2 Nov
2004
2 Nov
'04
8:23 p.m.
Hi Andreas,
you can implement GW failover by doing serial fork using AVPOPS module.
Pleas take a look at example number 4 - Serial forking:
http://www.voice-system.ro/docs/avpops/
You can store all GW IPs in database and load them via avp_db_load().
If you don't want to hardcode even your first GW IP and to rely only on
the IP list from AVPs, be sure to push the fist AVP value into RURI in
main route before first sending to GW.
Unfortunately, this approach doesn't offer load-balancing
Best regards,
Marian Dumitru
Andreas Granig wrote:
Hi all,
Since SER does not provide DNS SRV failover capability, how do you
perform failover for your PSTN gateways?
I currently think about some sort of load balancing with exec_dset()
which looks up a gateway in a mysql db and give it 10 tries to find a
gateway (SER is running on my.domain:5060)
route
{
if (!mf_process_maxfwd_header("10"))
{
sl_send_reply("483", "Too many hops");
break;
}
<snip>
exec_dset("/my/sipgw-balancing-script"); # returns a random GW
t_on_failure("1");
t_relay();
<snip>
}
failure_route[1]
{
if(t_check_status("503")
{
rewritehostport("my.domain:5060"); # peform loop
append_branch();
t_relay();
}
}
Is this good practice? Any other ideas/optimizations?
Cheers,
Andy
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