<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:10pt"><div>Hello, <br><br>I'm trying to setup a cenario with 2 sigchan in a linkset. Each sigchan is on an E1 link.<br><br>I have 3 E1 links: <br><br>span=1,0,0,ccs,hdb3,crc4<br>bchan=1-31 # voice only<br><br>span=2,0,0,ccs,hdb3,crc4<br>bchan=32-46,48-62<br>mtp2=47 # sigchan master<br><br>span=3,0,0,ccs,hdb3,crc4<br>bchan=63-77,79-93<br>mtp2=78 # sigchan backup<br><br><br>Here is my linkset configuration:
<br><br>chan_dahdi.conf<br><br>signalling=ss7<br>ss7type=itu<br>ss7_called_nai=dynamic<br>ss7_calling_nai=dynamic<br>networkindicator=national<br>linkset=2<br>pointcode=1<br>defaultdpc=12<br>adjpointcode=12<br><br>sigchan=47<br>group=1<br>cicbeginswith=1<br>context=from-pstn-01<br>channel=>1-31<br><br><br>group=2<br>context=from-pstn-02<br>cicbeginswith=32<br>channel=>32-46<br>cicbeginswith=48<br>channel=>48-62<br><br><br>sigchan=78<br>group=3<br>context=from-pstn-03<br>cicbeginswith=63<br>channel=>63-77<br>cicbeginswith=79<br>channel=>79-93<br><br><br><br>When channel 47 is working, 'ss7 show linkset 2' show 'status: Up'. And I can make calls.<br><br>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). <br><br>Is there any way to have a redundant signal channel? When my sigchan 47 is down, I like to use channel 78 as sigchan.<br><br><br><br>In the remote side of
span3 (asterisk too), I can see the logs below on 'dahdi restart'<br><br>[2] Len = 4 [ ff ff 01 00 ]<br>[2] FSN: 127 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] <[1] LSSU SIO<br>[2]<br>[2] Link state change: ALIGNEDREADY -> IDLE<br>[2] Link state change: IDLE -> NOTALIGNED<br>[2] Len = 4 [ ff ff 01 02 ]<br>[2] FSN: 127 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] <[1] LSSU SIE<br>[2]<br>[2] Link state change: NOTALIGNED -> PROVING<br>[2] T4 expired!<br>[2] Link state change: PROVING -> ALIGNEDREADY<br>[2] Len = 3 [ ff ff 00 ]<br>[2] FSN: 127 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] >[1] FISU<br>[2]<br>[2] Len = 3 [ ff ff 00 ]<br>[2] FSN: 127 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] <[1] FISU<br>[2]<br>[2] Link state change: ALIGNEDREADY -> INSERVICE<br>MTP2 link up (SLC 1)<br>[2] Len = 9 [ ff 80 06 80 01 00 03 10 17 ]<br>[2] FSN: 0 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] >[0] MSU<br>[2] [ ff 80 06 ]<br>[2] Network Indicator: 2
Priority: 0 User Part: NET_MNG (0)<br>[2] [ 80 ]<br>[2] OPC 12 DPC 1 SLS 1<br>[2] [ 01 00 03 10 ]<br>[2] H0: 7 H1: 1<br>[2] Message type: TRA<br>[2] [ 17 ]<br>[2]<br>[2] Len = 20 [ ff 81 11 81 01 00 03 10 11 a0 32 35 36 34 32 38 36 32 38 38 ]<br>[2] FSN: 1 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] >[0] MSU<br>[2] [ ff 81 11 ]<br>[2] Network Indicator: 2 Priority: 0 User Part: STD_TEST (1)<br>[2] [ 81 ]<br>[2] OPC 12 DPC 1 SLS 1<br>[2] [ 01 00 03 10 ]<br>[2] H0: 1 H1: 1<br>[2] [ 11 ]<br>[2]<br>[2] Len = 4 [ ff ff 01 00 ]<br>[2] FSN: 127 FIB 1<br>[2] BSN: 127 BIB 1<br>[2] >[0] LSSU SIO<br>[2]<br><br><br>I will appreciate any help or sugestions.<br><br><br>thanks a
lot.<br><br><br>--<br>Marcus <br><br><br></div></div></body></html>