[Asterisk-Users] Back-to-back connected boards load test

[Konrad Gorski]

Hi Alex,

About:
> WARNING[12301]: File chan_zap.c, Line 5342 (zt_pri_error): PRI: Read
on 203 failed: Unknown error 500

Similar warnings on my system are generated due to shared IRQ t1xxp and
ide0 (/proc/interrupts).
Just my 0.02$
Konrad



-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Alex Zarubin
Sent: Thursday, July 17, 2003 2:31 AM
To: 'asterisk-users at lists.digium.com'
Subject: [Asterisk-Users] Back-to-back connected boards load test

Hi, 
Two asterisk boards in two asterisk boxes are connected back-to-back
with crossover cables. 
T400P (box1, pri_net) creates a flow of calls, TE410P (box2, pri_cpe)
takes them. Cables are OK. 
Boxes are powerful. SMP is in place. Interrupts are distributed among
CPUs. 
There are 2 TE410Ps in the box2. Spans 1-4 in box1 are connected to
spans 5-8 in box2. 
The carrier T1 is in span 1 of box2 and provides clocking. 
All we want is to be able to have a consistent flow of 92 calls. All we
can do is 75-80 calls. 
There are D-Channels downs and ups on the spans where new calls are
sent. There are frame rejections and retransmissions.
There are read failures on D-Channel fds with 'Unknown error 500'. There
are PRI events 6 and 8 (HDLC-related). 
It gets worse as the total amount of calls goes up. 
The log (from asterisk start to the test finish is attached). Would
greatly appreciate any advice on how to fight this. 
Thank you. 
Alex Zarubin 
Webley Systems, Inc. 
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