Path: utzoo!attcan!uunet!wuarchive!gem.mps.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!ncrcce.UUCP!mercer
From: mercer@ncrcce.UUCP (Dan Mercer)
Newsgroups: comp.protocols.ibm
Subject: Re: TCP/IP over SNA
Message-ID: <8909272335.AA04621@jade.berkeley.edu>
Date: 27 Sep 89 21:29:07 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: Dan Mercer 
Organization: The Internet
Lines: 65

In article <8909261253.AA07662@jade.berkeley.edu> "Kevin P. Kleinfelter"
         writes:
:robert@peregrine.UUCP (Robert Young) writes:
:
:>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
:
:[Stuff about connections suggested by IBM omitted.]
:
:>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.
:
:O.K.  I have spent quit a bit of time hashing this out with many different
:people, and this is how it looks to me:
:
:1. You CAN send TCP/IP over SNA -- in SOME cases.
:   To attach SNA to TCP/IP (using AVAILABLE hardware/software) you
:   MUST have a host (i.e. a 370) and a host adapter (I think it is an
:   8232).  To route TCP/IP over SNA would look as follows:
:
:workstation---8232--370====(SNA NETW)===370--8232---workstation
:
:There are plans involving RT's and SDLC links, but they do not seem
:(to me) to really be routing TCP/IP over an SNA network.
:
:2. The "normal" IBM communications hardware (3705, 3174, etc) do
:   not support TCP/IP connections.  You have to attach to a host
:   at each end of your link.  Future versions of the 3705 and 3174
:   will probably support TCP/IP, according to an IBM employee
:   I met at an IBM class, but that is "unofficial."
:
:3.  We don't like the above.  We are looking at multiplexing TCP/IP and
:    SNA over our existing lines, or using an X.25 service, or
:    using other alternatives to running TCP/IP over SNA.  If you find
:    a better solution, PLEASE POST!  (Other people seem to be interested!)
:
:--
:Kevin Kleinfelter @ Management Science America, Inc (404) 239-2347
:gatech!nanovx!msa3b!kevin

Try talking to your local NCR Comten representative for solutions to
SNA and non-SNA networking problems.  NCR Comten manufactures IBM
plug compatible SNA front ends offering both channel and SDLC link
attached connectivity.  NCR Comten also has a wide ranging offering
of connectivity products for non-SNA networks,  connecting to both
BSC and X.25 hosts.

NCR Comten will shortly be offering a TCP-IP product.  Initial
link connectivity will be via X.25,  but an Ethernet interface will
also be provided.   Your NCR Comten representative should be able
to provide you with availability dates.




--

Dan Mercer
Reply-To: mercer@ncrcce.StPaul.NCR.COM (Dan Mercer)