[Asterisk-Users] RE:PRI issues with TE410P
Scott Stingel
scott at evtmedia.com
Mon Mar 22 13:41:18 MST 2004
Hi Tomica-
Please let us all know what the resolution is.
Digium has been cooperative in the past on this problem (PRI driver issues,
if that's what is causing your problems), but recently they've had their
hands quite full with new features and a long bug list.
I have actually demonstrated the problem to Mark, when he was connected to
my system. To reproduce the problem with predictability is difficult,
because in my case it only happens under high call setup IVR traffic.
Like you, I'n in the situation of being reluctant to recommend system
expansions before this problem is fixed, or at least understood.
I hope that you have good luck getting this resolved!
Scott
Scott M. Stingel
Emerging Voice Technology Inc.
Palo Alto, California and London, England
Email: scott "at" evtmedia.com
URL: www.evtmedia.com
>-----Original Message-----
>From: asterisk-users-admin at lists.digium.com
>[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>Tomica Crnek
>Sent: Monday, March 22, 2004 8:24 PM
>To: asterisk-users at lists.digium.com
>Subject: RE: [Asterisk-Users] RE:PRI issues with TE410P
>
>
>Hi everyone,
>I have the problem not exactly like this one but here is the whole
>story...
>
>I have installed everything about 3-4 months ago and it worked fine for
>some time. After a while I noticed that calls drop from time to time,
>and after few weeks of troubleshooting I asked Digium support to check
>my installation. Michael Wood from Digium logged in and checked
>everything, he played a little with source and found that the card is
>missing interrupts from time to time. After that, together with Mark
>Spencer who looked at my site also, he decided that I have to send
>TE410P back because it is bad one, and that I will receive a new one.
>They were prompt, I have received the new one in few days time, and
>installed it. The problem is again the same and I have just reported it
>again to Digium support today. Calls drop from time to time, people are
>frustrated and therefore I can not put the card in production.
>The other
>problem is that I might have few customers very interested in Asterisk
>and I don't know what to say to them!?!?
>
>I hope someone from Digium is reading this mailing list and I hope that
>our posts can help them to solve these problems.
>
>Tomica Crnek
>---------------------------------------
>tel: +385 1 6690200
>dir: +385 1 6690250
>gsm: +385 98 227655
>SPAN d.o.o., Turinina 3, 10000 Zagreb, Croatia
>
>
>
>
>> -----Original Message-----
>> From: asterisk-users-admin at lists.digium.com
>> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>Azher Amin
>> Sent: Monday, March 22, 2004 7:46 PM
>> To: asterisk-users at lists.digium.com
>> Subject: RE: [Asterisk-Users] RE:PRI issues with TE410P
>>
>> Dear Scott,
>>
>> Thnx for the details. I will talk with Mark on these issues today.
>>
>> Regards
>> Azher
>> -------------------------------
>> http://www.consulttech.com.pk
>>
>>
>> -----Original Message-----
>> From: asterisk-users-admin at lists.digium.com
>> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>> Scott Stingel
>> Sent: Monday, March 22, 2004 11:29 PM
>> To: asterisk-users at lists.digium.com
>> Subject: [Asterisk-Users] RE:PRI issues with TE410P
>>
>> Hi Azher-
>>
>> I experience many of the same problems, especially the frame
>> retransmissions, which cause channel hangups from time to
>> time. These channel hangups clear themselves after a few
>> minutes normally but do interfere with calls.
>>
>> I'm not the expert on Linux internals, so I'm not sure what
>> can be done to improve things. If you have a SCSI disk
>> instead of an ide, you could try it instead, in case the IDE
>> interrupts are blocking the servicing of the TE410P. Of
>> course you can also take steps to minimize the ETH0
>> interrupts during operation as well.
>>
>> Finally, I believe there are deficiencies in the zaptel
>> driver in that it does not handle overrun and underrun errors
>> correctly. I'm not certain of this, but it appeared that way
>> to a programmer that I had look at the driver. Mark Spencer
>> at Digium has expressed interest in looking at this problem,
>> but has not thus far.
>>
>> You might report the problems to Digium customer service, and
>> tell them that the PRI problems are preventing you from
>> buying additional TE410p boards,
>> etc. Maybe if enough of us report the problems we'll get some
>> attention.
>> Be sure to copy sales (Greg Vance) on everything (gvance at digium.com)
>>
>> Sorry I don't have the magic answer.
>>
>> Regards
>> Scott
>>
>> Scott M. Stingel
>> Emerging Voice Technology Inc.
