Summary:	ASTERISK-01055: PRI error and warnings
Reporter:	Tomica Crnek (tcrnek)	Labels:
Date Opened:	2004-02-19 06:40:05.000-0600	Date Closed:	2011-06-07 14:04:57
Priority:	Major	Regression?	No
Status:	Closed/Complete	Components:	Core/General
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	The PRI E1 zap is reporting errors and warnings. Calls drop. ****** ADDITIONAL INFORMATION ****** I have TE410P with one E1 port connected to PSTN and other to local PBX. Last 2 ports I don't use. From time to time I get this WARNINGS Feb 19 12:15:36 WARNING[1209277232]: chan_zap.c:5949 zt_pri_error: PRI: Read on 86 failed: Unknown error 500 PRI got event: 6 Feb 19 12:15:36 WARNING[1217669936]: chan_zap.c:5949 zt_pri_error: PRI: Read on 87 failed: Unknown error 500 PRI got event: 6 Also, from time to time I see that something is happening with E1 d-channel. In this moment I get lot of this messages:  == D-Channel on span 1 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 1 up  == D-Channel on span 1 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up  == D-Channel on span 1 up  == D-Channel on span 2 up In this moment all established calls drop. New calls can not be established. It lasts for seconds up to minute after which time Asterisk resets all b-channels and everything is back again. I have played a little with timing parameter in zaptel.conf but didn't find it better if it is set to 1 (get sync from PSTN) or to 0. If I open zttool in both cases if timing is set to 1 or to 0 it says that it is using internal clock.
Comments:	By: Tomica Crnek (tcrnek) 2004-02-19 06:57:31.000-0600 This is the report from zttool for one of E1 links. What about these IRQ misses? Could here be a problem? How can it be solved? Current Alarms:     No alarms. Sync Source:        Internally clocked IRQ Misses:             199 Bipolar Viol:             0 Tx/Rx Levels:         0/  0 Total/Conf/Act:      31/ 31/  0             1111111111222222222333    1234567890123456789012345789012 TxA ------------------------------- TxB ------------------------------- TxC ------------------------------- TxD ------------------------------- RxA ------------------------------- Zapata Telephony Interfaces RxA ------------------------------- RxB ------------------------------- RxC ------------------------------- RxD ------------------------------- By: zoa (zoa) 2004-02-19 07:50:11.000-0600 thats a lot of irq misses, when was the last reboot ? (Is that 199 misses in 1 day or in 1 year ?) I've seen something similar in the past, if you have this on 1 pri, the other 3 might also go down. By: Tomica Crnek (tcrnek) 2004-02-19 07:52:11.000-0600 Since yesterday afternoon. Is it a hardware problem? By: Mark Spencer (markster) 2004-03-05 10:11:48.000-0600 This looks to me like a channel alignment issue.  I think he needs a new TE410P with a good load on it.  Please contact digium support and let them know you have a TE410P with the "channel alignment" problem.