2 -8 R -6 -8 R -7 4 R 5 10 R -14 -7 R -8 3 R 
-15 -3 R -7 -2 R ST
1013 1228 MP
3 -5 R ST
943 1239 MP
-3 9 R 6 -4 R -2 -6 R l ST
896 1280 MP
8 13 R 
3 11 R 4 10 R 5 9 R 8 4 R 14 2 R 12 -3 R -4 -7 R 
-7 8 R -10 -2 R -11 -3 R -4 -7 R -6 -7 R -1 -10 R -4 -10 R 
-1 -8 R -6 X ST
816 1183 MP
-4 11 R 3 20 R 12 17 R 2 10 R 7 5 R 9 5 R 
5 -7 R 13 -1 R 10 2 R 5 -4 R -5 -7 R -10 3 R -8 X -15 -2 R 
-8 3 R -3 -8 R -4 -6 R -4 -6 R -6 -7 R -1 -21 R 2 -7 R 
ST
844 1122 MP
4 9 R -4 12 R -10 4 R 2 9 R -3 12 R -3 12 R 1 8 R 
7 -14 R 2 -8 R 4 -8 R 5 -10 R 6 -8 R -3 -8 R -7 -9 R 
d ST
1178 866 MP
-3 9 R -10 12 R 1 7 R -7 8 R -3 13 R -1 9 R -4 9 R 
-6 8 R -7 19 R -2 9 R 1 9 R -2 9 R -1 10 R 6 4 R 
-5 9 R -9 14 R 8 -1 R 8 Y 8 Y -4 13 R -7 11 R 8 4 R 
5 11 R 1 11 R -4 9 R 1 8 R 11 Y 6 5 R 2 9 R 7 6 R 
8 11 R 6 8 R -1 19 R -3 9 R 4 14 R -3 8 R 3 9 R 
4 11 R 2 9 R 2 10 R 7 9 R u 0 389 MB
1179 1263 MP
0 0 MB
1179 1281 MP
-1 5 R 0 6 MB
1179 1002 MP
-5 -15 R 2 -12 R 
1 -9 R 1 -9 R 1 -13 R D 0 -60 MB
1137 1133 MP
3 11 R 4 6 R -2 -8 R -4 -8 R 
g ST
1141 1171 MP
-1 9 R ST
1143 1212 MP
-2 9 R 7 1 R -8 Y -4 -14 R -1 12 R ST
1150 1226 MP
-2 13 R 7 8 R 
-4 -13 R -1 -8 R ST
1153 1247 MP
6 7 R 7 4 R -3 -9 R -8 -1 R p ST
1168 1255 MP
5 21 R 
5 -2 R 10 19 MB
1179 1273 MP
-6 -15 R -4 -3 R ST
987 -815 MP
3 12 R -2 -9 R H ST
1058 -885 MP
11 4 R -7 -4 R 
-4 X ST
1038 -914 MP
9 4 R -7 -4 R W ST
997 -929 MP
12 8 R -4 -7 R -8 -1 R ST
921 -946 MP
11 -3 R -11 3 R 
ST
682 -989 MP
-1 9 R 9 2 R 9 X 8 -4 R 6 -6 R -6 -8 R -6 -1 R -8 3 R 
-8 2 R y ST
713 -1005 MP
ST
713 -1023 MP
4 4 R ST
641 -1055 MP
7 7 R 9 3 R 7 5 R 6 4 R 13 -3 R 
-9 -6 R -12 -9 R -8 -2 R -10 1 R A ST
481 -1090 MP
-6 -7 R 4 7 R E ST
627 -1352 MP
-8 5 R 
-9 -1 R 4 -6 R 10 2 R E ST
729 -1179 MP
6 Y -9 2 R -12 -3 R 8 -3 R 7 -4 R 
6 2 R ST
968 -1019 MP
10 -3 R 9 -2 R 11 -4 R 9 2 R 13 3 R -7 -6 R 
-10 X -5 -4 R -14 8 R -10 4 R -6 2 R ST
1025 -1021 MP
5 13 R 9 5 R -3 -7 R 
-7 -6 R -4 -5 R ST
740 -291 MP
-9 -2 R 9 8 R -7 7 R 7 X 1 -8 R -1 -5 R 
ST
958 -170 MP
-5 -7 R -11 -3 R -9 -2 R -8 -2 R 6 6 R 4 5 R 9 4 R 
12 -1 R r ST
1044 -61 MP
17 -3 R 25 -7 R 9 -1 R 9 -3 R 13 -2 R 17 -3 R 
9 -1 R 12 -1 R -8 -1 R -8 1 R -8 1 R -13 2 R -4 -8 R 
-4 8 R -8 2 R -8 -1 R -11 3 R -6 -6 R -14 4 R -7 -7 R 
-4 7 R -4 11 R -5 3 R u ST
-811 -1320 MP
7 8 R 10 12 R 10 12 R 9 23 R 
-4 12 R -7 4 R -18 5 R -3 9 R -8 -3 R -8 -5 R W ST
-671 63 MP
9 Y 8 7 R 
12 2 R 17 3 R ST
-617 148 MP
5 -9 R 2 -9 R -8 -12 R -4 -14 R 1 -9 R 
-9 -11 R A ST
-617 148 MP
-1 9 R 2 16 R 3 9 R 6 3 R 5 6 R 6 8 R 
-6 6 R 5 8 R 6 8 R 5 7 R 5 13 R ST
-592 260 MP
11 -17 R d ST
-592 260 MP
-1 9 R 
ST
-587 291 MP
-5 -21 R l ST
-825 -1244 MP
2 9 R 3 9 R 3 9 R 2 9 R 3 9 R 5 17 R 
2 9 R 3 9 R 2 9 R 3 9 R 2 9 R 5 17 R 2 9 R 
3 9 R 2 9 R 2 9 R 4 14 R 2 9 R 2 9 R 4 14 R 
2 9 R 2 9 R 3 11 R 2 9 R 2 9 R 3 11 R 2 9 R 
2 9 R 2 8 R 2 9 R 2 9 R 1 8 R 2 9 R 4 17 R 
2 9 R 2 8 R 2 9 R 1 9 R 3 11 R 1 9 R 3 11 R 
1 9 R 3 11 R 1 9 R 2 8 R 1 9 R 2 11 R 2 11 R 
2 9 R 1 8 R 2 9 R 1 8 R 2 9 R 1 8 R 2 9 R 
1 8 R 2 9 R 1 9 R 1 8 R 2 8 R 1 11 R 2 9 R 
1 9 R 1 8 R 1 8 R 2 9 R 1 11 R 1 8 R 2 9 R 
1 11 R 1 8 R 1 9 R 1 8 R 1 8 R 1 9 R 1 8 R 
1 9 R 1 8 R 1 8 R 1 9 R 1 8 R 1 8 R 1 9 R 
1 8 R 1 9 R 1 10 R 1 9 R 1 11 R 1 9 R 1 11 R 
1 11 R 1 13 R 1 11 R 1 12 R 1 13 R 1 12 R 1 14 R 
1 13 R 1 15 R 1 16 R 1 16 R 1 17 R 1 20 R 1 21 R 
1 23 R 1 27 R 1 33 R 1 48 R 125 Y ST
-643 63 MP
-27 X ST
-583 330 MP
-3 16 R -20 29 R 
-3 9 R 3 9 R 4 9 R 4 9 R 4 9 R 4 8 R 4 9 R 
4 9 R 6 13 R 5 11 R 8 17 R 7 15 R 5 11 R 8 17 R 
5 11 R 7 15 R 7 10 R 9 3 R 5 2 R ST
-509 572 MP
10 16 R -6 12 R 
8 4 R 11 4 R 10 7 R -1 10 R 1 13 R 8 3 R 9 -4 R 
r ST
-458 637 MP
6 13 R 5 11 R 4 9 R 5 11 R 4 9 R 8 6 R 17 5 R 
9 3 R 9 3 R 9 3 R 9 3 R 9 3 R 13 4 R 9 3 R 
9 3 R 9 3 R 9 3 R 9 X 9 -2 R 10 -2 R 10 -2 R 8 -1 R 
ST
-234 718 MP
9 -5 R 7 -8 R 8 -8 R 11 1 R 10 3 R 7 6 R 4 8 R 
4 13 R -1 10 R -6 8 R -6 7 R -6 6 R -6 7 R -6 7 R 
-6 7 R -6 7 R -6 7 R -4 9 R -3 9 R -4 9 R -3 10 R 
-3 9 R -12 20 R -25 32 R -10 12 R -5 1 R ST
-316 893 MP
-13 -6 R -6 6 R 
-11 17 R -2 10 R -2 10 R -1 9 R -6 25 R -2 10 R -2 10 R 
-2 10 R -4 8 R -13 4 R -13 4 R -7 2 R ST
-401 1013 MP
-13 9 R -11 11 R 
-9 5 R -20 12 R -11 6 R -10 12 R -7 8 R -1 8 R ST
-484 1085 MP
-1 9 R 
-11 41 R -6 21 R -7 25 R -11 41 R -5 17 R ST
-525 1239 MP
-22 3 R -4 13 R 
2 7 R -9 2 R -9 3 R -14 3 R -8 7 R -9 1 R -9 X -9 -2 R 
l ST
-643 1280 MP
-10 -1 R -13 X -9 2 R -21 6 R -9 3 R -13 4 R -7 2 R ST
-719 1372 MP
13 4 R 
