• Subject: Re: Experince with Perle 494
  • From: "Roger Vicker, CCP" <rvicker@xxxxxxxxxx>
  • Date: Mon, 15 Jan 2001 21:36:39 -0600
  • Organization: Vicker Programming Systems

Larry, Jim, Chuck,

There is only one Perle with 5 twinax cards. It appears to the AS/400 as 5 
remote
locations. 5 APPC controllers attached to the line and 5 RWS controllers for 
the dumb
terminals/printers.

No messages in QSYSOPR.

Since it is twinax the virtual (*APPC) devices are not QPAD* but I did check 
the ones
that do exist and they were all OK. This is were twinax had generic named 
sessions before
CAExpress even existed.

Today (1/15/2001) the users didn't seem to have the problem. Regular weekly IPL 
to apply
PTFs/etc. but the Perle was not reset again.

New item: I had to config/add a new PC today. At first it reported the same 
"error
communicating with system while verifying security" before even asking for the
user/password. After fighting this several times I gave up and manually 
creating the
*APPC it complained another time. Then it connected but would not start a 
second session.
Rebooted the PC and it finally seemed to work fully.

Thanks

Roger Vicker, CCP

Larry Bolhuis wrote:

> Roger,
>
> > When the tech had me do a display on the Mode status for a couple of active 
>PCs it
> > was showing an instance per PC since each is a virtual host. It actually 
>showed
> > that the session limit had been "negotiated" to 64 per PC rather than the 
>"defined"
> > 256.
>
>   OK That makes sense. Each PC negotiates it's own Mode and 64 is planty
> more than each PC needs. I still believe you are hitting some type of
> limit, the $64 question is which one. Is it a limit in the Perle or on
> the 400 then is it one that can be changed. Since the problem even
> appears just starting an additional session on a PC already connected
> and functioning it must be some overall limit. You stated the devices
> already exist and the limit is set to 500 anyway so that's likely not
> it.  You say that you 'move it to another controller': Does this mean to
> another of the cards within the Perle or to another physical controller
> at that location?  Also do you get any messages whatever on the AS/400
> when this is occuring???
>
>   - Larry
>
> >
> > Roger Vicker, CCP
> >
> > Larry Bolhuis wrote:
> >
> > > > Multiple sessions are using multiple workstation addresses, and once you
> > > > hit a total of 40 addresses attached to one controller no additional
> > > > sessions can start.  You move the PC to another controller, with less 
>than
> > > > 40 active twinax addresses, and get connected.
> > >
> > >   Not quite correct. WIth CA Over twinax there is only ONE twinax
> > > 'session' (address) active. Each session on the PC just uses another of
> > > the available sessions in the active mode.  It certainly sounds like you
> > > are hitting some type of limit for sure. If you have 5 twinax cards in
> > > that thing (140 possible addresses) the number of sessions could easily
> > > hit 256. What I can't remember is whether you get multiple instances of
> > > mode QPCSUPP, one for each of the 5 cards in the perle or just one
> > > instance.  If you check the mode status does it show that you have
> > > sessions avilable?
> > >
> > >  - Larry
> > >
> > > >
> > > > Has anyone seen this strange one.
> > > >
> > > > Perle 494 with 5 twinax cards and at version 3.91, to a Vanguard 100
> > > > router, to frame relay, to AS/400 620 V4R4M0.
> > > >
> > > > Multiple PCs using Client Access V3R2M0 and service pack SF64050,
> > > > Perle/Affinity PCI Twinax Cards, twisted pair, and powered hubs. All
> > > > this has been working fairly well for months. (Occasional session
> > > > freeze/drop)
> > > >
> > > > Several PCs are connected to the AS/400. Another PC tries to connect
> > > > but gets a message that there was a communications error while
> > > > verifying security (or to that effect). If I move the PC to another
> > > > port on the same controller I get the same thing. Move it to another
> > > > controller and it gets in so the wire and card must be good.
> > > >
> > > > While this is going on some (but not all) of the users that are
> > > > connected report that they can only get 2 or 3 sessions active. I
> > > > watched as user 1 started A then B and tried C but got a blank screen.
> > > > Then watched user 2, without anything else changed or ended, start A
> > > > then B then C and get only a blank screen for D. To make this stranger
> > > > still after user 3 couldn't get in at all, user 1 disconnected
> > > > completely and then user 3 could connect but user 1 could no longer
> > > > get in. Reverse it, user 3 disconnects and user 1 could connect.
> > > >
> > > > I checked the MODD QPCSUPP and it was set for 256/256. System value
> > > > QUTORMT shouldn't be a problem because it was set at 500 and all the
> > > > devices had been created a long time ago and had been in use before
> > > > today.
> > > >
> > > > After several hours of chasing ghosts I shut down the Perle over
> > > > lunch, varied everything off, powered up the Perle, and varied
> > > > everything on. This let almost everyone that had problems in but a few
> > > > are still limited to 1 session or having problems getting connected.
> > > > Any Ideas would be greatly appreciated.
> > > >
> > > > I am about ready to tell them to shut the plant down for the 30 days
> > > > left until Sprint delivers a new router so I can move them to CA
> > > > Express over TCP.
> > > >
> > > > Roger Vicker, CCP
> --
> Larry Bolhuis
> Arbor Solutions, Inc.
> (616) 451-2500
> (616) 451-2571 -fax
> lbolhuis@arbsol.com

--
*** Vicker Programming and Service *** Have bits will byte *** www.vicker.com 
***
Please be sure to exit before leaving. - Jack Treger



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