Edward Solomon wrote:
>
> > > We have here a mainframe that speaks SNA and TCP/IP. We are migrating
> > > some applications to SUN machines that do not speak SNA. We'd like to
> > > migrated the existing SNA links to routers. Is it possible to translate
> > > SNA to TCP/IP and vice versa using a router as a gateway? Has anyone
> > > ever seem this?
>
> > Correct me if I'm wrong. I'm not CCIE certified yet. But yes, Its
> > being used all over the world. Mainframes was save from being
> > extinct because cisco came up a way to network sna traffic with ethernet
> > traffic. Source route translational bridge (SRTB) has to be configure on
> > the router. SRTB is a combination of transparant bridging and source
> > routing bridging. Ethernet uses transparant bridging because the
> > network is transparant to the end users. Mainframes run only on
> > token-ring networks so it only uses source-route bridging. So therefore,
> > SRTB needs to be in effect.
>
> Firstly, it is possible to migrate networks such that IP clients are able to
> talk to a mainframe talking SNA. The ONLY method of doing this is to use
> TN3270 server, which, in the Cisco world, runs either on the Channel Port
> Adapter (CPA) or the Channel Interface Processor (CIP). There are many other
> benefits to using a CPA or CIP in the 7000 series routers, although nowadays
> both IBM and Cisco are recommending the approach of using OSA Express
> adapters in the S/390 and running TCP/IP directly on the S/390.
Paulo Roque again:
Our problem is: we have a big customer which only use SNA and we must to
connect this customer to a TCP/IP server. We need a solution, preferably
on a cisco router, that connect this SNA customer in a TCP/IP server.
Thanks.
--
[EMAIL PROTECTED]
Network Engineer
CREA/MG 66089/D
ICQ# 6372 3382
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