9 3 R 9 3 R 9 3 R 9 3 R 9 3 R 9 3 R 15 5 R 
11 3 R 3 10 R -1 9 R ST
-599 1441 MP
5 8 R 8 7 R 7 8 R T ST
-587 291 MP
-2 9 R 
3 9 R 3 8 R -1 9 R 1 3 R ST
-268 725 MP
33 -3 R N ST
-293 905 MP
-8 -7 R F ST
-618 1277 MP
-9 -2 R 
-9 2 R -6 2 R ST
-725 1297 MP
5 10 R 7 6 R 2 5 R ST
-711 1319 MP
-8 10 R -5 8 R 
-7 8 R 3 9 R 5 8 R 5 10 R ST
-623 1422 MP
13 4 R 12 4 R -1 7 R 
4 Y ST
-316 893 MP
11 2 R ST
-1129 -1004 MP
9 6 R 7 -3 R 9 -1 R 11 4 R 7 11 R 11 6 R 
1 7 R 5 8 R 13 3 R 9 5 R 11 3 R 29 5 R 9 Y 8 6 R 
8 -4 R 11 14 R 3 5 R 10 3 R 9 5 R 9 1 R 3 6 R 
2 9 R 12 4 R 9 2 R 9 2 R 8 5 R 9 4 R 8 5 R 
7 8 R 9 3 R 9 1 R 7 7 R 13 3 R 1 9 R 9 4 R 
9 2 R 9 1 R 14 1 R 9 -3 R 9 1 R 9 -3 R 9 -1 R 
9 X 15 7 R 13 10 R 7 2 R ST
-926 59 MP
-8 7 R -17 16 R -14 13 R -8 7 R 
-19 18 R -49 36 R -33 24 R -41 30 R -29 21 R -34 25 R -252 197 MB
-1161 -228 MP
-15 X -17 1 MB
-1134 -228 MP
-20 1 R 
-7 -1 R ST
-1107 -228 MP
-20 1 R -7 -1 R ST
-1080 -228 MP
-20 1 R -6 -1 R ST
-1080 -228 MP
u 26 -1 R ST
-1026 -228 MP
-20 1 R 
-6 -1 R ST
-1002 -227 MP
-20 1 R -4 -1 R ST
-973 -228 MP
-22 1 R -6 -1 R ST
-947 -227 MP
-20 1 R -6 -1 R 
ST
-921 -228 MP
-22 1 R -4 X ST
-895 -228 MP
-22 1 R -4 X ST
-868 -228 MP
-22 1 R -4 X ST
-818 -229 MP
-22 1 R -17 1 R -10 -2 R 
ST
-792 -229 MP
-22 1 R A ST
-766 -229 MP
-22 1 R -4 X ST
-740 -229 MP
-22 1 R -4 X ST
-714 -229 MP
-22 1 R -4 -1 R ST
-688 -229 MP
-21 1 R 
-5 -1 R ST
-662 -229 MP
-24 1 R W ST
-649 -229 MP
-13 X ST
-1129 -1004 MP
-17 4 R -7 2 R -7 2 R -8 2 R -7 2 R 
A -49 12 MB
-689 -633 MP
-9 1 R -7 1 R -8 1 R -9 2 R -10 1 R -7 1 R -7 1 R 
-8 1 R -7 1 R -7 1 R -7 1 R -8 1 R -7 2 R -10 1 R 
-7 1 R -7 1 R -8 1 R -7 1 R -7 1 R -8 1 R -7 2 R 
-10 1 R -7 1 R -7 1 R -8 1 R -7 1 R -8 1 R -9 2 R 
-8 1 R -7 1 R -8 1 R -7 1 R -7 1 R -8 1 R -7 2 R 
-10 1 R -8 1 R -7 1 R -7 1 R -8 1 R -7 1 R -8 2 R 
-10 1 R -7 1 R -8 1 R -7 1 R -8 1 R -7 2 R -10 1 R 
-8 1 R -7 1 R -8 1 R -8 2 R -10 1 R -7 1 R -8 1 R 
-7 1 R -8 2 R -10 1 R -8 1 R -7 1 R -8 1 R z -489 72 MB
-671 63 MP
-69 -1 R 
-66 -1 R -67 -1 R -53 X ST
-874 764 MP
10 1 R 21 5 R 10 1 R 21 5 R 10 1 R 
21 4 R 21 4 R 21 5 R 10 1 R 17 4 R 9 1 R 17 4 R 
9 1 R 17 4 R 9 1 R 17 4 R 9 1 R 11 2 R ST
-614 814 MP
9 -1 R 
10 7 R 9 2 R 12 8 R 8 7 R 2 3 R ST
-534 921 MP
3 11 R 10 12 R 
5 9 R -2 9 R 3 8 R 8 7 R 6 8 R 16 Y 14 Y 1 9 R 
-6 7 R -6 8 R -5 7 R -3 9 R -6 8 R -2 9 R 4 17 R 
18 5 R 7 1 R 9 -4 R 5 -6 R ST
-716 1309 MP
-16 19 R -17 4 R -9 -2 R 
-9 -3 R -5 9 R -7 5 R -3 9 R 1 12 R 2 10 R -4 9 R 
-5 8 R -8 5 R ST
-564 841 MP
11 9 R 11 9 R 7 19 R 1 42 R ST
-247 2 MP
-128 X ST
-247 -5 MP
-1 107 R 
-1 41 R -1 30 R -1 27 R -1 22 R -1 21 R -1 19 R 9 Y ST
-224 -336 MP
1 19 R 
1 15 R 1 16 R 1 17 R 1 18 R 1 18 R 1 22 R 1 23 R 
1 27 R 1 32 R 26 Y ST
-433 -321 MP
1 18 R 1 16 R 1 16 R 1 16 R 1 18 R 
1 21 R 1 21 R 1 25 R 1 28 R 1 35 R 1 53 R 51 Y ST
-437 207 MP
-27 -1 R 
-14 X ST
-1178 1254 MP
7 11 R 9 1 R 9 4 R 9 -1 R 11 3 R 9 1 R -4 16 R 
-8 X -8 -2 R -7 5 R 2 8 R 7 1 R 9 1 R 12 6 R 9 4 R 
12 X 7 7 R ST
-1093 1320 MP
-11 -2 R 5 12 R 6 7 R -5 6 R 1 9 R -9 2 R 
-6 6 R 3 17 R 3 9 R 7 5 R 6 7 R 7 5 R 1 7 R 
-10 7 R -8 -7 R -16 -2 R -10 3 R -9 -3 R -9 -3 R -8 -7 R 
-9 -3 R -8 -3 R -7 3 R -86 76 MB
-1178 1418 MP
7 6 R 6 -8 R 6 -7 R 9 -3 R 
4 9 R K ST
-1126 1435 MP
4 -4 R ST
-894 760 MP
9 1 R 10 2 R ST
-810 1428 MP
5 -21 R K ST
-1144 1412 MP
4 14 R 9 6 R 
4 3 R ST
-1122 1432 MP
-3 9 R -4 9 R -4 13 R -5 13 R -5 13 R -5 11 R 
-2 5 R -28 73 MB
564 147 MP
-40 -1 R -39 -1 R -31 X ST
492 145 MP
-1 38 R -1 28 R -1 25 R -1 21 R 
-1 22 R -1 19 R -1 17 R ST
630 295 MP
-1 23 R -1 17 R -1 16 R -1 15 R 
-1 16 R -1 15 R -1 13 R u ST
323 558 MP
-1 13 R -1 10 R -1 9 R -1 9 R 
-1 9 R -1 9 R -1 9 R -1 9 R -1 9 R -2 9 R -1 13 R 
-1 9 R -1 9 R w ST
611 541 MP
-1 14 R -1 10 R -1 10 R -1 9 R -1 10 R 
-1 9 R -1 10 R -1 9 R -1 9 R -1 9 R -1 9 R -1 9 R 
-1 9 R -1 9 R -1 9 R -2 9 R 4 Y ST
162 916 MP
-1 9 R -3 13 R -1 9 R 
-3 17 R -4 17 R -1 9 R -4 17 R -1 9 R -5 21 R -2 9 R 
-1 9 R -5 25 R -8 33 R -2 9 R -3 13 R -2 9 R -1 9 R 
-2 8 R ST
-3 -189 MP
1 33 R 1 35 R 1 48 R 138 Y ST
207 -197 MP
1 33 R 1 34 R 1 47 R 
-1 173 R 16 Y ST
210 106 MP
-54 -1 R -48 -1 R -48 -1 R ST
-221 874 MP
-1 10 R -4 21 R -4 17 R 
-1 9 R -5 21 R -1 9 R -6 25 R -2 9 R -2 10 R -2 9 R 
-2 10 R -2 9 R -2 9 R -2 9 R -2 9 R -2 9 R -2 9 R 
-4 17 R v ST
-221 874 MP
-9 -1 R -9 -2 R ST
-55 863 MP
-9 -1 R -13 -2 R -17 -3 R -8 -2 R 
-9 -1 R -17 -3 R -17 -3 R -8 -2 R -9 -1 R -13 -3 R -9 -1 R 
-9 -2 R -9 -1 R -8 -2 R W ST
