This actually wound up spawning two problems. First there are a number of PTFs for Telnet. According to the support folks you really need:

Latest Cumulative + SI46687, SI46902, MF55751. SI46687 seems to be the important one.

Second IBM i is clearly starting TCP twice. The IPL attributes are set to start TCP and there is no STRTCP anywhere in any of the start up procedures. The TCP start up is submitted by QSYSARB4. Since there is no real job log on that system job we have not been able to dig much further without IBM.

Is anyone else seeing that?

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects

On 9/18/2012 9:21 PM, ankush agrawal wrote:
Hi Jim,

"Client machine keeps crashing the Telnet Server."

This is the issue with V7R1. After upgrading from V5R4 to V7R1, we also
faced the same problem.

I would suggest you to try this.


If the Telnet server is not ended prior to the ending of subsystems, it
might not automatically restart. To circumvent this and other potential
problems it is suggested that prior to ENDSBS *ALL *IMMED these steps be

3. Allow the commands to complete and the servers to end. If issuing the
commands from a CL program include a DLYJOB DLY(300) to allow the commands
to complete.

Also, there are PTF's recommended by IBM.


On Tue, Sep 18, 2012 at 3:38 PM, Paul Nelson<nelsonp@xxxxxxxxxxxxx> wrote:

> I ran into this one the other day. IBM first had me bounce the telnet
> server
> using the HMC, and then when I could get to QINTER, change the IPL
> attribute
> to not start TCP, and then change the boot program to start the subsystems
> first, and then issue the STRTCP command down at the end of the program,
> with a 2 minute delay. This is then followed by starting a couple of tcp
> servers needed for the application software.
> Mind you, this machine was upgraded in February. He told me TCP has been
> flaky since it was rewritten for V6R1, and it was dumb luck this hadn't
> happened previously.
> There are also a few ptf's that are not part of a package yet.
> Paul Nelson
> Cell 708-670-6978
> Office 512-392-2577
> nelsonp@xxxxxxxxxxxxx
> -----Original Message-----
> From:midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim Oberholtzer
> Sent: Tuesday, September 18, 2012 2:51 PM
> To: Midrange Systems Technical Discussion
> Subject: TCP/IP starts twice in V7
> Folks,
> This one has me stumped. Client machine keeps crashing the Telnet
> Server. IBM says the reason is TCP is starting twice. Nice, except
> there is not STRTCP command anywhere in the start up stream that we know
> of (I retrieved the cl source of the start up program to be sure) IPL
> attributes are set to start TCP.
> Any ideas?
> --
> Jim Oberholtzer
> Chief Technical Architect
> Agile Technology Architects
> --

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