Hello,

read the dispatcher module docs related to ds_inactive_threshold, ds_ping_interval as well as tm module docs related to retransmission timers .. by tuning their values, you can get faster detection of inactive gateways.

Cheers,
Daniel

Hi

I have setup dispatcher failover on Kamailio 5.1 as below. If destination X.X.X.X is down, traffic should be routed to Y.Y.Y.Y.

The failover is working but every time after 30 sec Timeout. Is there a way to setup health check properly so the failed destination can be ignored while it is down?

Your help is greatly appreciated,

AL

# dispatcher.list

1 sip:X.X.X.X:5060 0 0

1 sip:Y.Y.Y.Y:5060 0 0

# ----- dispatcher params -----

modparam("dispatcher", "list_file", "/usr/local/etc/kamailio/dispatcher.list")

modparam("dispatcher", "flags", 2)

modparam("dispatcher", "ds_ping_interval", 10)

modparam("dispatcher", "dst_avp", "$avp(AVP_DST)")

modparam("dispatcher", "grp_avp", "$avp(AVP_GRP)")

modparam("dispatcher", "cnt_avp", "$avp(AVP_CNT)")

modparam("dispatcher", "sock_avp", "$avp(AVP_SOCK)")

modparam("dispatcher", "ds_probing_mode", 1)

modparam("dispatcher", "ds_inactive_threshold", 4)

modparam("dispatcher", "ds_ping_latency_stats", 1)

modparam("dispatcher", "ds_probing_threshold", 1)

# Dispatch requests

route[DISPATCH] {

   if(!ds_select_dst("1", "4")) {

      send_reply("503", "No destination");

      exit;

   }

   t_on_failure("DISPATCH_FAILOVER");

   route(RELAY);

   exit;

}

# Failure Route

failure_route[DISPATCH_FAILOVER]{

   if (t_is_canceled()) exit;

   if(!ds_next_dst()) {

      send_reply("503", "Out of gateways");

      exit;

   }

   t_on_failure("DISPATCHER_FAILOVER");

   t_relay();

}

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