-55 863 MP
-1 10 R -3 13 R -1 9 R -4 17 R 
-1 6 R ST
-65 918 MP
-1 9 R -4 17 R -1 10 R -5 21 R -1 9 R -5 25 R 
-7 29 R -1 9 R -8 33 R -2 9 R -3 13 R -2 9 R U ST
-106 1114 MP
ST
-151 508 MP
-1 14 R 
-1 9 R -1 9 R -1 9 R -1 9 R -1 9 R -1 9 R -1 9 R 
-1 9 R -2 9 R -1 11 R ST
245 106 MP
-1 46 R -1 30 R -1 29 R -1 22 R 
-1 23 R -1 19 R -1 19 R -1 17 R -1 17 R -1 16 R -1 14 R 
ST
245 106 MP
-35 X ST
231 401 MP
-1 16 R -1 12 R -1 13 R -1 11 R -1 11 R -1 12 R v ST
232 393 MP
4 Y 
ST
340 358 MP
-1 18 R -1 14 R -1 14 R -1 12 R -1 14 R -1 11 R -1 13 R 
-1 11 R -1 11 R v ST
-212 0 MP
13 -5 R 8 1 R 9 4 R 4 X ST
-42 39 MP
-1 115 R -1 21 R 
-1 19 R -1 16 R -1 16 R -1 10 R -1 11 R -1 7 R ST
131 363 MP
3 6 R 
ST
205 414 MP
8 -2 R 5 2 R ST
281 386 MP
5 -9 R 13 -5 R 6 -3 R 6 -1 R 15 2 R 
11 -11 R 9 2 R 6 -8 R 4 -5 R 6 -3 R 8 1 R 9 -1 R 
7 -9 R 7 -5 R 6 X 6 -2 R 6 -5 R 7 -3 R 8 1 R 7 -4 R 
5 -5 R 18 4 R 7 4 R 9 -1 R 6 -3 R 9 -3 R 5 8 R 
8 -5 R 8 2 R 4 4 R 7 5 R 5 -4 R 5 6 R 3 5 R 
ST
533 335 MP
5 -8 R 7 -3 R 12 -2 R 11 -5 R 5 -4 R 8 -5 R 5 -2 R 
9 -3 R 9 -2 R 6 -5 R 9 1 R 10 -1 R ST
447 118 MP
-138 -1 R -13 -2 R 
-13 -2 R -13 -3 R -10 -1 R -9 -2 R -5 X ST
331 480 MP
13 6 R 19 -1 R 48 -1 R 
47 -1 R 51 -1 R 55 1 R 9 1 R 13 2 R 9 1 R 9 2 R 
11 1 R 9 1 R 9 2 R 12 1 R 9 1 R 5 1 R ST
323 558 MP
1 -17 R 
1 -13 R 1 -13 R 1 -12 R 1 -13 R 2 -10 R ST
234 359 MP
16 3 R 8 -5 R 
12 -3 R -1 11 R -1 10 R -1 10 R u ST
224 479 MP
-12 -2 R -1 9 R 1 13 R 
-1 10 R -1 9 R -1 9 R -1 13 R -1 9 R -1 9 R -2 13 R 
-1 17 R -1 15 R -1 13 R -1 11 R -2 13 R -1 9 R -1 18 R 
-1 9 R -1 10 R -1 9 R -1 9 R -1 9 R -2 10 R ST
189 724 MP
-1 11 R 
-2 9 R -1 16 R -2 9 R -1 10 R -2 9 R -1 11 R -2 13 R 
-4 13 R -1 11 R -1 23 R -1 10 R -2 9 R -1 12 R -2 13 R 
-2 13 R ST
171 837 MP
9 -1 R 9 1 R 4 -10 R 9 -3 R 6 -9 R 3 -10 R 
8 -6 R 2 -8 R 1 -9 R 5 -6 R 13 -5 R 3 -10 R 11 -11 R 
6 -13 R 5 -13 R 7 -7 R 10 -1 R 5 -8 R 6 -6 R 9 1 R 
4 X ST
308 688 MP
-1 17 R -1 9 R -3 13 R -1 12 R -2 13 R -2 13 R -1 8 R 
ST
296 773 MP
-10 21 R -6 9 R -4 9 R -1 9 R -1 9 R -2 9 R -1 14 R 
-1 9 R -1 9 R -1 9 R 4 8 R 1 12 R 8 6 R 6 5 R 
-1 9 R -3 13 R -1 11 R -2 13 R -2 13 R 4 8 R 6 8 R 
6 8 R 4 8 R 12 17 R 12 17 R 8 12 R ST
325 773 MP
6 13 R 5 8 R 
V ST
361 812 MP
7 8 R 10 15 R 4 3 R ST
583 913 MP
-2 -22 R 2 -8 R 9 -1 R 14 3 R 
7 -5 R -4 -6 R -8 -7 R 1 -16 R 1 -14 R 1 -13 R 1 -14 R 
1 -14 R 1 -13 R 1 -14 R 1 -13 R 1 -15 R 1 -14 R 1 -14 R 
-5 -7 R -9 -4 R ST
611 541 MP
14 5 R 7 8 R 9 X 8 5 R 13 -8 R ST
550 690 MP
-9 -5 R 
-9 X -9 2 R A ST
465 673 MP
-33 -9 R -21 -6 R -21 -6 R -13 -4 R -13 -4 R -13 -4 R 
-13 -4 R -9 -3 R -13 -4 R ST
2 1171 MP
3 -9 R 4 -9 R 6 -9 R 2 -9 R 
1 -7 R ST
22 1121 MP
-3 -16 R -6 -9 R -1 -9 R -4 -13 R -8 -5 R 5 -8 R 
-5 -8 R -9 1 R -7 5 R -8 4 R -11 -4 R ST
-27 1062 MP
-9 3 R -1 -8 R 
d ST
-28 1174 MP
3 -13 R 2 -9 R -1 -15 R -49 -13 R -17 -5 R -21 -2 R -6 7 R 
1 8 R ST
-56 1017 MP
10 -2 R -1 -9 R -5 -8 R -4 -9 R 2 -5 R 11 -1 R 
11 -3 R 9 -4 R 7 -8 R 8 -8 R 6 -7 R 12 -2 R 13 -5 R 
-2 -9 R -6 -8 R 5 -5 R 12 -3 R 11 -4 R 9 -2 R 9 -4 R 
21 -9 R 19 -4 R 4 -12 R 2 -9 R 6 -4 R 6 -8 R 4 -9 R 
-4 -9 R 7 -8 R 3 -9 R -3 -9 R -7 -7 R -8 -3 R d ST
109 809 MP
-3 -13 R 
-11 -11 R -13 -9 R -7 -8 R -9 X -12 -2 R ST
109 809 MP
8 -7 R 8 -7 R 8 -7 R 
7 -10 R 8 -4 R 7 -8 R 9 -5 R 6 -7 R 6 -8 R 12 -22 R 
ST
-65 918 MP
10 1 R 13 2 R 12 2 R ST
-171 684 MP
2 -9 R 1 -10 R 3 -13 R 1 -11 R 
3 -13 R 1 -11 R j ST
-163 615 MP
13 1 R 9 1 R 9 1 R 13 2 R 9 1 R 
9 1 R 9 1 R 9 1 R 9 2 R 14 1 R 9 1 R 9 1 R 
9 1 R 9 1 R 9 1 R 9 1 R 9 2 R 13 1 R 7 1 R 
ST
-144 472 MP
16 1 R 10 1 R 10 1 R 11 1 R 11 1 R 10 1 R 11 1 R 
10 1 R 11 1 R 11 1 R 10 1 R 11 1 R 11 1 R 10 1 R 
10 1 R E ST
-197 452 MP
1 -17 R 1 -11 R 1 -12 R 1 -12 R 1 -13 R 1 -13 R 
1 -17 R 1 -16 R 1 -18 R 1 -18 R ST
564 147 MP
7 8 R 17 6 R 9 5 R 
9 4 R 10 4 R 4 3 R ST
707 167 MP
9 -4 R 7 -1 R 4 2 R ST
430 -28 MP
1 7 R 
2 9 R 7 Y 2 3 R ST
622 412 MP
12 -2 R 9 -2 R 9 2 R 7 7 R 9 4 R 
9 3 R 2 5 R ST
378 -203 MP
4 9 R 8 7 R 1 9 R -2 10 R 5 8 R 
9 3 R 3 11 R 4 9 R 1 9 R 4 11 R -3 7 R 5 17 R 
5 7 R 9 4 R -3 9 R -1 9 R 8 12 R -6 10 R 9 1 R 
1 7 R -8 5 R h ST
436 -2 MP
8 12 R -6 9 R -3 9 R -1 9 R -4 10 R 
2 11 R 1 9 R -7 8 R 4 8 R 6 10 R 5 8 R 4 9 R 
6 12 R 9 Y 2 14 R ST
621 178 MP
35 -2 R 9 -5 R 16 -2 R 13 3 R 12 -4 R 
f ST
-213 -102 MP
7 8 R 8 15 R -4 8 R -2 28 R 5 8 R 3 9 R 3 9 R 
8 7 R 6 8 R 4 9 R 9 -1 R 9 2 R 33 14 R 15 5 R 
10 3 R 10 1 R 10 3 R 5 X ST
-74 33 MP
9 2 R 14 -2 R 8 5 R 9 4 R 
