• Subject: Re: Experince with Perle 494
  • From: Larry Bolhuis <lbolhuis@xxxxxxxxxx>
  • Date: Sun, 14 Jan 2001 20:59:12 -0500
  • Organization: Arbor Solutions, Inc

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
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