[SR-Users] Issue with LCR an failover routers

Alberto Sagredo alberto.sagredo at avanzada7.com
Mon May 30 20:12:53 CEST 2016


Hi

Im using LCR module and trying to handle 503/408 errors on provider to
route to a second one.

Actually im using


if(!load_gws(1, $rU, $var(caller_uri))) {

    xlog("Gateways no disponibles");

    sl_send_reply("500", "Server Internal Error - No gateway");

    exit;

  } else {

        xlog("GW Seleccionado '$avp(i:709)'\n");

        xlog("Dominio de destino: $dd\n");

        xlog("To URI: $tu\n");

  }


  if(!next_gw()) {

    xlog("No hay GW de Backup");

    sl_send_reply("503", "Service not available - No gateway");

    exit;

  } else {

        xlog("Enviado por primer GW\n");

        xlog("ruri_user_avp: '$avp(i:500)'\n");

        xlog("To URI after next_gw: $tu\n");

        xlog("Request URI: $rU\n");


        t_on_failure("FAILBACK");

  }




failure_route[FAILBACK] {


    if (t_is_canceled()) {

        exit;

    }


    if (t_check_status("408|50[34]")) {


    route(LCR_OUT_OP2);


    }


}


And using for OP2 same routing block with id=3...


This second providers use AUTH so using:


  t_on_failure("TRUNKAUTH");


failure_route[TRUNKAUTH] {


    if (t_is_canceled()) {

        exit;

    }



    if(t_check_status("401|407")) {


        if (to_gw("3")) {

        xlog("Autenticación ");

        $avp(auser) = "user";

        $avp(apass) = "pass";

        }



        uac_auth();

        t_relay();

        exit;

    }


But getting this error:


May 30 09:59:05 kamailio /usr/local/sbin/kamailio[21602]: ERROR: tm
[t_fwd.c:1704]: t_forward_nonack(): ERROR: t_forward_nonack: no branches
for forwarding

May 30 09:59:05 kamailio /usr/local/sbin/kamailio[21602]: ERROR: tm
[tm.c:1466]: _w_t_relay_to(): ERROR: w_t_relay_to: t_relay_to failed



Any idea how to resolve that?
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