11 2 R 5 8 R 13 5 R 10 12 R 2 9 R 5 8 R 5 -3 R 
8 -5 R 11 X 13 9 R 8 7 R 4 8 R ST
-50 254 MP
8 6 R 7 8 R 1 3 R 
ST
-219 276 MP
10 3 R 9 4 R 3 13 R 6 7 R 11 7 R 8 7 R 7 7 R 
8 7 R 9 X 11 -4 R 9 -3 R 8 -4 R 3 -8 R 5 -7 R 2 -8 R 
3 -10 R 9 -2 R 8 5 R 9 4 R 9 -3 R 13 -4 R 6 -7 R 
10 -5 R 9 -3 R ST
-34 271 MP
9 -3 R 14 2 R 9 2 R 9 4 R 8 5 R 
7 8 R 8 7 R 6 9 R 7 7 R 9 3 R 10 2 R 5 8 R 
-4 10 R 4 9 R 7 3 R 9 -1 R 9 -4 R 9 -3 R 13 X 8 7 R 
5 8 R 4 8 R ST
21 488 MP
8 -2 R 9 -3 R 9 6 R 9 1 R 11 2 R 
9 -5 R 9 -4 R 9 -4 R 7 -8 R 18 -1 R 13 1 R ST
134 369 MP
7 9 R 
6 8 R 11 3 R 9 5 R 8 -4 R 9 5 R 9 6 R -1 8 R 
8 6 R 4 X ST
-119 851 MP
8 -4 R 13 4 R 10 -3 R 12 -1 R 14 -2 R 20 -5 R 
19 -16 R 5 -13 R 13 -8 R 20 -3 R -4 -12 R 9 -3 R 10 X 11 -4 R 
9 -4 R 1 -13 R -6 -8 R -4 -7 R -5 -7 R 6 -8 R 5 -9 R 
-6 -13 R 7 -7 R -4 -8 R -4 -15 R -3 -10 R -10 -5 R -7 -9 R 
2 -13 R 4 -10 R 11 2 R 9 -2 R 4 -8 R 4 -6 R ST
219 414 MP
5 -6 R 
5 -6 R 5 -8 R 16 -5 R 9 2 R 12 -1 R 8 -2 R o ST
54 621 MP
-1 -11 R 
9 -1 R 9 -4 R 7 -5 R 8 -5 R 5 -7 R 9 -1 R 8 -5 R 
-1 -10 R -6 -6 R 5 -9 R 9 -3 R 3 -8 R -4 -8 R 11 -13 R 
-8 Y -4 -9 R 5 -13 R -9 Y 5 -8 R 9 -11 R 9 X 8 -1 R 5 -13 R 
8 -5 R 8 4 R 9 -5 R -5 -11 R -3 -9 R 5 -11 R 9 -4 R 
3 2 R ST
-29 924 MP
-12 10 R -8 6 R -4 9 R -8 12 R 1 7 R ST
-61 969 MP
-5 7 R 
-5 7 R -5 8 R 4 9 R 2 5 R 8 7 R 5 8 R 3 11 R 
12 5 R 4 14 R 3 8 R ST
-179 1130 MP
7 6 R 9 6 R 5 8 R 5 9 R 
7 1 R 6 -7 R 4 -4 R ST
-91 1131 MP
-13 -1 R -9 1 R -7 7 R -11 10 R 
-4 1 R ST
296 773 MP
8 -4 R 13 -7 R 6 7 R 1 4 R ST
339 796 MP
9 6 R 8 6 R 
4 4 R ST
383 839 MP
5 9 R 6 9 R 9 5 R 10 7 R 4 11 R 8 7 R 
13 8 R 9 2 R 6 9 R 8 7 R 9 4 R 11 3 R 3 12 R 
U ST
550 690 MP
9 1 R 26 4 R 9 3 R 5 4 R ST
465 673 MP
20 12 R 13 3 R 8 2 R 
12 -4 R ST
-550 1254 MP
13 4 R 9 3 R 9 3 R 9 3 R 9 3 R 9 3 R 
9 4 R 13 4 R 9 3 R 9 3 R 9 3 R 9 4 R 11 2 R 
8 6 R 8 6 R 4 6 R ST
-388 1314 MP
4 -9 R 8 -7 R 7 -8 R 17 -69 R 
2 -9 R 2 -9 R 1 -8 R ST
-346 1194 MP
-9 -3 R -9 -2 R -13 -3 R -9 -2 R 
-9 -2 R -9 -4 R 4 -6 R ST
-346 1194 MP
48 -1 R 9 3 R 10 1 R 17 4 R 
11 1 R 12 6 R 7 -5 R 10 1 R ST
-295 1195 MP
-2 9 R -2 9 R -2 9 R 
1 9 R -5 8 R -6 42 R 8 3 R 8 2 R 9 3 R 17 2 R 
E ST
-315 1281 MP
-1 22 R 8 5 R 9 13 R 8 3 R ST
-231 1145 MP
5 17 R 4 13 R 3 9 R 
4 9 R 9 -1 R 9 -1 R 7 -6 R 9 -3 R 1 8 R -3 10 R 
ST
-225 275 MP
-14 3 R -5 -6 R ST
-262 269 MP
-8 -1 R ST
-275 267 MP
-9 -4 R ST
-318 221 MP
-4 -9 R -5 -7 R -3 -8 R 
ST
-478 298 MP
5 9 R 9 5 R 4 9 R 1 9 R 5 21 R 1 9 R 4 9 R 
4 9 R ST
-500 1149 MP
9 1 R 9 3 R 9 1 R 13 8 R 12 2 R 9 -2 R 
12 2 R 9 4 R 5 2 R ST
-414 -3 MP
9 -8 R 8 -5 R ST
-252 270 MP
6 1 R ST
-564 -23 MP
-9 -3 R 
-9 -3 R -9 1 R -9 X -13 X -15 -2 R -14 -3 R ST
-383 445 MP
-3 7 R -8 5 R 
-13 8 R -4 9 R 2 17 R 5 11 R 4 7 R ST
-383 495 MP
9 -4 R 10 -3 R 
ST
-329 482 MP
14 -1 R r ST
-272 478 MP
15 1 R 6 2 R ST
-225 489 MP
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-201 492 MP
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-150 495 MP
1 -13 R 
ST
-154 487 MP
5 X ST
-148 475 MP
O ST
-537 318 MP
13 -4 R 4 -1 R ST
-530 316 MP
-6 Y ST
-529 289 MP
4 -12 R ST
-507 253 MP
8 -10 R ST
-486 223 MP
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-583 334 MP
10 -3 R 
ST
-413 1171 MP
12 1 R ST
-267 1098 MP
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9 -3 R 8 -5 R 8 2 R 14 -3 R 4 X ST
-444 378 MP
2 28 R 4 9 R 8 5 R 
4 9 R 9 3 R 13 -2 R 8 Y 9 X 11 4 R v ST
-225 275 MP
5 X ST
-262 269 MP
10 1 R ST
-275 267 MP
T 
ST
-318 221 MP
9 11 R 11 9 R 7 13 R 6 7 R ST
-340 185 MP
9 11 R ST
-437 207 MP
7 -8 R 10 -13 R 
19 -7 R 4 8 R 13 2 R 9 -2 R 34 -2 R ST
-247 -5 MP
9 3 R 15 3 R 
8 -2 R T ST
-397 -17 MP
9 6 R 6 8 R 6 6 R ST
-415 -3 MP
-38 -4 R -9 -3 R -10 -3 R 
-28 -1 R -15 -1 R -16 -1 R -16 -2 R -9 -4 R -8 -1 R ST
-525 1239 MP
28 4 R 
14 -3 R 9 -6 R 6 -7 R 9 2 R 23 -1 R 11 -3 R 14 -2 R 
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-478 205 MP
-7 8 R 
ST
-93 -1274 MP
13 9 R 10 7 R 12 8 R 10 6 R 17 12 R 10 7 R 10 6 R 
13 9 R 9 6 R 13 9 R 9 6 R 9 6 R 9 6 R 9 6 R 
13 9 R 9 6 R 9 6 R 9 6 R 9 6 R 13 9 R 9 6 R 
13 9 R 10 7 R 12 8 R 10 6 R 17 12 R 10 7 R 12 8 R 
10 6 R 17 12 R 8 5 R ST
173 -993 MP
8 -6 R -8 Y -8 -5 R -2 -11 R 2 -9 R 
5 -2 R ST
178 -1035 MP
20 -1 R ST
206 -1035 MP
13 -1 R 7 1 R ST
226 -1035 MP
13 -4 R 9 -2 R 13 X E ST
264 -1041 MP
5 3 R 
ST
269 -1038 MP
13 3 R E ST
285 -1034 MP
9 4 R 9 7 R ST
303 -1023 MP
7 -8 R 4 -9 R 7 -7 R 9 -4 R 
15 -3 R 10 -7 R 3 -8 R 21 -3 R 7 4 R 7 7 R 10 -5 R 
