AsteriskGuru Archives

alex at microlink.com.br · Guest

Hi everybody,

I just installed asterisk, but this NOTICE dont stop appearing on my log file;;

Feb 17 18:30:11 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:29:42 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:29:41 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:29:41 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:27:11 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:26:51 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:25:11 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:24:41 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:22:21 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:21:16 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:15 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:15 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:15 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:15 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:21:15 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:14 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:14 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:14 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:13 NOTICE[1336]: PRI got event: HDLC Abort (6) on Primary D-channel
of span 4
Feb 17 18:21:12 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:11 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4
Feb 17 18:21:01 NOTICE[1336]: PRI got event: HDLC Bad FCS (8) on Primary
D-channel of span 4

And from time to time this is happening....

-- B-channel 0/1 successfully restarted on span 4
-- B-channel 0/2 successfully restarted on span 4
-- B-channel 0/3 successfully restarted on span 4
-- B-channel 0/4 successfully restarted on span 4
[...]
-- B-channel 0/29 successfully restarted on span 4
-- B-channel 0/30 successfully restarted on span 4
-- B-channel 0/31 successfully restarted on span 4

And the conversation stops.

Telco, with a traffic analyzer, says that the clock is sliding.

Does anybody knows what can it be? Hardware, software, transmission (conectors)
etc.... ?

Thanks in advance.
--
Alex G Robertson
NOC - Microlink

alex at microlink.com.br · Guest

Some news.....

It is not caused by transmission lines, conectors or anything like that.

The telco tecnician just came here and analyzed the circuit and he got no erros!

He sugested me to loop my PRI port in the balum attached in my asterisk box.
And.... Surprise...

I got the same errors!
The error is on my hardware/software.

[]s
Alex Robertson

Alex G Robertson wrote:

asterisk_biz at deeptown. · Guest

This is happens because of imperfect HDLC code. I am having the same in
my logs, but quite rare
and on spans which is idle. Therefore this is not an issue with PRIs itself.

I may be wrong, but telco technician checked my PRIs as well, and didn't
find any flaws.
I can tell you more. IT happens when server not being rebooted for quite
long time.
Right now I am rebooting server every day or two.

Alex G Robertson wrote:

eric at fnords.org (Eric · Guest

Yes. There are lots of messages in the mailing list archives
regarding this problem, some of them even include things to try. You
didn't see these messages when you searched the mailing list archives?

Alex G Robertson wrote:

alex at microlink.com.br · Guest

tim panton wrote:
[..]