[asterisk-ss7] MTP Link Down SLC (0) SLC (1)

[Vashkar Chatterjee]

Check transmission for faults.  Do you get BAD FCS HDLC abort?  Check for
the line error, code violation etc from dahdi maint tool

-Vashkar
On Feb 15, 2012 1:04 PM, "Bharat Lalcheta" <bharatlalcheta at gmail.com> wrote:

> Thanks for reply.
> Telco enabled crc and first server working fine on it.
>
> On Wed, Feb 15, 2012 at 12:24 PM, Vashkar Chatterjee <vashkar at gmail.com>wrote:
>
>> Checm if telco had crc enabled or not. If not turn off crc
>> On Feb 15, 2012 12:45 PM, "Bharat Lalcheta" <bharatlalcheta at gmail.com>
>> wrote:
>>
>>> Hii,
>>>
>>> I have 2 servers with dual core 3 GHz dual cpu with 2 GB RAM and having
>>> 2 * TE410P digium, total 8 port for inbound calling.
>>>
>>> using asterisk-1.6.2.9, dahdi-2.5, libss7 SVN latest version
>>>
>>> Both server has same setup, 8 E1's with 2 Signalling channels from same
>>> telco.
>>>
>>> follwoing is chan_dahdi.conf
>>>
>>> [channels]
>>> group=0
>>> linkset = 1
>>> signalling = ss7
>>> ss7type = itu
>>> ss7_called_nai=national
>>> ss7_calling_nai=national
>>> context=ivrs
>>> pointcode = 2
>>> adjpointcode = XXXXX
>>> defaultdpc = XXXXX
>>> networkindicator=national
>>> sigchan = 16
>>> cicbeginswith=1
>>> channel = 1-15
>>> cicbeginswith = 17
>>> channel = 17-31
>>> sigchan = 47
>>> cicbeginswith = 33
>>> channel = 32-46
>>> cicbeginswith = 49
>>> channel = 48-62
>>> cicbeginswith = 65
>>> channel = 63-93
>>> cicbeginswith = 97
>>> channel = 94-124
>>> cicbeginswith = 129
>>> channel = 125-155
>>> cicbeginswith = 161
>>> channel = 156-186
>>> cicbeginswith = 193
>>> channel = 187-217
>>> cicbeginswith = 225
>>> channel = 218-248
>>> following is the system.conf
>>>
>>> span=1,1,0,ccs,hdb3,crc4
>>> bchan=1-15,17-31
>>> mtp2=16
>>> span=2,2,0,ccs,hdb3,crc4
>>> bchan=32-46,48-62
>>> mtp2=47
>>> span=3,3,0,ccs,hdb3,crc4
>>> bchan=63-93
>>> span=4,4,0,ccs,hdb3,crc4
>>> bchan=94-124
>>> span=5,5,0,ccs,hdb3,crc4
>>> bchan=125-155
>>> span=6,6,0,ccs,hdb3,crc4
>>> bchan=156-186
>>> span=7,7,0,ccs,hdb3,crc4
>>> bchan=187-217
>>> span=8,8,0,ccs,hdb3,crc4
>>> bchan=218-248
>>> span=9,9,0,ccs,hdb3,crc4
>>> bchan=249-279
>>> span=10,10,0,ccs,hdb3,crc4
>>> bchan=280-310
>>> span=11,11,0,ccs,hdb3,crc4
>>> bchan=311-341
>>> span=12,12,0,ccs,hdb3,crc4
>>> bchan=342-372
>>> loadzone        = in
>>> defaultzone     = in
>>>
>>> Now one server working fine with 8 E1s in regular or heavy traffic of
>>> inbound.
>>>
>>> But in second server, its giving following warning at every 8-10 minutes
>>> [Feb 15 12:04:52] WARNING[13950] chan_dahdi.c: MTP2 link down (SLC 1)
>>> [Feb 15 12:04:52] WARNING[13950] chan_dahdi.c: MTP2 link down (SLC 0)
>>> Also when traffic is high, i.e. more than 220-230 calls, suddenly all
>>> calls get disconnected at same time. No other warning or error at that
>>> time, only above MTP2 link down message there. No flactuation in E1 media
>>> at my side or telco side.
>>>
>>> Please guide me to solve above problem.
>>>
>>>
>>> Bharat Lalcheta
>>>
>>> --
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>>>
>>
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>
>
>
> --
> Bharat Lalcheta
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
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