4 -6 R -1 -6 R ST
-385 -1040 MP
-9 5 R -9 1 R -8 4 R -6 -5 R -6 -5 R 
-14 5 R -10 7 R -7 8 R -13 7 R -7 7 R -9 6 R -8 5 R 
-12 10 R -14 -2 R -8 -9 R -9 -3 R -9 -3 R -9 3 R -13 -2 R 
-9 3 R ST
-669 -928 MP
19 9 R 9 2 R 9 -1 R 10 2 R 10 9 R 33 15 R 
11 11 R 8 5 R 5 9 R 9 -4 R 9 -4 R 9 -3 R 9 -3 R 
16 -4 R 13 -3 R 8 1 R 6 8 R -4 9 R -7 8 R 8 7 R 
9 1 R 9 X 10 2 R 19 7 R 9 -2 R 5 9 R 8 6 R 9 X 
9 2 R 4 8 R -1 14 R 3 9 R -4 10 R 1 13 R 3 9 R 
-4 13 R -4 12 R 13 5 R 4 4 R ST
410 -383 MP
15 -1 R 11 -1 R 11 -1 R 
10 -1 R 11 -1 R 11 -1 R r ST
-79 -294 MP
21 -1 R 18 -1 R 17 -1 R 17 -1 R 
18 -1 R 17 -1 R 17 -1 R 18 -1 R 17 -1 R 18 -1 R 17 -1 R 
17 -1 R 17 -1 R 18 -1 R 17 -1 R 17 -1 R ST
-87 -400 MP
-16 1 R -13 1 R 
-13 1 R -12 1 R -14 1 R -12 1 R -12 1 R -14 1 R -12 1 R 
-13 1 R -12 1 R -12 1 R -14 1 R -12 1 R -13 1 R -12 1 R 
-13 1 R -12 1 R -13 1 R -13 1 R -12 1 R -13 1 R ST
-370 -376 MP
-17 1 R 
-13 1 R -13 1 R -13 1 R -12 1 R -14 1 R -13 1 R -13 1 R 
-13 1 R -13 1 R -13 1 R -13 1 R -13 1 R -13 1 R -13 1 R 
-12 1 R -13 1 R -13 1 R -14 1 R -12 1 R -13 1 R -12 1 R 
ST
532 -610 MP
9 2 R 7 4 R ST
-575 -998 MP
-4 X ST
-629 -1296 MP
-5 -10 R -5 -6 R -3 -11 R -5 -7 R -1 -7 R 
ST
-561 -1100 MP
1 -9 R -1 -9 R 3 -44 R -2 -14 R -3 -9 R 2 -9 R -2 -10 R 
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-9 -3 R -12 2 R -13 -1 R -10 -7 R -3 -5 R ST
-580 -997 MP
-9 2 R -9 2 R 
-13 3 R -9 2 R -9 2 R -9 2 R -13 3 R -9 2 R -9 2 R 
-13 3 R -9 2 R -13 3 R -13 3 R -9 2 R -9 2 R -8 2 R 
-7 1 R ST
-669 -928 MP
-9 2 R -8 1 R -9 2 R -13 3 R -13 3 R -13 3 R 
-6 1 R ST
-131 -772 MP
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-10 1 R -13 2 R -8 2 R -9 1 R -9 1 R -12 2 R -9 2 R 
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-11 1 R -8 2 R -11 1 R -9 2 R -9 1 R -9 2 R -11 1 R 
-9 2 R -9 1 R ST
-412 -727 MP
1 10 R 2 9 R 1 10 R 2 9 R 1 11 R 
1 9 R 2 13 R 2 9 R 1 11 R 1 9 R 2 9 R 1 11 R 
1 9 R 1 9 R 2 9 R 1 12 R 1 9 R 1 9 R 1 9 R 
1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 
1 9 R 1 9 R 1 9 R 1 9 R 1 10 R 1 11 R 1 11 R 
1 11 R 1 12 R 1 11 R ST
-260 -1068 MP
-9 2 R -9 2 R -8 1 R -14 4 R 
-9 2 R -9 2 R -13 3 R -8 2 R -8 1 R -37 9 R ST
-131 -772 MP
1 11 R 
2 13 R 2 13 R 2 13 R 2 13 R 2 9 R 1 11 R 1 9 R 
2 9 R 4 Y ST
-116 -666 MP
1 12 R 1 9 R 2 13 R 1 9 R 1 9 R 2 9 R 
1 12 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 
1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 10 R 
1 10 R 1 11 R 1 10 R 1 12 R 1 11 R 1 12 R 1 11 R 
1 13 R 1 12 R 1 14 R 1 14 R 1 14 R 1 15 R 1 16 R 
6 Y ST
-358 -1434 MP
5 17 R 4 13 R 4 13 R 5 17 R 6 21 R 5 17 R 6 21 R 
6 21 R 9 33 R 11 41 R 29 117 R 4 17 R 3 13 R 2 9 R 
2 13 R 9 41 R 7 29 R 1 9 R 5 21 R 2 9 R 1 10 R 
5 21 R 1 9 R 3 17 R 4 21 R 3 13 R 1 9 R 3 13 R 
1 10 R 3 13 R 1 10 R 2 13 R 2 13 R 1 7 R ST
-93 -1274 MP
-13 3 R 
-33 9 R -41 10 R -13 4 R -73 19 R -31 8 R ST
173 -993 MP
-9 1 R -17 4 R 
-9 1 R -21 4 R -21 4 R -11 3 R -9 1 R -17 4 R -9 1 R 
-17 4 R -9 1 R -17 4 R -9 1 R -21 4 R -13 3 R -9 2 R 
-9 1 R -8 2 R -13 2 R -13 3 R -9 2 R -9 1 R -10 2 R 
-17 4 R -9 1 R -13 3 R -9 2 R -9 1 R -17 4 R -9 1 R 
-17 4 R -10 2 R A ST
562 -759 MP
-11 1 R -9 1 R -9 2 R -11 1 R -9 1 R 
-8 1 R -9 2 R -11 1 R -9 1 R -9 2 R -11 1 R -9 1 R 
-9 2 R -11 1 R -9 1 R -9 2 R -11 1 R -9 1 R -9 2 R 
-12 1 R -9 1 R -13 2 R -8 1 R -8 1 R -9 2 R -10 1 R 
-9 1 R -9 1 R -12 2 R -9 1 R -9 2 R -11 1 R -9 1 R 
-9 2 R -11 1 R -9 1 R -9 2 R -11 1 R -8 1 R -9 1 R 
-9 2 R -10 1 R -9 1 R -8 1 R -9 1 R -12 2 R -9 1 R 
-9 2 R -10 1 R -9 1 R -9 1 R -8 2 R -11 1 R -9 1 R 
-9 2 R -11 1 R -9 1 R -8 1 R -13 2 R -8 1 R -9 2 R 
-11 1 R -8 1 R -9 1 R -9 2 R -10 1 R -9 1 R -9 1 R 
-12 2 R -9 1 R -9 2 R ST
532 -610 MP
1 12 R 1 10 R 1 9 R 1 9 R 
1 10 R 1 10 R 1 10 R 1 10 R 1 11 R 1 11 R 1 10 R 
1 12 R 1 11 R 1 11 R 1 12 R 1 13 R 1 12 R 1 13 R 
1 13 R 6 Y ST
552 -395 MP
-18 1 R -14 1 R -14 1 R -14 1 R -11 1 R ST
410 -383 MP
-17 1 R 
-14 1 R -14 1 R -15 1 R -14 1 R -14 1 R -14 1 R -14 1 R 
-14 1 R -14 1 R -14 1 R -15 1 R A ST
233 -370 MP
1 19 R 1 14 R 1 15 R 
1 17 R 1 17 R 1 19 R 1 20 R 1 20 R 1 24 R 7 Y ST
378 -203 MP
-29 1 R 
-26 1 R -26 1 R -26 1 R -28 1 R ST
233 -368 MP
-19 1 R -13 1 R A ST
-561 -1100 MP
7 29 R 
5 21 R 7 29 R 2 9 R 2 9 R 4 Y ST
-437 -371 MP
1 16 R 1 12 R 1 14 R 
7 Y ST
-228 -389 MP
1 16 R 1 13 R 1 13 R 1 11 R ST
-8 -298 MP
1 20 R 1 19 R 1 20 R 
1 20 R 1 25 R 5 Y ST
117 -982 MP
1 9 R 4 17 R 1 9 R 3 13 R 1 9 R 
3 17 R 3 13 R 1 9 R 2 13 R 3 17 R 2 13 R 3 13 R 
