[comp.protocols.tcp-ip] TCP/IP over SNA

freeman-andrew@CS.YALE.EDU (Andrew C. Freeman) (09/15/89)

We need some advice on a couple of issues.  Any comments or information
would be greatly appreciated.

   Location 1: Sun 4/390s running a Sybase server
 
   Locations 2,3,4,5: Small Sun networks across the country

What we hope to accomplish is the following:

     Transparent client access from locations 2-5 to the server at 
     location 1 (i.e. ability to use Sybase as if we were one local net),
     as well as telnet, etc.

At our disposal is an SNA network connecting all the sites. We would prefer
to use it but if there are other cost effective ways we will certainly 
consider them.  The real questions here are whether TCP/IP over SNA is 
possible/feasible/tolerable and whether Sybase DB-library functions well
over an internet

A side issue involves SNA on Sun. Can we support a user (either logged in
via telnet to the server or directly from locations 2-5) who wants a 
terminal session to an IBM host on the SNA network and can we support 
application to application from the Sun server to the IBM host.

Thanks in advance for those copious, informative replies. Please reply by
mail and include a telephone number if you would'nt mind a phone call. Also,
I realize that these topics may be fairly standard to some but please, don't
let my ignorance dissuade you from replying.

                   Thanks,
                   Andrew

    

drake@ibmarc.uucp (Sam Drake) (09/19/89)

This isn't a commercial, but ...

IBM's VM and MVS TCP/IP products can transport TCP/IP over SNA networks,
and there's a PRPQ available from IBM to allow the RT to do the same.

Sam Drake / IBM Almaden Research Center 

robert@peregrine.peregrine.com (Robert Young) (09/25/89)

In article <1079@ks.UUCP> drake@ibmarc.UUCP (Sam Drake) writes:
>This isn't a commercial, but ...
>
>IBM's VM and MVS TCP/IP products can transport TCP/IP over SNA networks,
>and there's a PRPQ available from IBM to allow the RT to do the same.
>
>Sam Drake / IBM Almaden Research Center 

I have a Sequent system (S81) connected to our 4381 mainframe through
SNA. We have already purchased the TCP/IP tapes from IBM but are waiting
for a hardware solution to connect the two systems. Initially, someone in
technical marketing (IBM) suggested we use an RT and a token-ring to
ethernet router but the idea never cooked. Now they are suggesting some
type of channel attached device (Ethernet) to connect the two systems.
Any ideas, suggestions and/or comments?

So far it looks like the IBM people we deal with are not completely sure
about any clear solutions.

Any clues would really be appreciated.

Robert Young
Peregrine Systems

John_Robert_Breeden@cup.portal.com (09/27/89)

>>This isn't a commercial, but ...
>>
>>IBM's VM and MVS TCP/IP products can transport TCP/IP over SNA networks,
>>and there's a PRPQ available from IBM to allow the RT to do the same.
>>
>>Sam Drake / IBM Almaden Research Center 
>
>I have a Sequent system (S81) connected to our 4381 mainframe through
>SNA. We have already purchased the TCP/IP tapes from IBM but are waiting
>for a hardware solution to connect the two systems. Initially, someone in
>technical marketing (IBM) suggested we use an RT and a token-ring to
>ethernet router but the idea never cooked. Now they are suggesting some
>type of channel attached device (Ethernet) to connect the two systems.
>Any ideas, suggestions and/or comments?
>
>So far it looks like the IBM people we deal with are not completely sure
>about any clear solutions.
>
>Any clues would really be appreciated.
>
>Robert Young
>Peregrine Systems

Anybody had experience with this box? Might it work in this case?

What MITEK provides, is a box which can be either remote or channel attached
to the host, and connected to our TCP network via the usual drop cable and
transceiver.  This box supports up to 64 concurrent login sessions, both
inbound to the mainframe from the 3B2, or OUTBOUND from the mainframe
to the 3b2.  An SNA user looks like a vt100 to the 3b2, and 3b users
look just like an IBM 32xx terminal to VTAM.  File transfer is supported
through FTP, and the MITEK box has complete terminal mapping and pro-
grammable keyboard mapping tables.
 
We are just completing the installation here, and our customer is
very pleased both with the solution (it requires no changes to their
existing network) and with the MITEK support.
 
I am told by MITEK that they will soon (2Q89) be announcing another
MITEK box which will provide the same file transfer and full-screen
terminal session capability for IBM S36/38 systems and TCP/IP.  If
the present is any indicator, this future product should be slick.
MITEK does have regional people scattered around the country, but
your best bet would be to give them a call in Carrollton, and find
out more about it.  I hope this info helps somebody.
 
 
john _robert_breeden@cup.portal.com