[Asterisk-Dev] Recent PRI load problem

[reseaux]

Dear Scott
	i have the same problem with my E100P and mt Lucent pbx..
Thanks in advance
Dimitri

On Thursday 13 May 2004 07:19 pm, Scott Stingel wrote:
> Hello-
>
> I attempted last week to update to the latest CVS for my customer in
> Portugal, in order to take advantage of some new available features.  (I
> have 5 systems running high-volume IVR, each with 4 E1 spans).
>
> In this process, I found that since March 25 (when I last had a version
> that passed any kind of load test), the PRI driver or related code has been
> changed, with the result that it can no longer handle load without
> constantly taking the PRI D-channels down and up.  This of course results
> in many lost calls.  I can make this happen with my load tester quite
> easily - it only takes 10 or more simultaneous PRI calls, and happens
> within 60 seconds.
>
> The first error I get is:
>
> May 13 09:59:02 WARNING[-1200182352]: chan_zap.c:6134 zt_pri_error: PRI:
> ACK received outside of window, restarting
>   == D-Channel on span 2 down
>
> Followed by many I-frame and S-frame errors that result from the link being
> down.
>
> I'm trying to narrow down the date and changes made to the chan_zap and
> related code during April so that I can zero in on the error or bug.  If
> anyone has changed the PRI driver code recently (April probably), could you
> please contact me or post here for discussion?  I'm trying to gather more
> info before posting this on the bug list.
>
> Thanks!
> Scott Stingel
>
> PS:  My load tester loops back a designated number of channels on PRI 2 to
> PRI 1, and PRI 4 to PRI 3.  It generates calls on channels on the even PRI
> spans and receives them on the odd spans.  The receiving dialplan simply
> answers, plays a message and hangs up.  I have used this software and
> loopback configuration successfully for about a year now in helping to
> flush out bugs and limitations of the drivers and hardware.
>
>
>
>
> Scott M. Stingel
> President,
> Emerging Voice Technology, Inc.
> Palo Alto California & London England
> www.evtmedia.com
>
>
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