1 10 R 2 13 R 2 13 R 2 13 R 2 13 R 2 9 R 1 11 R 
1 9 R 2 13 R 2 13 R 1 9 R 2 13 R 1 9 R 2 9 R 
1 11 R 1 9 R 1 9 R 1 9 R 2 9 R 1 13 R 1 9 R 
1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 
1 9 R 1 9 R 1 10 R 1 10 R 1 9 R 1 11 R 1 11 R 
1 11 R 1 11 R 1 11 R 1 13 R 1 11 R 1 13 R 1 13 R 
1 13 R 1 14 R 1 14 R 1 15 R 1 16 R 1 17 R 1 17 R 
1 19 R 1 20 R 1 22 R 1 24 R u ST
549 -603 MP
9 11 R 13 4 R 9 13 R 
8 7 R 9 6 R 11 10 R 12 10 R 6 9 R 10 12 R 8 6 R 
11 3 R 23 9 R 13 -1 R 9 3 R 9 4 R 9 5 R 5 9 R 
8 7 R 11 14 R 7 11 R 10 16 R 5 9 R 3 9 R -5 6 R 
-7 7 R -6 6 R -8 4 R -10 3 R -8 5 R -8 12 R -1 9 R 
-8 6 R 7 19 R 1 9 R 3 17 R 4 11 R 7 5 R ST
728 -298 MP
6 5 R 
6 9 R i ST
742 -281 MP
7 5 R 7 8 R 12 8 R 13 2 R 13 8 R 10 3 R 
17 7 R 9 3 R 14 15 R 8 5 R 11 4 R 8 7 R 6 8 R 
8 7 R 9 2 R 15 2 R 9 -1 R T ST
921 -189 MP
8 5 R 7 7 R 9 3 R 
12 2 R ST
957 -172 MP
8 4 R 5 9 R 2 9 R 8 9 R 3 12 R 7 11 R 
4 9 R 1 10 R 1 9 R 1 12 R 8 9 R 7 13 R -7 5 R 
-2 9 R ST
390 -1223 MP
1 11 R 1 9 R 1 9 R 1 9 R 1 9 R 2 9 R 
1 12 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 1 9 R 
1 9 R 2 9 R v ST
407 -1079 MP
13 -8 R ST
421 -1088 MP
6 10 R 7 12 R 6 10 R 7 12 R 
5 9 R 6 9 R 7 12 R 6 11 R 5 8 R 5 9 R 6 9 R 
7 13 R 5 8 R 6 11 R 9 14 R 10 18 R 5 9 R 5 8 R 
6 10 R 2 5 R ST
544 -879 MP
1 10 R 1 8 R 2 12 R 1 8 R 2 12 R 
1 8 R 2 12 R 1 8 R 2 12 R 1 8 R 1 8 R 1 8 R 
2 12 R 1 8 R 1 8 R 1 8 R 1 8 R 1 8 R 1 4 R 
ST
568 -709 MP
-11 1 R -7 1 R -8 1 R -5 1 R ST
537 -705 MP
1 10 R 1 7 R 1 12 R 
1 8 R 1 8 R 1 8 R 1 8 R 1 8 R 1 8 R 1 8 R 
1 10 R 1 6 R ST
Wlw SLW -1020 -753 MT
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-819 -705 -569 344 -340 844  CL
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22 -1392  PL
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22 -1392 MT
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22 -1392 MT
104 -1328 285 -1237 385 -1209  CL
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66 686 88 -89 22 -479  CL
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264 697 468 -671 22 -1437  CL
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-385 1300 MT
-320 1055 -25 918 204 1026  CL
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89 614 -1 -686 -566 -1300  CL
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1063 774 1221 -594 -68 -1437  CL
22 -1437 MT
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22 -1437 MT
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22 -1437 MT
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204 1026 MT
44 879 -136 948 -158 1163  CL
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390 150 186 -921 -22 -1437  CL
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385 707 MT
324 778 233 938 204 1026  CL
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226 794 -45 1022 -158 1163  CL
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1164 558 1210 -742 -68 -1437  CL
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333 652 605 -534 385 -1209  CL
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43 1156 202 951 158 753  CL
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-294 1300 MT
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-340 1300  PL
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1108 1059 1244 169 -22 -479  CL
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1179 -22 MT
823 190 223 738 -22 1072  CL
158 753 MT
81 814 -9 974 -22 1072  CL
158 753 MT
217 753 331 730 385 707  CL
158 753 MT
-64 799 -290 1073 -294 1300  CL
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HF setfont gsave /HFn IF def
(alberta) 90 -1020 -753 HST
(amdahl) 90 -22 -1392 HST
(ames) 90 22 -1392 HST
(att) 90 748 935 HST
(bellcore) 90 -204 1163 HST
(cmcl2) 90 -204 1209 HST
(decvax) 90 -385 1300 HST
(decwrl) 90 22 -1437 HST
(gatech) 90 385 707 HST
(hplabs) 90 -22 -1437 HST
(husc6) 90 -294 1300 HST
(kddlab) 90 -1179 -844 HST
(linus) 90 -340 1300 HST
(mcnc) 90 204 1026 HST
(mcvax) 90 -566 1506 HST
(mit-eddie) 90 -340 1346 HST
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(nbires) 90 22 -479 HST
(ncar) 90 -22 -479 HST
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(purdue) 90 -68 524 HST
(rutgers) 90 -158 1163 HST
(tektronix) 90 -566 -1300 HST
(ubc-cs) 90 -839 -1255 HST
(ucbvax) 90 -68 -1437 HST
(ucsd) 90 385 -1209 HST
(ukma) 90 158 753 HST
(utgpu) 90 -340 890 HST
(utzoo) 90 -294 890 HST
(uunet) 90 -22 1072 HST
(watmath) 90 -340 844 HST
grestore
 showpage

