[asterisk-ss7] Sporadic SS7 Link Down

[James zhu]

hi:
please show the system.conf file,  cat IRQ. i think something is wrong with MTP, possbile reasons are:card problem or card setting.
Best regards,
James.zhu
Doing asterisk/PRI/ss7/dahdi, linux, asterisk cards, gateway(fxs/fxo/pri<->SIP).
website: www.voipviews.com 


Date: Fri, 15 Jul 2011 19:05:44 -0400
From: vappleyard at gmail.com
To: asterisk-ss7 at lists.digium.com
Subject: [asterisk-ss7] Sporadic SS7 Link Down

Hi people!I have DAHDI Version: 2.4.0 with Asterisk 1.6.2.13 and libss7 1.0.2. Sometimes the link was down and up (that is sporadic). The system doesn't have many calls even.

Any suggestion?Is a problem of PSTN or is a problem with my digium?
Thanks!
Here is a debug result with the error....




Len = 25 [ 8e 8d 16 81 83 09 02 00 21 f0 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 ]FSN: 13 FIB 1BSN: 14 BIB 1>[0] MSU[ 8e 8d 16 ]
        Network Indicator: 2 Priority: 0 User Part: STD_TEST (1)        [ 81 ]        OPC 8 DPC 2435 SLS 0        [ 83 09 02 00 ]        H0: 1 H1: 2        [ 21 ]

Len = 25 [ 8d 8f 16 b1 08 c0 60 02 11 f0 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 ]FSN: 15 FIB 1BSN: 13 BIB 1<[0] MSU[ 8d 8f 16 ]        Network Indicator: 2 Priority: 3 User Part: STD_TEST (1)
        [ b1 ]        OPC 2435 DPC 8 SLS 0        [ 08 c0 60 02 ]        H0: 1 H1: 1        [ 11 ]
Len = 25 [ 8f 8e 16 81 83 09 02 00 21 f0 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 ]
FSN: 14 FIB 1BSN: 15 BIB 1>[0] MSU[ 8f 8e 16 ]        Network Indicator: 2 Priority: 0 User Part: STD_TEST (1)        [ 81 ]        OPC 8 DPC 2435 SLS 0
        [ 83 09 02 00 ]        H0: 1 H1: 2        [ 21 ]
Len = 4 [ 8e 90 01 03 ]FSN: 16 FIB 1BSN: 14 BIB 1<[0] LSSU SIOS

Link state change: INSERVICE -> IDLELink state change: IDLE -> NOTALIGNED[Jul 15 18:24:45] WARNING[19341]: chan_dahdi.c:11634 ss7_linkset: MTP2 link down (SLC 0)
Len = 4 [ ff ff 01 00 ]FSN: 127 FIB 1BSN: 127 BIB 1>[0] LSSU SIO
Len = 4 [ ff ff 01 00 ]FSN: 127 FIB 1BSN: 127 BIB 1<[0] LSSU SIO

Link state change: NOTALIGNED -> ALIGNEDLen = 4 [ ff ff 01 02 ]FSN: 127 FIB 1BSN: 127 BIB 1>[0] LSSU SIE
Len = 4 [ ff ff 01 01 ]
FSN: 127 FIB 1BSN: 127 BIB 1<[0] LSSU SIN
Link state change: ALIGNED -> PROVINGT4 expired!Link state change: PROVING -> ALIGNEDREADY
Len = 3 [ ff ff 00 ]FSN: 127 FIB 1BSN: 127 BIB 1>[0] FISU
Len = 3 [ ff ff 00 ]FSN: 127 FIB 1BSN: 127 BIB 1<[0] FISU

Link state change: ALIGNEDREADY -> INSERVICEMTP2 link up (SLC 0)Len = 20 [ ff 80 11 81 83 09 02 00 11 a0 32 35 36 34 32 38 36 32 38 38 ]FSN: 0 FIB 1
BSN: 127 BIB 1>[0] MSU[ ff 80 11 ]        Network Indicator: 2 Priority: 0 User Part: STD_TEST (1)        [ 81 ]        OPC 8 DPC 2435 SLS 0        [ 83 09 02 00 ]
        H0: 1 H1: 1        [ 11 ]
Len = 25 [ 80 80 16 b1 08 c0 60 02 11 f0 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 ]FSN: 0 FIB 1BSN: 0 BIB 1<[0] MSU
[ 80 80 16 ]        Network Indicator: 2 Priority: 3 User Part: STD_TEST (1)        [ b1 ]        OPC 2435 DPC 8 SLS 0        [ 08 c0 60 02 ]        H0: 1 H1: 1
        [ 11 ]
Len = 25 [ 80 81 16 81 83 09 02 00 21 f0 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 ]FSN: 1 FIB 1BSN: 0 BIB 1>[0] MSU[ 80 81 16 ]
        Network Indicator: 2 Priority: 0 User Part: STD_TEST (1)        [ 81 ]        OPC 8 DPC 2435 SLS 0        [ 83 09 02 00 ]        H0: 1 H1: 2        [ 21 ]

Len = 20 [ 80 81 11 b1 08 c0 60 02 21 a0 32 35 36 34 32 38 36 32 38 38 ]FSN: 1 FIB 1BSN: 0 BIB 1<[0] MSU[ 80 81 11 ]        Network Indicator: 2 Priority: 3 User Part: STD_TEST (1)
        [ b1 ]        OPC 2435 DPC 8 SLS 0        [ 08 c0 60 02 ]        H0: 1 H1: 2        [ 21 ]




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