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  • Subject: Re: TCP/IP Disconnected Sessions With Rumba
  • From: "DAVID BULOG" <d2ba@xxxxxxxxxx>
  • Date: Fri, 7 Jan 2000 22:30:24 +1300

Thanks Richard I will pass this info to the EDS FM Ops team who look after
our AS400s.
I'm out of my depth here -I just write VB AS/400 Client/Server apps.

Dave

----------
> From: rgh@us.ibm.com
> To: MIDRANGE-L@midrange.com
> Subject: Re: TCP/IP Disconnected Sessions With Rumba
> Date: Monday, 10 January 2000 16:30
> 
> David,
> 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
> eliminated.
> 
> 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
> the
>  > 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
> a
>  > 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
> fix
>  > it was to have the user call me, then I would go thru "wrkcfgsts *dev
> Find
>  > 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
> a
>  > 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
> TCP/IP
>  > 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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