grestore

david@ms.uky.edu (David Herron -- One of the vertebrae) (06/02/88)

In article <7348@swan.ulowell.edu> page@swan.ulowell.edu (Bob Page) writes:
>I can't decide what the rutgers-ukma link is.  Two paths?  Does the '+'
>mean all the connected sites talk to each other?  Although it looks like
>rutgers is the center of the Usenet universe, some links are triads
>(rutgers/gatech/mcnc, rutgers/cmcl2/husc6, rutgers/ukma/gatech).

The "+" between ukma, rutgers, gatech and husc6 are all NNTP links that
each of us has with the others.  At least, ukma has links with the other
three and rutgers and gatech are connected, I don't know husc6's links
very well.

"triad" is probably a bad word.  We each have normal type nntp links
with each other.

>Since I assume this is all NNTP traffic, I wonder how much Internet
>traffic would be cut by dropping some of those links, or making them
>mostly unidirectional?

That's an interesting thought.  There have been a number of backbone
sites created soley because of the NSFnet.  I know that before we
got on NSFnet we were STRUGGLING to find money to pay phone bills
and even resorted to making a link with an IBM mainframe over BITNET
to even have one full feed.  The same has happened all over the
country.

A thought I had today was whether or not the rapidly increasing traffic
loads have anything to do with all this new connectivity that the
net is finding.  A year ago it took quite a bit of effort on my
part (and I'm pretty well motivated as far as Usenet goes) to have
that one full feed.  A less motivated version of me wouldn't have
been able to keep it going and thus this site wouldn't have been
able to generate much traffic.  Now we've got really reliable news
here and there's lots of traffic coming in which is prompting the
local users to generate lots of traffic.

food for thought ...

>I also wonder about linus ... we're a hop away from husc6, and I don't
>see much traffic through linus.

Yeah, isn't the net a wonderful thing?  We set up these links and then
can't predict the way messages will propogate.

>Are these maps generated by hand?

Yes they are.

-- 
<---- David Herron -- The E-Mail guy                         <david@ms.uky.edu>
<---- s.k.a.: David le casse\*'   {rutgers,uunet}!ukma!david, david@UKMA.BITNET
<---- 
<---- Goodbye RAH.

karl@saqqara.cis.ohio-state.edu (Karl Kleinpaste) (06/02/88)

reid@decwrl.dec.com writes:
   As a result it has some bugs (e.g.
   ... there is some confusion as
   to just what is the name of the node "ohio-state").

The confusion is probably due to the fact that the backbone site
`ohio-state' is actually two machines.  One is the 3B2/400 called
osu-cis, and the other is tut.cis.ohio-state.edu, a Pyramid 98x.  A
total of about 30 full-feed netnews neighbors, split roughly evenly
between the two for UUCP on osu-cis and NNTP on Tut.

For the purpose of map generation, the long/lat info on osu-cis should
suffice.  Our map entry doesn't show Tut explicitly, if I remember
right; he would just be part of ohio-state.edu, hidden (for UUCP
purposes) behind osu-cis as the university's gateway.

--Karl

clewis@spectrix.UUCP (Chris Lewis) (06/03/88)

In article <7348@swan.ulowell.edu> page@swan.ulowell.edu (Bob Page) writes:
>Isn't there a new backbone in Spain, fed by mcvax?

Could be.  Then again, maybe they simply didn't tell Gene.  Maybe they didn't
want to be advertised.  After all, "backboneship" isn't really something
that Gene "grants" - it's really just the way the major news flows are
setup by the neighboring site admins.  Gene's list is really only of those 
sites that want to advertise themselves as major traffic points.  Mnetor
was a backbone in everything but name for over a year before we bothered
mentioning it to Gene.  (Actually, it was a backbone for a couple of
days before we knew it... ;-)

>I don't understand some of the map.  Like, why are ulysses, ubc-cs and
>vucomp on there, all dead ends (and vucomp a restricted link at that)?
>I submit that a 'backbone' link is to carry the news fast between
>other backbone links, and I don't see these sites as doing that
>(except for their leaf nodes ... hell, everybody does that). By the
>same token, alberta would have to be looked at.

