[Asterisk-Users] TE410P ERRORS under load

[Scott Stingel]

Mark-

The system is Tyan s2723, which includes an integrated graphics controller,
and I've connected a monitor to this port.  I don't start the X-windows
software however, and I don't use this monitor.  For starting my scripts, I
connect using SSH via an Ethernet port, however everything operates in
background mode, there is no output to any console while these tests are
running - just log files.

I do receive an occasional Double/missed interrupt message - but very few of
these.

Will report the results of testing your new driver code!

Thanks
Scott

Scott M. Stingel 
Emerging Voice Technology Inc.
 

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of 
> Mark Spencer
> Sent: Friday, November 21, 2003 5:39 AM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] TE410P ERRORS under load
> 
> 
> I've made some updates that may help alleviate these problems 
> on TE410P on
> E1.  I'd like you to test and tell me if that helps.  Also, 
> I'd like you
> to confirm that you are using neither serial console nor frame buffer
> (graphical) console.
> 
> Mark
> 
> On Thu, 20 Nov 2003, Scott Stingel wrote:
> 
> > Hi all-
> >
> > HELP!
> >
> > This is actually a revisit of a problem that I had earlier 
> with E400P's at a
> > customer site.  Customer still gets locked up channel 
> problem, but has
> > learned to live with it  (channels clear themselves after 
> several minutes).
> > The symptoms, which I  believe are directly related:
> >
> > I'm having problems with tons of framing and "read" errors on my E1
> > connections (and occasional stuck channels) when I run a 
> very simple IVR
> > script under anything other than light load.  Previously, I 
> had thought this
> > problem related to my customer's PBX connections (Nortel 
> DMS100), but in the
> > last week I've had the opportunity to work in-house with a couple of
> > TE410P's, with one span making calls to another on the same machine.
> >
> > I have two simple scripts running under the dialplan.  On 
> span 1, I simply
> > answer each call, play a short message, and hang up.  On 
> span 2, I run a
> > Perl script that formats and drops calls (into 
> /var/spool/asterisk/outgoing)
> > for all channels at staggered times.  These calls are 
> simple outgoing calls
> > that dial a number, wait 2 seconds, and hangup.  After a 
> few seconds, each
> > call repeats.
> >
> > I can run this scenario on up to 10 channels at once with 
> *no errors*.
> > Above 10 channels, I start to get many (several per second 
> when running 30
> > channels) framing and "read" errors, with text similar to 
> the following:
> >
> > WARNING[1167272128]: File chan_zap.c, Line 5670 
> (zt_pri_error): PRI: !! Got
> > reject for frame 26, retransmitting frame 26 now, up_dating n_r!
> > (repeating for each error several times, with ascending 
> retransmitted frame
> > numbers)
> >
> > and also, less often:
> > WARNING[1167272128]: File chan_zap.c, Line 5670 
> (zt_pri_error): PRI: Read on
> > NN failed: Unknown error 500   (NN is the channel)
> >
> > MY SETUP:
> > Tyan S2723, with dual Xeon's running at 2.4 GHz, 1MB memory
> > Redhat 9
> > Two TE410P's, spans set for E1.  Problem happens between 
> spans on different
> > boards, or spans on the same board.
> > Sending board setup in zaptel.conf, for example:  
> span=2,1,0,ccs,hdb3
> > (adding crc4 makes no difference)
> > Recving board setup in zaptel.conf, for example:  
> span=1,0,0,ccs,hdb3   "  "
> >
> > In zapata.conf, sender is "pri_net" and receiver is "pri_cpe"
> >
> > QUESTIONS:
> > ANYONE: Has anyone else experienced these framing problems 
> in any scenario,
> > and if so, what did you do about it please?
> >
> > FOR THE ISDN GURU's: What exactly does the framing error indicate?
> >
> > THANKS IN ADVANCE FOR HELPING ME SOLVE THIS LOAD_RELATED PROBLEM.
> >
> > Scott M. Stingel
> > Emerging Voice Technology Inc.
> > Palo Alto, California and London, England
> >
> > URL:            www.evtmedia.com
> >
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> 
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