Hello. I have the mission of implementing a big SS7 cluster using chan_ss7. The channel driver itself works in the simplest case -- with one Asterisk communicating with one switch, I can make and receive calls just fine. More, I can even communicate with two different switches (different DPCs) and I can make and receive calls on either one from the same Asterisk machine -- as long as each of those links has signalling. Groovy. Now, on to the cluster part. I has the setup described in the diagram below, and ss7.conf is just below that. The problem is: the L2 link, from machine 1 to switch sw4, never comes up -- it always show "reset pending" in "ss7 show channels". It's not a physical problem, because if I disconnect the cable from L2 and put in L9 in the other machine (and change ss7.conf in myasthost-03 accordingly for a non-cluster configuration), it does come up. I imagine myasthost-01 was supposed to perform that link's reset by communicating with myasthost-03 through chan_ss7's cluster protocol. For some reason it isn't. It isn't a network problem either, I can see in the logs they "see" each other through port 5040. Our servers are Dell PowerEdge 1950 with Digium TE410P quad-span cards, jumpered for E1, running Fedora Core 6, the latest 1.2 series Asterisk, and chan_ss7 0.9. +-----------------+ +-----------------+ | myasthost-01 | | myasthost-03 | <-- Asterisk Machines | L1 L2 L3 L4 | | L9 L10 L11 L12 | +--+---+---+---+--+ +--+---+---+---+--+ | | | | | | | +---------------------+ +---+ | | | |S | |S +--+-----------------+ +--+--------+--------+ | CIC 1 | | CIC 1 CIC 129 | <-- Ericsson AXE's | Switch sw1 | | Switch sw4 | +--------------------+ +--------------------+ S = Has signalling on timeslot 16 ss7.conf: ---------------------------------------------------------------------- [linkset-sw1] enabled => yes enable_st => no use_connect => yes hunting_policy => even_mru subservice => auto context => ss7 language => da t35 => 15000,timeout subservice => auto [linkset-sw4] enabled => yes enable_st => no use_connect => yes hunting_policy => even_mru subservice => auto context => ss7 language => da t35 => 15000,timeout subservice => auto [link-l1] linkset => sw1 channels => 1-15,17-31 schannel => 16 firstcic => 1 enabled => yes [link-l2] linkset => sw4 channels => 1-31 schannel => firstcic => 1 enabled => yes [link-l10] linkset => sw4 channels => 1-15,17-31 schannel => 16 firstcic => 129 enabled => yes [host-myasthost-01] enabled => yes default_linkset => sw1 opc => 0x3000 dpc => sw1:0x2001,sw4:0x2004 links => l1:1,l2:2 if-1 => 10.10.10.1 [host-myasthost-03] enabled => yes default_linkset => sw4 opc => 0x3fce dpc => sw1:0x2001,sw4:0x2004 links => l10:2 if-1 => 10.10.10.3 [cluster] ; Listen on TCP port 5040 port => 5040 l1 => myasthost-03#if-1 l2 => myasthost-03#if-1 l10 => myasthost-01#if-1 ----------------------------------------------------------------------
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