Hello, I'm trying to setup a cenario with 2 sigchan in a linkset. Each sigchan is on an E1 link. I have 3 E1 links: span=1,0,0,ccs,hdb3,crc4 bchan=1-31??? # voice only span=2,0,0,ccs,hdb3,crc4 bchan=32-46,48-62 mtp2=47??? ??? # sigchan master span=3,0,0,ccs,hdb3,crc4 bchan=63-77,79-93 mtp2=78??? ??? # sigchan backup Here is my linkset configuration: chan_dahdi.conf signalling=ss7 ss7type=itu ss7_called_nai=dynamic ss7_calling_nai=dynamic networkindicator=national linkset=2 pointcode=1 defaultdpc=12 adjpointcode=12 sigchan=47 group=1 cicbeginswith=1 context=from-pstn-01 channel=>1-31 group=2 context=from-pstn-02 cicbeginswith=32 channel=>32-46 cicbeginswith=48 channel=>48-62 sigchan=78 group=3 context=from-pstn-03 cicbeginswith=63 channel=>63-77 cicbeginswith=79 channel=>79-93 When channel 47 is working, 'ss7 show linkset 2' show 'status: Up'. And I can make calls. But if I disconnect the cable of the span 2, then the states of linkset is 'down'. I can't sincronize with channel 78 (span3). Is there any way to have a redundant signal channel? When my sigchan 47 is down, I like to use channel 78 as sigchan. In the remote side of span3 (asterisk too), I can see the logs below on 'dahdi restart' [2] Len = 4 [ ff ff 01 00 ] [2] FSN: 127 FIB 1 [2] BSN: 127 BIB 1 [2] <[1] LSSU SIO [2] [2] Link state change: ALIGNEDREADY -> IDLE [2] Link state change: IDLE -> NOTALIGNED [2] Len = 4 [ ff ff 01 02 ] [2] FSN: 127 FIB 1 [2] BSN: 127 BIB 1 [2] <[1] LSSU SIE [2] [2] Link state change: NOTALIGNED -> PROVING [2] T4 expired! [2] Link state change: PROVING -> ALIGNEDREADY [2] Len = 3 [ ff ff 00 ] [2] FSN: 127 FIB 1 [2] BSN: 127 BIB 1 [2] >[1] FISU [2] [2] Len = 3 [ ff ff 00 ] [2] FSN: 127 FIB 1 [2] BSN: 127 BIB 1 [2] <[1] FISU [2] [2] Link state change: ALIGNEDREADY -> INSERVICE MTP2 link up (SLC 1) [2] Len = 9 [ ff 80 06 80 01 00 03 10 17 ] [2] FSN: 0 FIB 1 [2] BSN: 127 BIB 1 [2] >[0] MSU [2] [ ff 80 06 ] [2]???? Network Indicator: 2 Priority: 0 User Part: NET_MNG (0) [2]???? [ 80 ] [2]???? OPC 12 DPC 1 SLS 1 [2]???? [ 01 00 03 10 ] [2]???? H0: 7 H1: 1 [2]???? Message type: TRA [2]???? [ 17 ] [2] [2] Len = 20 [ ff 81 11 81 01 00 03 10 11 a0 32 35 36 34 32 38 36 32 38 38 ] [2] FSN: 1 FIB 1 [2] BSN: 127 BIB 1 [2] >[0] MSU [2] [ ff 81 11 ] [2]???? Network Indicator: 2 Priority: 0 User Part: STD_TEST (1) [2]???? [ 81 ] [2]???? OPC 12 DPC 1 SLS 1 [2]???? [ 01 00 03 10 ] [2]???? H0: 1 H1: 1 [2]???? [ 11 ] [2] [2] Len = 4 [ ff ff 01 00 ] [2] FSN: 127 FIB 1 [2] BSN: 127 BIB 1 [2] >[0] LSSU SIO [2] I will appreciate any help or sugestions. thanks a lot. -- Marcus -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20120305/0f0b1c49/attachment.htm>
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