[asterisk-ss7] Error: cause 34 - Circuit/channel congestion
Marcus Vinicius
marc_mcs10 at yahoo.com.br
Fri Sep 28 09:16:01 CDT 2012
Hi,
I have 5 E1 with libss7 1.0.2 and Asterisk 1.8.10.1.
The first one is with one telco and the others are with another telco.
I noticed that after some weeks running, four of my circuit stop working. I can't make calls. But I can receive calls without problem.
When this happens, I can't see any IAM message on outgoing calls.
When I try to make calls, I receive:
-- Executing [1030851732342778 at from-sip:1] Goto("SIP/Rede-00000e9a", "telefonica-ld85,0851732342778,1") in new stack
-- Goto (telefonica-ld85,0851732342778,1)
-- Executing [0851732342778 at telefonica-ld85:1] Set("SIP/Rede-00000e9a", "CALLERPRES()=allowed") in new stack
-- Executing [0851732342778 at telefonica-ld85:2] Dial("SIP/Rede-00000e9a", "DAHDI/r2/0851732342778,200") in new stack
[Sep 27 17:03:44] WARNING[1072]: app_dial.c:2218 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion)
== Everyone is busy/congested at this time (1:0/1/0)
-- Executing [0851732342778 at telefonica-ld85:3] Dial("SIP/Rede-00000e9a", "DAHDI/r12/0851732342778,200") in new stack
[Sep 27 17:03:44] WARNING[1072]: app_dial.c:2218 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion)
== Everyone is busy/congested at this time (1:0/1/0)
-- Executing [0851732342778 at telefonica-ld85:4] Hangup("SIP/Rede-00000e9a", "") in new stack
== Spawn extension (telefonica-ld85, 0851732342778, 4) exited non-zero on 'SIP/Rede-00000e9a'
I receive this error: "cause 34 - Circuit/channel congestion", but Asterisk didn't even send the IAM message.
My linkset is UP all the time:
SRR-JT-MGA01*CLI> dahdi show status
Description Alarms IRQ bpviol CRC Fra Codi Options LBO
AP408 Card 1 Span 1 OK 0 0 0 CCS HDB3 0 db (CSU)/0-133 feet (DSX-1)
AP408 Card 1 Span 2 OK 0 0 0 CCS HDB3 0 db (CSU)/0-133 feet (DSX-1)
AP408 Card 1 Span 3 OK 0 0 0 CCS HDB3 0 db (CSU)/0-133 feet (DSX-1)
AP408 Card 1 Span 4 OK 0 0 0 CCS HDB3 0 db (CSU)/0-133 feet (DSX-1)
AP408 Card 1 Span 5 OK 0 0 0 CCS HDB3 0 db (CSU)/0-133 feet (DSX-1)
SRR-JT-MGA01*CLI> ss7 show linkset 3
SS7 linkset 3 status: Up
SRR-JT-MGA01*CLI> dahdi show channels group 2
Chan Extension Context Language MOH Interpret Blocked State
32 from-pstn-02 br default In Service
33 from-pstn-02 br default In Service
34 from-pstn-02 br default In Service
35 from-pstn-02 br default In Service
36 from-pstn-02 br default In Service
37 from-pstn-02 br default In Service
38 from-pstn-02 br default In Service
39 from-pstn-02 br default In Service
40 from-pstn-02 br default In Service
41 from-pstn-02 br default In Service
42 from-pstn-02 br default In Service
43 from-pstn-02 br default In Service
44 from-pstn-02 br default In Service
45 from-pstn-02 br default In Service
46 from-pstn-02 br default In Service
47 from-pstn-02 br default In Service
125 from-pstn-05 br default In Service
126 from-pstn-05 br default In Service
127 from-pstn-05 br default In Service
128 from-pstn-05 br default In Service
129 from-pstn-05 br default In Service
130 from-pstn-05 br default In Service
131 from-pstn-05 br default In Service
132 from-pstn-05 br default In Service
133 from-pstn-05 br default In Service
134 from-pstn-05 br default In Service
135 from-pstn-05 br default In Service
136 from-pstn-05 br default In Service
137 from-pstn-05 br default In Service
138 from-pstn-05 br default In Service
139 from-pstn-05 br default In Service
140 from-pstn-05 br default In Service
To solve this issue, I need to make a "dahdi restart" command.
After this, all come back to normally.
But after several weeks (maybe five or six) I have the same problem again.
Anyone knows how can I make a more specific debug to diagnostic this?
Config:
; SS7 GENERAL CONFIG
signalling=ss7
ss7type=itu
ss7_called_nai=dynamic
ss7_calling_nai=dynamic
networkindicator=national
; ===== ===== THIS LINKSET WORKS WITH NO PROBLEM ALL THE TIME ===== ===== ;
linkset=1
;span 1
pointcode=781
defaultdpc=678
adjpointcode=678
context=from-pstn-01
group=1
cicbeginswith=1
channel=>1-15
group=11
cicbeginswith=301
channel=>17-31
sigchan=16
; ===== ===== THIS LINKSET STOPS WORKING AFTER SOME WEEKS ===== ===== ;
linkset=3
pointcode=882
; span 2
defaultdpc=2561
context=from-pstn-02
group=2
cicbeginswith=1
channel=>32-47
group=12
cicbeginswith=17
channel=>48-62
; span 3
defaultdpc=3993
context=from-pstn-03
group=3
cicbeginswith=1
channel=>63-77
group=13
cicbeginswith=17
channel=>79-93
; span 4
defaultdpc=3994
context=from-pstn-04
group=3,4
cicbeginswith=1
channel=>94-108
group=13,4
cicbeginswith=17
channel=>110-124
; span 5
defaultdpc=3995
context=from-pstn-05
group=2,5
cicbeginswith=1
channel=>125-140
group=12,5
cicbeginswith=17
channel=>141-155
adjpointcode=223
sigchan=109
sigchan=78
Thanks a lot,
--
Marcus Vinícius
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