[Users] Problem with module dispatcher funtion ds_next_dst()

[Jose Gil Navarrete]

Hi, somebody can help me?? I am trying  to set up OpenSer 1.0.1 like dispatcher to loadbalance and failover but when I use ds_next_dst() for failover I obtain the next error:
 0(19024) parse error (128,25-26): unknown command, missing loadmodule?

ERROR: bad config file (1 errors)


My config file is the next:

loadmodule "/lib/openser/modules/sl.so"
loadmodule "/lib/openser/modules/tm.so"
loadmodule "/lib/openser/modules/rr.so"
loadmodule "/lib/openser/modules/maxfwd.so"
loadmodule "/lib/openser/modules/usrloc.so"
loadmodule "/lib/openser/modules/registrar.so"
loadmodule "/lib/openser/modules/textops.so"
loadmodule "/lib/openser/modules/dispatcher.so"
loadmodule "/lib/openser/modules/avpops.so"

modparam("dispatcher", "list_file", "/usr/local/etc/openser/dispatcher.list")
modparam("dispatcher", "force_dst", 1)
modparam("dispatcher", "flags", 2)



route{

        if ( !mf_process_maxfwd_header("10") )
        {
                sl_send_reply("483","To Many Hops");
                drop();
        };

        ds_select_dst("2","0");
        sl_send_reply("100","Trying");
        forward(uri:host, uri:port);
        t_on_failure("1");
        if (!t_relay()) {
                sl_reply_error();
                return;
        };
}


failure_route[1] {

    if (t_check_status("408")) {     
        if (ds_next_dst()) {
            # On Failure: Choose next Proxy
            t_on_failure("1");
            # Relay to Proxy
            t_relay();
        } else {
            t_reply("503", "Service not available");
            return;
        }
    }
}

I try to use modparam("dispatcher", "dst_avp_id", 100) but I obtain:

 0(19260) set_mod_param_regex: parameter <dst_avp_id> not found in module <dispatcher>
 0(19260) parse error (86,21-22): Can't set module parameter
 0(19260) parse error (128,25-26): unknown command, missing loadmodule?

ERROR: bad config file (2 errors)


 		
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