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From: todd@unix.ecs.rpi.edu (R. Lindsay Todd)
Newsgroups: comp.unix.ultrix,gnu.emacs
Subject: Re: ds3100/uws 2.x xon/xoff LAT problem
Summary: A VAX problem too!
Keywords: ds3100, ultrix, xon/xoff, LAT
Message-ID: <J1&##+@rpi.edu>
Date: 26 Feb 90 14:57:54 GMT
References: <229@asihub.AUTOSYS.COM>
Organization: ECS, Rensselaer Polytechnic Institute, Troy, NY
Lines: 32

In article <229@asihub.AUTOSYS.COM> dan@asihub.AUTOSYS.COM (Dan O'Neill) writes:
>
>	When connecting to a DS3100 from a LAT (local area terminal
>	server), xon and xoff are not handled correctly.
>
>	The C-X C-S (save file command) will stop output to the
>	terminal until C-Q is pressed.
>
>	This problem does not occur on a DS5400 under Ultrix 3.1-C-0
>	Rev 42.
>
>Is there any possible fix for this?  Is it something that will be
>fixed under UWS 4.0 for the DS3100?

This is also a problem with VAXen running Ultrix 3.1/UWS 2.[12].  I called
DEC just a couple weeks ago about this problem; the best they could do was
submit an SPR.  Perhaps there is a patch for RISC machines only?

Oh yes -- the DECperson I talked to (Atlanta CSC) had to submit a QAR for
Ultrix 4.0/RISC, since it was a problem there too; hopefully it will be fixed
before this is released!

A kludgey work-around you might try is to tell the terminal server to disable
flow control on you port, e.g.,
   SET PORT FLOW CONTROL DISABLED
will turn off all flow control for a port on a DECserver 200 until the port is
logged off.

--
-- 
R. Lindsay Todd, Rensselaer Polytechnic Institute, Troy, NY
Internet: todd@narnia.ecs.rpi.edu