[asterisk-ss7] dahdi chunk_size chan_ss7

Amish amish at 3g.co.za
Mon Apr 19 03:54:11 CDT 2010


Hi,

According the the messages below you received a Status Indication "Out 
of Service" from the remote end.
You need to check what is happening at the remote end and why they are 
sending a SIOS to you.

Best Regards,
Amish


On 04/18/2010 11:36 PM, Goke M Aruna wrote:
> Thanks Amish,
>
> I do not know anything about the 1538, however, from the console i got 
> this message.
>
> i dont have my schannels set as 15 but 16.
>
> Thanks
>
> ================================================================================================
> [Apr 16 13:59:53] NOTICE[20466]: l4isup.c:2354 ss7_read: Audio buffer 
> underrun, data 20 msecs, real time: 123 msecs! (supressed 0)
> [Apr 16 13:59:53] NOTICE[20418]: l4isup.c:2423 ss7_write: Write buffer 
> full on CIC=21 (wrote only 0 of 160), audio lost (suppress 0).
> [Apr 16 13:59:53] NOTICE[20436]: l4isup.c:2423 ss7_write: Write buffer 
> full on CIC=47 (wrote only 0 of 160), audio lost (suppress 0).
> [Apr 16 13:59:53] NOTICE[17618]: mtp.c:1091 mtp2_process_lssu: Got 
> status indication 'OS' while INSERVICE on link 'l1'.
> [Apr 16 13:59:53] WARNING[17618]: chan_ss7.c:126 process_event: MTP is 
> now DOWN on link 'l1'.
> [Apr 16 13:59:53] NOTICE[17618]: mtp.c:637 mtp_changeover: MTP 
> changeover last_ack=6, last_sent=7, from schannel 15, no INSERVICE 
> schannel found
> [Apr 16 13:59:53] NOTICE[17618]: mtp.c:641 mtp_changeover: Failover 
> not possible, no other signalling link and no other host available.
> [Apr 16 13:59:53] WARNING[17618]: chan_ss7.c:126 process_event: MTP is 
> now DOWN on link 'l1'.
>     -- SS7 hangup 'SS7/ewsd/37' CIC=37 Cause=0 (state=4)
>   == Spawn extension (gts, 08089073468, 1) exited non-zero on 
> 'SIP/222-00000ae5'
> [Apr 16 13:59:54] WARNING[17618]: mtp.c:2085 mtp_thread_main: No 
> signalling links inservice and no cluster receivers alive, dropping 
> packet!
>     -- SS7 hangup 'SS7/ewsd/43' CIC=43 Cause=0 (state=4)
>
> =========================================================================================================================
>
>
> On Sun, Apr 18, 2010 at 9:39 PM, Amish <amish at 3g.co.za 
> <mailto:amish at 3g.co.za>> wrote:
>
>     Dear Goke,
>
>
>     Where in the trace do the links fail?
>     I see that at packet 954 and and 956 you receive a TFP, for point
>     code 1538.
>
>     A.
>
>
>
>     On 04/18/2010 10:01 PM, Goke M Aruna wrote:
>>     Dear Amish,
>>
>>     my ss7.conf
>>
>>     [linkset-ewsd]
>>     enabled => yes
>>     enable_st => no
>>     use_connect => no
>>     hunting_policy => seq_lth
>>     subservice => auto
>>     language => en
>>     variant => ITU
>>     context => outbound
>>     ;sltm => no
>>
>>     [link-l1]
>>     linkset => ewsd
>>     channels => 1-15,17-31
>>     schannel => 16
>>     firstcic => 1
>>     enabled => yes
>>
>>     [link-l2]
>>     linkset => ewsd
>>     channels => 1-15,17-31
>>     schannel =>
>>     firstcic => 33
>>     enabled => yes
>>
>>     [link-l3]
>>     linkset => ewsd
>>     channels => 1-15,17-31
>>     schannel =>
>>     firstcic => 65
>>     enabled => yes
>>
>>     [link-l4]
>>     linkset => ewsd
>>     channels => 1-15,17-31
>>     schannel =>
>>     firstcic => 97
>>     enabled => yes
>>
>>
>>     [host-brooks1]
>>     enabled => yes
>>     opc => 1366
>>     dpc => ewsd:1304
>>     links => l1:1,l2:2,l3:3,l4:4
>>
>>     the setup is as below.
>>
>>     [ IP SIP calls] <== (ethernet / internet) ==> [asterisk /
>>     chan_ss7 box PC=1366] <==(ss7 link (1 signalling 4 E1s)) ==>
>>     [EWSD  PC=1304 ] <== (ss7 links) ==> [GSM / CDMA operators]
>>
>>     Thanks
>>
>>     On Sun, Apr 18, 2010 at 1:39 PM, Amish Chana <amish at 3g.co.za
>>     <mailto:amish at 3g.co.za>> wrote:
>>
>>         Dear Goke,
>>
>>         Can you post the ss7.conf file.
>>         Can you provide a diagram of the flow of voice calls and
>>         signalling?
>>         How are you generating the call traffic?
>>         >From the trace it looks like all the traffic is generated by
>>         point code 1366 and sent to 1304. How many signalling links
>>         do you have?
>>         I assume you have chan_ss7 at 1366? What protocol stack do
>>         you have at 1304?
>>         Where in the trace do the links fail?
>>         I see that at packet 954 and and 956 you receive a TFP, for
>>         point code 1538.
>>
>>         Best Regards,
>>         Amish
>>
>>
>>
>>         On 04/16/2010 07:28 PM, Goke M Aruna wrote:
>>>         Amish,
>>>
>>>         Thanks everybody for your response so far.
>>>
>>>         however, after loading the call to certain 78 simultaneous
>>>         calls and the signalling just failed and the dump is as
>>>         attached.
>>>         I tried disabling the sltm, asterisk refuse to start giving
>>>         me the error "unknown options".
>>>
>>>         kindly help.
>>>
>>>
>>>
>>>         On Wed, Apr 14, 2010 at 8:44 PM, Goke M Aruna
>>>         <goksie at gmail.com <mailto:goksie at gmail.com>> wrote:
>>>
>>>             Log messages.
>>>
>>>             On 4/14/10, Amish <amish at 3g.co.za
>>>             <mailto:amish at 3g.co.za>> wrote:
>>>             > On 04/14/2010 02:32 AM, Goke M Aruna wrote:
>>>             >> Thanks Amish,
>>>             >>
>>>             >> the links have been up for the last 4 hours with
>>>             minor error util.c :
>>>             >> failed to delete timer.
>>>             >>
>>>             > Hi,
>>>             >
>>>             > Where this this error appear? The asterisk messages
>>>             file or the console?
>>>             > I don't see this error in my
>>>             /var/log/asterisk/messages file.
>>>             >
>>>             > Cheers,
>>>             > A.
>>>             >
>>>             >
>>>
>>>             --
>>>             Sent from my mobile device
>>>
>>>
>>
>>
>
>

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