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Article #2595

Re: IBM 3270 emulation using TCP?

#2595
From: Bill Ryder
Date: Wed, 22 Jun 1994 20:12
31 lines
2531 bytes
In article <2u4q3h$mm8@gaia.ucs.orst.edu> larsen@OES.ORST.EDU (Scott Larsen) writes:

> In article <2tpu1q$aps@nwfocus.wa.com>,  <wadeware@halcyon.com> wrote:
> >
> > I know nothing about 3270 emulation but that is seems way too complicated.
> >
> > Our small network in Seattle wants to do 3270 emulation with a machine in
> > Dallas.
> >
> > Question:  Using a leased line and routers, is there a way to achieve that
> > connection and emulation using TCP/IP rather than installing a 3270 controller
> > board in our server and connecting that way?  I use Chameleon TCP/IP for
> > Windows, and see that it has a 3270 emulator....that where I got this bright
> > idea....
> 
> 1) Your 3270 based host/mainframe must understand TCP/IP.  This can be
> 	accomplished in many ways.  A common approach is to channel attach
> 	a front end processor that connects a TCP/IP data stream to a
> 	3270 data stream.

The other way (and the one we usually use since it is usually MUCH
cheaper) is to install a small Sun - SS5 usually nowadays - very cheap -
with an HSI or Token ring card depending on free connections on the
FEP and SNA 3270/RJE software. The connection between the Sun and FEP
is SDLC (for the serial line) or LLC (?) for the Token ring. The Sun
then provides a TN3270 server to which you can attach your favorite PC
3270 software which supports TN3270.

This works VERY well.

Bill
Technical Details
Message-ID: <BILLR.94Jun23081233@audi.optimation.co.nz>
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References: <2tpu1q$aps@nwfocus.wa.com> <2u4q3h$mm8@gaia.ucs.orst.edu>

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From: billr@audi.optimation.co.nz (Bill Ryder)
Subject: Re: IBM 3270 emulation using TCP?
In-Reply-To: larsen@OES.ORST.EDU's message of 20 Jun 1994 19:19:13 GMT
Message-ID: <BILLR.94Jun23081233@audi.optimation.co.nz>
Sender: billr@optimation.co.nz (Bill Ryder)
Organization: Optimation Consulting
References: <2tpu1q$aps@nwfocus.wa.com> <2u4q3h$mm8@gaia.ucs.orst.edu>
Date: Wed, 22 Jun 1994 20:12:33 GMT
Lines: 31