[Serusers] PSTN gateway failover

[Jiri Kuthan]

Nice.

I'm wondering how the following line is supposed to be executed:

   if (!(avp_db_load($ruri/domain,"s:t_ips/ips")

I mean -- how is $uri/domain interpreted? Or is it just missing " 
in the documented script version that confuses me?

Thanks,

-jiri

At 07:23 PM 11/2/2004, Marian Dumitru wrote:
>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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>
>-- 
>Voice Sistem
>http://www.voice-sistem.ro
>
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--
Jiri Kuthan            http://iptel.org/~jiri/