mrm@sceard.UUCP (M.R.Murphy) (11/11/88)
Extracted from comp.mail.maps/README
# PATHALIAS DATA (or, documenting your UUCP connections & frequency of use)
#
# The DEMAND, DAILY, etc., entries represent imaginary connect costs (see
# below) used by pathalias to calculate lowest cost paths. The cost
# breakdown is:
#
# LOCAL 25 local area network
# DEDICATED 95 high speed dedicated
# DIRECT 200 local call
# DEMAND 300 normal call (long distance, anytime)
# HOURLY 500 hourly poll
# EVENING 1800 time restricted call
# DAILY 5000 daily poll
# WEEKLY 30000 irregular poll
# DEAD a very high number - not usable path
#
# Additionally, HIGH and LOW (used like DAILY+HIGH) are -5 and +5
# respectively, for baud-rate or quality bonuses/penalties. Arithmetic
# expressions can be used, however, you should be aware that the results
# are often counter-intuitive (e.g. (DAILY*4) means every 4 days, not 4
# times a day). This is because the numbers represent "cost of connection"
# rather than "frequency of connection."
#
# The numbers are intended to represent cost of transferring mail over
# the link, measured very rougly in elapsed time, which seems to be
# far more important than baud rates for this type of
# traffic. There is an assumed high overhead for each hop; thus,
# HOURLY is far more than DAILY/24.
#
# There are a few other cost names that sometimes appear in the map.
# Some are synonyms for the preferred names above (e.g. POLLED is assumed
# to mean overnight and is taken to be the same as DAILY), some are
# obsolete (e.g. the letters A through F, which are letter grades for
# connections.) It is not acceptable to make up new names or spellings
# (pathalias gets very upset when people do that...).
#
I notice that the value "ARPA" is now in use by some sites in Europe
and by mcnc in North Carolina :-).
What is the numeric value of "ARPA"? Note the last sentence of the
extracted material above. Comments?
--
Mike Murphy Sceard Systems, Inc. 544 South Pacific St. San Marcos, CA 92069
UUCP: {nosc,ucsd}!sceard!mrm INTERNET: mrm%sceard.UUCP@ucsd.ucsd.eduhoney@mailrus.cc.umich.edu (peter honeyman) (11/11/88)
read the code. peter
kls@ditka.UUCP (Karl Swartz) (11/20/88)
In article <782@mailrus.cc.umich.edu> honey@citi.umich.edu (peter honeyman) writes: >read the code. Not a terribly helpful comment, especially since it may not give each site the same answer -- maybe ARPA has kept the same value, but EVENING hasn't. It is 1800 in all the released versions I've seen, but inexplicably has been bumped to 2000 in the latest (not released but still available) version. -- Karl Swartz |UUCP {ames!hc!rt1,uunet!dasys1}!ditka!kls 1-505/667-7777 (work) |ARPA rt1!ditka!kls@hc.dspo.gov 1-505/672-3113 (home) |BIX kswartz "I never let my schooling get in the way of my education." (Twain)