Re: CHGTELNA -- MIDRANGE-L

Larry,

In AS/400 versions prior to V4R4M0, the telnet server needs the special TC1
product PTF to allow the timemark to function as designed.   This PTF
requires that the function be enabled by a special call to QTCP/QTGSRV to
activate the enhanced timemark. The PTF has multiple functions that enable
reading telnet server port from service table, timemark and redundant DO
binary that can be enabled with a parameter on this program call.

In V4R4M0, the method of checking lost connections was changed that is
better since it relys on the TCP protocol layer in the TCP/IP stack to
check the connection.  The TCP protocol in the TCP stack has to do this
anyway and is much more efficient.  The value is still activated using
timemark in CHGTELNA.
Richard Hartmann
rgh@us.ibm.com
-----------------------------------------
Date: Tue, 09 Nov 1999 13:28:38 -0500
From: Larry Bolhuis <lbolhui@ibm.net>
Subject: Date: Tue, 09 Nov 1999 13:28:38 -0500
From: Larry Bolhuis <lbolhui@ibm.net>
Subject: Re: CHGTELNA

Jeff,

> The Timemark timeout has always worked, the PTF you are thinking of
simply makes
> it work more quickly.  However, the Timemark setting is for testing the
client
> connection, not the local activity.  QINACTITV tests the local activity.
Both
> will close a Telnet connection, so the lower of the two wins.

  I guess it depends on how you define 'worked'.  I have one customer with
over
2500 users that dial in to the AS/400 via Shiva remote access switches
using
TCP/IP and Telnet.  None of these people are computer experts and they all
purchase their own hardware.  Very few of you can imagine the amount of
'fun' the
help desk has at this account.  Prior to installing the PTF in question no
matter
what we set any of the values to, the Telnet sessions would live on for
hours and
hours clogging up the machine and causing call after call about being
disconnected and 'now I can't get back on' because the user is limited to a
single signon. IBM told us that timemark did not really function as
intended and
we needed the PTF.  After installing the PTF and setting the timemark
timeout,
near sanity was restored to the help desk as the sessions now go away less
than a
minute from the modem drop.  Life is good!

 - Larry

- --
Larry Bolhuis         | What do You want to Reload today?
Arbor Solutions, Inc  | Don't throw your PC out the window,
(616) 451-2500        |  throw WINDOWS out of your PC.
(616) 451-2571 -fax   | Two rules to success in life:
lbolhui@ibm.net       | 1. Never tell people everything you know.

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