[OpenSIPS-Users] Drouting failover by carrier only

[Bogdan-Andrei Iancu]

Hi Alex,

Have you tried the "use only the first GW" flag in the carrier 
definition? See 
https://opensips.org/html/docs/modules/3.0.x/drouting.html#idp25339408, 
"Carriers" subsection:

flags : 0x1 - use weight for sorting the list and not definition order; 
0x2 - use only the first gateway from the carrier (depending on the 
sorting); 0x4 - disable the usage of this carrier

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com

On 4/29/20 9:38 PM, Alex A wrote:
> Hi Everyone,
>
> Is it possible to failover to next carrier (instead next gateway) 
> while using drouting?
>
>
> I got the below to work; however currently, use_next_gw gets the next 
> gateway in the list, so
> if gwlist= #0,#3
>
> and one of the carriers has multiple gateway IPs, the retry happens 
> many times to the same carrier:
>
>
> route[droute] {
>
>         xlog("DRoute GATEWAY: source:$si - $fU -> $rU\n");
>         if (!do_routing(0,"F")) {
>                 xlog("DRoute GATEWAY: Failed. source:$si -$fU -> $rU\n");
>                 send_reply(500, "No Gateway to Route found");
>                 exit;
>         }
>         route(relay);
>         exit;
>
>         }
>
> route[relay] {
>
>         if (is_method("INVITE")) {
>                 t_on_failure("missed_call");
>         }
>
>         if (!t_relay()) {
>                 if (use_next_gw()) {
>                       xlog("L_INFO","Next Gateway: From=$fu, 
> To=$tu,RU=$ru, CI=$ci IP=$si\n");
>                       t_on_failure("missed_call");
>                       route(relay);
>                       exit;
>                 }
>                 else {
>                         send_reply(503, "Service not available, no 
> more gws");
>                         exit;
>                 }
>         };
>         exit;
> }
>
>
> failure_route[missed_call] {
>
>                 #if (use_next_gw(, , $var(carrier_attrs))) {
>                 if (use_next_gw(, $avp(gw_id),$avp(carrier_id))) {
>                       xlog("MissedCall--Next Gateway: From=$fu, 
> To=$tu,RU=$ru, CI=$ci IP=$si\n");
>                       xlog("Carrier attributes of current gateway: 
> $avp(gw_id). carrier: $avp(carrier_id)\n");
>
>                       t_on_failure("missed_call");
>                       route(relay);
>                       exit;
>                 }
>                 else {
>                         send_reply(503, "Service not available, no 
> more gws");
>                         exit;
>                 }
>
>
>
>
> Thank you.
>
>
>
>
>
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