hellier@skat.usc.edu (Chuck Hellier) (01/21/89)
I have a problem running MICOM-Interlan Telnet V1.0 - May 20, 1988 via a MICOM NetWare TCP/IP gateway (with a Micom NP600 connected to our campus wide-area network) on a Novell server running Netware SFT v2.10. The host I wish to connect to is an IBM 3090 running TSO; that Server Telnet is Access/MVS <V2.1>. When telnetting from our Sun 3/50s (BSD 4.2) to MVS, we are able to negotiate a full-screen edit session, as well as the line mode (line-at-a-time) session. The IBM-3278 terminal emulator works beatuifully. When telnetting from PCs to MVS, we _cannot_ negotiate a full-screen edit session, only a simple line mode session. We are using Add-A-Terminal's Adds Viewpoint/78 terminal emulator, which is reputed to fully emulate a 3278 terminal. This is a beginning of the script of the telnet (Sun->MVS): >Script started on Thu Jan 19 14:07:44 1989 >% tn3270 >tn3270> toggle options >Will show option processing. >tn3270> open mvsa >Trying... >Connected to mvsa.usc.edu. >RCVD will SUPPRESS GO AHEAD (reply) >SENT do SUPPRESS GO AHEAD (reply) > >OS/MVS SERVER TELNET -- AT HOST MVSA.USC.EDU >ACCES/MVS <V2.1> -- Thu, 19 Jan 89 14:08:01 PST > >Enter "NEWS" for current news. Last updated: 14 Apr 88. > >ENTER COMMAND OR 'HELP': >tso hellier >RCVD do TERMINAL TYPE (reply) >SENT will TERMINAL TYPE (don't reply) >Received suboption Terminal type - request to send. >Sent suboption Terminal type is IBM-3278-2. >RCVD do END OF RECORD (reply) >SENT will END OF RECORD (don't reply) >RCVD will END OF RECORD (reply) >SENT do END OF RECORD (reply) >RCVD do BINARY (reply) >SENT will BINARY (don't reply) >RCVD will BINARY (reply) > >------------------------ USC - System MVSA - TSO LOGON---------------------- I do not have a script of the telnet (PC->MVS), however, I examined a session (showed option processing), and I noticed that the process started exactly the same EXCEPT that there was no RCVD do TERMINAL TYPE (reply) or anything after it. The MVS Telnet merely went into a line mode session. So, the QUESTION is: Does the MICOM-Interlan Telnet understand the suboption Terminal type - request to send message? If it does, does the Add-A-Terminal Adds Viewpoint/78 emulator send the proper Terminal type? Interesting, huh? Please respond to me directly. TIA, Chuck ---------------------------------------------------------------------- Chuck Hellier For you are young hellier@skat.usc.edu and life is long Network Systems Consultant and there are risks
AEDAVIS@VM.CC.OLEMISS.EDU (Don Davis) (01/22/89)
Chuck,
If you could summarize to the net what you discover, I am sure that
others including myself would be interested in what you feel is the problem.
thanks,
DON DAVIS BITNET: AEDAVIS AT UMSVM
APPLICATIONS ANALYST INTERNET: AEDAVIS AT VM.CC.OLEMISS.EDU
UNIVERSITY OF MISSISSIPPI
OCIS
UNIVERSITY, MS. 38677
(601) 232-7206ron@ron.rutgers.edu (Ron Natalie) (01/24/89)
A long standing bug with the UCLA MVS code and certain TN3270 client implementations (notably the one that comes with IBM's VM product (and it's Wiscnet predecessor and also observed with an old copy of Peter DiCamillo's MAC TN3270)) is that the the MVS code does not negotiate the 3270 mode until you actually type TSO or whatever, but these clients expect that you select 3270 mode at the beginning of the connection and never check again. You should complain to get the tn3270 fixed. -=Ron