>> Palo Alto, California and London, England
>>
>> Email: scott at evtmedia.com
>> URL: www.evtmedia.com
>>
>>
>>
>> -----Original Message-----
>> From: asterisk-users-admin at lists.digium.com
>> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>Azher Amin
>> Sent: Monday, March 22, 2004 9:03 AM
>> To: asterisk-users at lists.digium.com
>> Subject: RE: [Asterisk-Users] PRI issues with TE410P
>>
>>
>> Dear Scott,
>>
>> I am using kernel 2.4.25. RedHat Linux 9.0. libpri-0.5.2,
>> zaptel-0.9.0, and asterisk from CVS of 20th March.
>>
>> About the IRQ misses, may be I am wrong, but from below, CPU0
>> has lot load from t4xxp, ide0 and eth0. Is it possible that
>> we can keep the ide0 and eth0 to cpu1 ? and just let the cpu0
>> handle t4xxp ? Any suggestion ??
>>
>> CPU0 CPU1
>> 0: 2295 8857853 IO-APIC-edge timer
>> 1: 2 0 IO-APIC-edge keyboard
>> 2: 0 0 XT-PIC cascade
>> 14: 98854 0 IO-APIC-edge ide0
>> 15: 5 5 IO-APIC-edge ide1
>> 22: 91359 0 IO-APIC-level eth0
>> 28: 88531746 50053 IO-APIC-level t4xxp
>> NMI: 0 0
>> LOC: 8860069 8860067
>> ERR: 0
>> MIS: 0
>>
>> Also on load, I am getting lot frame retransmissions. I have
>> attached the messages file, plz take a look at that as well
>> for some suggestions.
>>
>> I don't care about Frame retransmissions as far as my PRI's
>> stays stable and the users don't get dropped :(
>>
>> Regards
>> Azher
>> -------------------------------
>> http://www.consulttech.com.pk
>>
>>
>> -----Original Message-----
>> From: asterisk-users-admin at lists.digium.com
>> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>> Scott Stingel
>> Sent: Sunday, March 21, 2004 9:16 PM
>> To: asterisk-users at lists.digium.com
>> Subject: RE: [Asterisk-Users] PRI issues with TE410P
>>
>> Hello Azher-
>>
>> I have a similar setup in hardware, ie: TE410P running on
>> dual-xeon system, however I'm running IVR only. I start
>> getting the I-frame errors above about 80 simultaneous calls.
>> I do not get IRQ misses at all. Also I do not get the
>> startup error messages. The errors I get the most under load
>> are the frame retransmission messages in
>> /var/log/asterisk/messages. Do you get those as well?
>>
>> Since you are getting IRQ misses, you may have some basic
>problem, ie:
>> something keeping the zaptel driver from getting around to
>> servicing the TE410 interrupts. I think that they have to be
>> serviced without fail every
>> 1 msec, or errors start occurring.
>>
>> Which kernel are you running?
>> What does your Perl script do?
>> Did you try disabling mysql logging to lower the disk load?
>> Maybe the disk driver is interfering with the zaptel driver
>> interrupts.
>>
>> Regards
>> Scott
>>
>>
>> Scott M. Stingel
>> Emerging Voice Technology Inc.
>> Palo Alto, California and London, England
>>
>> Email: scott "at " evtmedia.com
>> URL: www.evtmedia.com
>>
>>
>>
>> >-----Original Message-----
>> >From: asterisk-users-admin at lists.digium.com
>> >[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
>> Azher Amin
>> >Sent: Sunday, March 21, 2004 3:41 PM
>> >To: asterisk-users at lists.digium.com
>> >Subject: [Asterisk-Users] PRI issues with TE410P
>> >
>> >Hi,
>> >
>> >I am having some problems mentioned below, the box is in production
>> >live environment with traffic around 30 - 100 calls.
>> >
>> >I am running T/E410P in a Dual P4 xeon with HT disabled. I am using
>> >zaptel 0.9.0 and asterisk stable 1 release. There is no gui, just
>> >mysql, perl (small script) and asterisk.
>> >
>> >System runs very smoothly if the calls are around 40-50 and
>> comes one
>> >by one , however sometimes at immediate load of around 30
>more calls
>> >... I get the following processes in the ps -ax, and
>asterisk starts
>> >droping the calls, irq misses rise and console shows lot of
>> pri errors
>> >(which donot occur in a smooth load of around 50 calls).
