[asterisk-ss7] FCS/HDLC errors

[Tomasz Paszkowski]

You may try to use hardhdlc (if you are using Digium/Sangoma). But those errors
indicate that something is wrong with your E1/T1 link or with card (I had very
similar problems with tor2 card).

On Mon, Oct 30, 2006 at 07:51:12AM +0200, Charl Barnard wrote:
> Hi all,
> Running a very recent version of asterisk and libss7, things seem mostly OK,
> being able to place and receive calls, but with many of the following errors
> logged:
> 
> [Oct 30 07:40:10] ERROR[9194] chan_zap.c: !! Unable to handle SIG_NET_MNG
> messag
> e with H1 = 1 and H0 = 4
> [Oct 30 07:40:10] ERROR[9194] chan_zap.c: Received error from mtp3 layer: -1
> [Oct 30 07:40:29] ERROR[9195] chan_zap.c: Bad FCS!
> [Oct 30 07:40:34] ERROR[9194] chan_zap.c: !! Unable to handle SIG_NET_MNG
> messag
> e with H1 = 1 and H0 = 4
> [Oct 30 07:40:34] ERROR[9194] chan_zap.c: Received error from mtp3 layer: -1
> [Oct 30 07:40:52] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:42:22] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:42:36] ERROR[9195] chan_zap.c: !! Unable to handle SIG_NET_MNG
> messag
> e with H1 = 1 and H0 = 4
> [Oct 30 07:42:36] ERROR[9195] chan_zap.c: Received error from mtp3 layer: -1
> [Oct 30 07:42:45] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:42:45] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:43:08] ERROR[9195] chan_zap.c: Bad FCS!
> [Oct 30 07:43:53] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:44:16] ERROR[9194] chan_zap.c: Error in write Unknown error
> 500[Oct 3
> 0 07:44:16] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Bad FCS!
> [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Bad FCS!
> [Oct 30 07:44:16] ERROR[9194] chan_zap.c: HDLC Abort!
> [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Error in write Unknown error
> 500[Oct 3
> 0 07:44:16] ERROR[9195] chan_zap.c: Bad FCS!
> 
> Any ideas of what may be causing this?
> 
> Thanks,
> Charl
> 
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-- 
Tomasz Paszkowski
Systems engineer
DCG Dominas Consulting Group Sp. z o.o.
http://www.dcg.pl
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