• Subject: Re: TCP/IP Disconnected Sessions With Rumba
  • From: rgh@xxxxxxxxxx
  • Date: Sun, 9 Jan 2000 21:30:33 -0600

One reason a display session would disconnect is the inactivity timer.  At
V4R3 and earlier, this is set in CHGTELNA with the inactivity timeout
parameter and the system value QINACTITV.   The lower value is the
inactivity time for the session.  You should set CHGTELNA inactivity to 0
which forces the session inactivity timer to use the system
value(QINACTITV).  In V4R4 the inactivity parameter in CHGTELNA was

MaryLou describes printer emulations that disconnected when the client PC
loses power with active sessions.   The telnet server uses timemark(Set in
CHGTELNA timemark parameter) to see if the client session using that device
is still active.  At V4R3 and before, the timemark was enhanced to allow it
to free up the device when a PC workstation with an active session powered
down.  There are 5769TC1 PTFs at V4R3 and earlier that allow the timemark
to operate faster when a lost session is disconnected.   The cover letter
of the PTF tells how to activate the enhanced timemark.   At V4R4, the
telnet server uses the TCP protocol keep alive logic to determine if a
session is not responding.   This would end the job on a display or printer
device seconds after detecting the host is not responding.   And since it
is TCP, it works on any network environment.

The net is Inactivity time is the amount of time a session can be inactive
before being disconnected or ended.  Inactivity timer only applies to
display sessions.     The timemark is used to determine when a host is no
longer responding that will frrree up the device.  Timemark can be used for
printer or display devices.

Richard G. Hartmann  AS/400 TCP/IP, Telnet Server/Client, Workstation
Gateway, Print Server development
e-mail: rgh@us.ibm.com

 > Date: Sat, 08 Jan 2000 18:10:48 -0500
 > From: MaryLou Atwell <matwell@interboro.k12.pa.us>
 > Subject: TCP/IP Disconnected Sessions With Rumba
 > Hi,
 > Our district used Rumba for quite some time after IBM dropped it from
 > Client Access line some time ago.  It did provide alot easier set up for
 > the printer emulations.  I did find though that there was difficulty on
 > user reconnecting if for whatever reason the session ended.  Be it a pc
 > lock up or some sort of disconnect.    The only way I was ever able to
 > it was to have the user call me, then I would go thru "wrkcfgsts *dev
 > that pc description, and vary it off, and then vary it back on.    After
 > calls to WallData, it was never fixed, and I was quite unhappy with that
 > aspect of the product.   Yes, there are parts that are great, however,
in a
 > WAN of 400 pc's, and they might all disconnect at the same time,
 > well....   I have switched back to Client Access for that among other
 > reasons.      I'm not totally thrilled with Client Access but,  at least
 > I'm supported with it in some ways.   I just was never given a reason or
 > way to fix it...
 > -----Original Message-----
 > From:DAVID BULOG [SMTP:d2ba@xtra.co.nz]
 > Sent:1 January 2000 22:31
 > To:MIDRANGE-L@midrange.com
 > Subject:TCP/IP Disconnected Sessions with Rumba
 > Happy New Year all
 > At work on our big boxs we are using Rumba Office/95 connected via
 > as a term emulator.I am having a problem where out of the blue the Rumba
 > Session gets disconnected (you get a blank screen-no sign on).Upon queri
 > the AS/400 my session still shows varied on.
 > I was wondering if I can have a list of commands to check any suggested
 > parameters on a "Virtual Controller".
 > Using Netsoft Elite via SNA does not give us any problems only TCP/IP !!
 > I have been on this list for the past year and a half but have mostly
 > worked on HLLAPI and Client Server
 > programs via VB so I do not know much aboubt the AS/400 internal working
 > despite having a model200
 > and some old E20s at home
 > Dave B

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