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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!uvaarpa!darwin.sura.net!paladin.american.edu!auvm!AKRONVM.BITNET!TOMPKINS
- Message-ID: <IBMTCP-L%93012809452921@PUCC.PRINCETON.EDU>
- Newsgroups: bit.listserv.ibmtcp-l
- Date: Thu, 28 Jan 1993 09:21:57 EST
- Sender: IBM TCP/IP List <IBMTCP-L@PUCC.BITNET>
- From: Frank Tompkins <TOMPKINS@AKRONVM.BITNET>
- Subject: Re: Multiple MVS Telnet Servers
- In-Reply-To: Message of Wed,
- 27 Jan 1993 12:59:18 EST from <ALLEN@WVNVM.WVNET.EDU>
- Lines: 39
-
- Allen,
-
- We have been running multiple MVS Telnet clients for about 9 months now,
- both under version 1 and 2.2.1, with no problems. You are right, we
- discovered (after a long and somewhat confusing dialog with IBM) that
- you can't run multiple Telnet servers in the same address space, and
- you can't have multiple Telnet address spaces responding to the same
- IP address (even at different ports).
-
- Our configuration consists of the "primary" TCP/IP address space, which
- is configured to provide the "normal" TCP/IP services (Telnet, FTP, etc),
- and two "secondary" TCP/IP address spaces, which have default appls of
- CICS and Phoenix (an instructional tool). The two "secondary" address
- spaces are connected to the "primary" by point to point IUCV links and
- only provide TELNET service.
-
- We had to use separate subnets, tell our router about the topology,
- play around a bit to get the TCPIPs to read the right configuration
- dataset(s), and monitoring the "secondary" TCPIPs involves editing a
- configuration dataset to point to the TCPIP you want to "talk" to,
- but once we got it all running, it's been reliable. I should add that
- our user loads have been relatively light so far, no more than 20
- users on an application at once.
-
- One last point, IBM does warn that this configuration is for "testing",
- and may not be acceptable for production. From what I remember, this
- was out of concern for the load on the "primary" address space, which
- is now serving as a router.
-
- Send me a note if you want additional information. Good Luck!
- - Frank
-
- *************************************************************************
- Frank Tompkins ║ Internet: Tompkins@VM1.CC.UAKRON.EDU
- Systems Programmer ║ Bitnet: Tompkins@AKRONVM
- University of Akron ║ Voice: (216) 972-7967
- Akron, Ohio 44325-3501 ║ Fax: (216) 972-5238
- "I have not failed, I've just found 10,000 ways that won't work"
- - Thomas Edison
-