Reread the posting:

|A Usenet "backbone" site is one which exchanges every (non-local) news
|article it receives with at least two other backbone sites; or which is
							     -----------
|the main newsfeed for a particular geographical area (e.g., Australia)
-----------------------------------------------------
|or special news gateway (e.g., inet) and exchanges news with at least
|one other backbone site.  

Alberta is a geographical region, so's British Columbia etc.  Sounds 
perfectly legit to me.

>
>I can't decide what the rutgers-ukma link is.  Two paths?  Does the '+'
>mean all the connected sites talk to each other?  

Good question.  Gene?  Looks to me like a simple cross-over without
connection.
-- 
Chris Lewis, Spectrix Microsystems Inc, Phone: (416)-474-1955
UUCP: {uunet!mnetor, utcsri!utzoo, lsuc, yunexus}!spectrix!clewis
Moderator of the Ferret Mailing List (ferret-list,ferret-request@spectrix)

duncan@comp.vuw.ac.nz (Duncan McEwan) (06/03/88)

In article <7348@swan.ulowell.edu> page@swan.ulowell.edu (Bob Page) writes:
>
>I don't understand some of the map.  Like, why are ulysses, ubc-cs and
>vucomp on there, all dead ends
>

It really hurts to have our legitimacy questioned like this -- and by
someone who didn't take the time to spell our name right either :-)

From spaf's recent backbone map posting (<4245@medusa.cs.purdue.edu>) ...

>A Usenet "backbone" site is one which exchanges every (non-local) news
>article it receives with at least two other backbone sites; or which is
>the main newsfeed for a particular geographical area (e.g., Australia)
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> ...
> vuwcomp	Victoria University of Wellington, Wellington, New Zealand

New Zealand - that's a geographical area somewhat distant from North
America.  Check us out in your atlas - we're just to the right of Australia. 

>I submit that a 'backbone' link is to carry the news fast between
>other backbone links, and I don't see these sites as doing that
>(except for their leaf nodes ... hell, everybody does that).

Last time I looked there were no other backbone sites in NZ to feed.
But we do feed news to 4 non-leaf and 5 leaf nodes.  Sorry that's not
many by your standards, but NZ is a small country, and there are only
about 20 usenet sites here.

> (and vucomp a restricted link at that)?

Our X.25 cost's are substantially higher than the $.0025/Kb used by
Brian Reid in his latest "Usenet Readership Report".  Now if you are
offering to establish a news feed to us (and pay for it) we will be
quite happy to carry all the soc.* and talk.* drivel. 

--
Duncan
Domain: duncan@comp.vuw.ac.nz 		Path:   ...!uunet!vuwcomp!duncan

spaf@cs.purdue.EDU (Gene Spafford) (06/03/88)

In article <7348@swan.ulowell.edu> page@swan.ulowell.edu (Bob Page) writes:
>Isn't there a new backbone in Spain, fed by mcvax?

If so, no one has told me about it to update the map.

>I don't understand some of the map.  Like, why are ulysses, ubc-cs and
>vucomp on there, all dead ends (and vucomp a restricted link at that)?

Each is the gateway or main feed into an administrative or geographically
isolated domain.  ulysses is the feed into Bell Labs, ubc-cs is the
feed in British Columbia, and vuwcomp (not vucomp) is the gateway
into New Zealand.

>I submit that a 'backbone' link is to carry the news fast between
>other backbone links, and I don't see these sites as doing that
>(except for their leaf nodes ... hell, everybody does that). By the
>same token, alberta would have to be looked at.

Alberta is also the main feed into (surprise, Alberta).
Your definition of backbone is not the complete one.  Read the
text at the beginning of the article you are following-up to.

>I can't decide what the rutgers-ukma link is.  Two paths?  Does the '+'
>mean all the connected sites talk to each other?  Although it looks like
>rutgers is the center of the Usenet universe, some links are triads
>(rutgers/gatech/mcnc, rutgers/cmcl2/husc6, rutgers/ukma/gatech).

The two lines were result of a typo.  There is one link (NNTP)
between rutgers and ukma.  The + means a multi-way connection
(actually, all pairs meeting there are connected via NNTP links).
Can you think of a better way to show the map?

>Since I assume this is all NNTP traffic, I wonder how much Internet
>traffic would be cut by dropping some of those links, or making them
>mostly unidirectional?

Yes, all are Internet NNTP links.  However, many have been optimized
to be short hops.  Plus, the NNTP algorithm means that the full
article text is not shipped over ever link.  Once a site has it,
the total overhead to check if it arrived is only the article ID
plus a NACK packet -- not a lot of traffic, actually.

>I also wonder about linus ... we're a hop away from husc6, and I don't
>see much traffic through linus.

That doesn't mean the link doesn't work, or that there isn't much
flow.  It just means the connections to husc6 get called more often
and the news flows through there first.  If husc6 were down, you
would likely see a lot of news through linus as it took over the
slack.  

>Are these maps generated by hand?

Yup.

-- 
Gene Spafford
NSF/Purdue/U of Florida  Software Engineering Research Center,
Dept. of Computer Sciences, Purdue University, W. Lafayette IN 47907-2004
Internet:  spaf@cs.purdue.edu	uucp:	...!{decwrl,gatech,ucbvax}!purdue!spaf

page@ulowell.UUCP (06/04/88)

spaf@cs.purdue.edu (Gene Spafford) wrote:
>Can you think of a better way to show the map?

Yes, in fact.  However, I don't know if I could *do* it.  It is to try
and arrange the sites roughly geographically, then draw links.  See
below.

Brian Reid's postscript maps are fantastic.  Every month I grab the
posted ASCII backbone map and hang it on my office wall.  My idea of
how traffic flowed came roughly from that.  Then I saw the postscript
map, with things arranged geographically, and my whole idea of the
backbone links changed dramatically.  Almost all the links are down
the US Eastern seaboard or between the east and west US coasts.  The
drawing below is an approximation.  Figure that all the sites in the
clusters essentially talk to each other, and that I didn't draw in
most of the intercontinental links (that are mostly between the bay
area and [rutgers & husc6]).  It looks something like (in North
America... picture the US and Canada):


    +-- alberta--------------------------+
    |                                    |  +-------------------------+
ubc-cs----------------------------------watmath utgpu                decvax
  :                                          utzoo              linus mit-eddie
 uw-beaver------------------------------------------------------------------+ |
tektronix----------------------------------------------------+         husc6--+
 |                      +------------------------------------)--------'  |    |
 |                      |                                    |        philabs |
 |            +---------)------------------------------------)-bellcore cmcl2 |
 |            |         |                                    |       rutgers--+
 |            |         |                                    |       | | | |
 |            +---------)--------------purdue                +uunet  | | | |
 | ucbvax     |         |                |                        |  | | | |
hplabs amdahl | +------ncar              |                        |  | | | |
decwrl ames---+-+     nbires-------------)------------------------+  | | | |
 |                                       |            ukma-----------+ | | |
 |                                       |              | +--mcnc------+ | |
 |                                       |              | |              | |
 |                                       +-----------gatech--------------+ |
ucsd-----------------------------------------------------------------------+

I did this in 30 minutes, on line.  If I used some graph paper and a
pencil first, I'm sure I could get it to look a lot nicer, as well as
adding the sites I left out.

The point is ... more geographically-oriented maps show where links
are either redundant or needed.  There are about 8 intercontinental
links between the bay area and the northeast corridor alone, just on
the backbone (never mind all the cross-country links that aren't
listed).  Are they all necessary?  Probably not, but since they're
mostly NNTP links over the Internet, site admins don't worry about the
traffic, since they aren't paying for it.

..Bob
-- 
Bob Page, U of Lowell CS Dept.  page@swan.ulowell.edu  ulowell!page