[OpenSIPS-Users] [dispatcher] long delay in failed gw detection

[Pascal Maugeri]

It does work !! I'm very happy :-)
Thank you so much Klaus for your help !
Pascal

On Tue, Oct 28, 2008 at 10:27 AM, Klaus Darilion <
klaus.mailinglists at pernau.at> wrote:

> set the fr_timer to a short value (e.g. 2 seconds)
>
> klaus
>
> Pascal Maugeri schrieb:
>
>> Hi
>>
>> We have a configuration with one dispatcher that load-balances traffic to
>> two SIP registrars.
>>
>> When I shutdown one registrar server, the failure is detected in 30
>> seconds approximately. Is that a normal response time ? Or should we expect
>> shorter response times ? (I expect yes :-) ).
>>
>> More precisely, having two target gateways named REG1 and REG2, if Is
>> shutdown REG2 at t0:
>> - traffic (SIP REGISTER messages) will be still load-balanced to REG1 and
>> REG2 during the first 7 seconds (t0+7seconds),
>> - then untill t0+30seconds, traffic will be sent exclusively to REG2 (the
>> failed gw),
>> - from t0+30s to t0+35, traffic will be sent to both gateways REG1 and
>> REG2 again,
>> - from t0+35s traffic will be sent to REG1 exclusively.
>>
>> During the test we see the SIP OPTIONS messages sent to both REG1 and
>> REG2.
>>
>> For the dispatcher we are using the following configuration:
>>
>> modparam("dispatcher", "list_file",
>> "/usr/local/etc/kamailio/dispatcher.list")
>> modparam("dispatcher", "flags", 3)
>> modparam("dispatcher", "dst_avp", "$avp(i:271)")
>> modparam("dispatcher", "grp_avp", "$avp(i:272)")
>> modparam("dispatcher", "cnt_avp", "$avp(i:273)")
>> modparam("dispatcher", "ds_ping_method", "OPTIONS")
>> modparam("dispatcher", "ds_ping_interval", 3)
>> modparam("dispatcher", "ds_ping_from", "sip:fend1 at 10.132.184.33<sip%3Afend1 at 10.132.184.33><mailto:
>> sip%3Afend1 at 10.132.184.33 <sip%253Afend1 at 10.132.184.33>>")
>> modparam("dispatcher", "ds_probing_threshhold", 1)
>> modparam("dispatcher", "ds_probing_mode", 1)
>> modparam("dispatcher", "force_dst", 1)
>>
>> route{
>>
>>        ds_select_dst("1", "0");
>>        xlog("L_INFO","---> $avp(i:271) $avp(i:272) $avp(i:273)");
>>        t_on_failure("1");
>>        t_relay();
>>
>> }
>>
>> failure_route[1] {
>>
>>        xlog("L_INFO", "Marking GW as failed...\n");
>>        ds_mark_dst("i");
>>        ds_next_dst();
>>        t_on_failure("1");
>>        t_relay();
>>
>> }
>>
>>
>> Regards,
>> -pascal
>>
>>
>> ------------------------------------------------------------------------
>>
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>
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