>> >
>> >Can someone explain why this happens .. however these get
>> cleared once
>> >the channels are handled.
>> >
>> >20992 pts/3 S 0:01 zttool
>> >21412 ? S 0:00 asterisk
>> >21413 ? R 0:00 asterisk
>> >21418 ? S 0:00 asterisk
>> >21419 ? S 0:00 asterisk
>> >21420 ? S 0:00 asterisk
>> >21421 ? S 0:00 asterisk
>> >21422 ? S 0:00 asterisk
>> >21423 ? S 0:00 asterisk
>> >21424 ? S 0:00 asterisk
>> >21425 ? S 0:00 asterisk
>> >21426 ? S 0:00 asterisk
>> >21427 ? S 0:00 asterisk
>> >21429 ? S 0:00 asterisk
>> >21430 ? S 0:00 asterisk
>> >21431 ? S 0:00 asterisk
>> >21432 ? S 0:00 asterisk
>> >21433 ? S 0:00 asterisk
>> >21434 ? S 0:00 asterisk
>> >21435 ? S 0:00 asterisk
>> >21436 ? S 0:00 asterisk
>> >21437 ? S 0:00 asterisk
>> >21438 ? S 0:00 asterisk
>> >21439 ? S 0:00 asterisk
>> >21440 ? S 0:00 asterisk
>> >21441 ? S 0:00 asterisk
>> >21442 ? S 0:00 asterisk
>> >21443 ? S 0:00 asterisk
>> >21444 ? S 0:00 asterisk
>> >21445 ? S 0:00 asterisk
>> >21446 ? S 0:00 asterisk
>> >21447 ? S 0:00 asterisk
>> >21448 ? S 0:00 asterisk
>> >21449 ? S 0:00 asterisk
>> >21451 ? S 0:00 asterisk
>> >21452 ? S 0:00 asterisk
>> >21453 ? S 0:00 asterisk
>> >21454 ? S 0:00 asterisk
>> >21455 ? S 0:00 asterisk
>> >21456 ? S 0:00 asterisk
>> >21457 ? S 0:00 asterisk
>> >21458 ? S 0:00 asterisk
>> >21459 pts/2 R 0:00 ps -ax
>> >21460 ? S 0:00 asterisk
>> >
>> >
>> >
>> >Further I am also getting
>> >
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got I-frame while link state 2
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got I-frame while link state 2
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got I-frame while link state 2
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got I-frame while link state 2
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got I-frame while link state 2
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got S-frame while link down
>> >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970
>> zt_pri_error: PRI: !!
>> >Got S-frame while link down
>> > == D-Channel on span 1 up
>> >
>> >and certain IRQ misses like around 270 after an operation of
>> 2-3 hours.
>> >
>> >Further when I load the T/E410p card I get this error ...
>> >
>> >Mar 22 00:33:48 VoiceOne kernel: TE410P: Launching card: 0 Mar 22
>> >00:33:48 VoiceOne kernel: TE410P: Setting up global serial
>> parameters
>> >Mar 22 00:33:48 VoiceOne kernel: TE410P: Timing from source
>0 Mar 22
>> >00:33:48 VoiceOne kernel: Found a Wildcard: Wildcard
>> TE410P-Xilinx Mar
>> >22 00:33:48 VoiceOne kernel: Registered tone zone 0 (United
>States /
>> >North America) Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 1
>> >configured for
>> >CCS/HDB3/CRC4
>> >Mar 22 00:33:48 VoiceOne kernel: SPAN 1: Primary Sync Source Mar 22
>> >00:33:48 VoiceOne kernel: Uhhuh. NMI received for unknown reason 20.
>> >Mar 22 00:33:48 VoiceOne kernel: Dazed and confused, but trying to
>> >continue Mar 22 00:33:48 VoiceOne kernel: Do you have a
>> strange power
>> >saving mode enabled?
>> >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 2 configured for
>> >CCS/HDB3/CRC4
>> >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 3 configured for
>> >CCS/HDB3/CRC4
>> >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 4 configured for
>> >CCS/HDB3/CRC4
>> >
>> >I have another card and above also come with that.
>> >
>> >I look forward for resolution on these issues with some
>> suggestions to
>> >improve the stability. Coz otherwise system is not stable to
>> be sold to
>> >client.
>> >
>> >Regards
>> >Azher Amin
>> >-------------------------------
>> >http://www.consulttech.com.pk
>> >
>> >
>> >
>> >
>> >_______________________________________________
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>> >
>>
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