[Asterisk-Users] HDLC errors on PRI

[Matthew Fredrickson]

Yeah, post your relevant portions of zaptel.conf.  Usually it's a 
timing problem if you have HDLC abort errors.

Matthew Fredrickson

On Nov 6, 2005, at 11:32 PM, kurt turner wrote:

>
> Sounds like a timing issue or interop issue.  Get rid of the NFAS (3rd 
> t1 with all B channels) and make them all plain PRIs without D channel 
> sharing.
>
> Jason Walker <desktophero at gmail.com> wrote:
>>  
>>  
>> I have looked through other postings to the user group for HDLC 
>> errors, went through what worked for other people, and still can not 
>> seem to get past this issue.
>>  
>> For 3 days, I have been getting HDLC abort(6) errors in *. Prior to 
>> Tuesday, the circuits were clean...I had maybe 10 HDLC abort messages 
>> since August 10th.
>>  
>> Here are my specs:
>>  
>>  
>> 1 Gig IBM x300 w/ 1 Gig Ram
>> 1 Quad TE405P card
>> No errors on IRQs
>> IRQs are separated with NO sharing
>> hdparm for irq and dma are set to 'on'
>>  
>> Software -
>>  
>> FC1 with -1 updates to kernel, etc.
>> Asterisk v 1.0.9, libpri 1.0.9, zaptel 1.0.9.2
>>  
>> 1 T1 is a tieline to our Nortel Meridian
>> 3 T1s are a PRI trunk group with D chans on 24 and 48. The third T1 
>> only has b channels.
>>  
>> No alarms from zttool.
>>  
>> Calls go through, inbound and outbound.
>>  
>> About every 5 seconds, I get the following on the console:
>> Nov  4 21:10:37 NOTICE[9693]: PRI got event: Alarm (4) on Secondary 
>> D-channel of span 1
>> Nov  4 21:10:37 NOTICE[9693]: PRI got event: HDLC Abort (6) on 
>> Primary D-channel of span 1
>>  
>> The errors seem to increase as calls come in and out. There is also a 
>> noticable "popping" when the error happens.
>>  
>> Any suggestions are welcome.
>>  
>> thank you
>>  
>> Jason
>>  
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