[SR-Users] Dispatcher is using gateways in Probing mode

[alex pappas]

Hi Daniel,

I have configured that option before i send it the email.
modparam("dispatcher", "ds_probing_threshhold", 2)

I have gateways A,A,B,C. (A and A is the same gw. I want to send more calls
that's why is added twice)

C is the dead gateway. It never responds back to the options because is not
a real IP.

When Dispatcher is sending the Invites it always includes the dead gw C
which by the way is in probing mode.

Doing some test calls i have the following results in send it Invites:

A, B, A, C
B, A, C, A
A, C, A, B
A, B , A ,C
B, A, C, A
A, C, A, B
A, B , A ,C
B, A, C, A
A, C, A, B
A, B, A, C
B, A, C, A

As you can see the C dead gw is always included to the Invites send.

Am i missing something in the configuration?
I also tried to use “9” - use weight based load distribution but with no
success. i got in the logs that this algorithm is not implemented. I'm doing
something wrong here or is not implemented in this version of Kamailio. (
3.0.1)

Thank you in advance for your help.

Regards
Alex




On Fri, Nov 12, 2010 at 10:14 PM, Daniel-Constantin Mierla <
miconda at gmail.com> wrote:

>  Hi Alex,
>
> dispatcher module does not send new invites to inactive gateways. But in
> case a destination became inactive while some INVITEs were already through
> dispatcher, these recent inactive gateways may still be used for them.
>
> Regarding the probing mode, dispatcher will never select a probing gateway
> as first option to route the call, but they are kept as alternative. This is
> the current implementation, we may add a module parameter to skip gateways
> in probing mode even for secondary alternatives.
>
> Non-responsive gateways change the state after a while, see:
> http://kamailio.org/docs/modules/stable/modules_k/dispatcher.html#id2567110
>
> Cheers,
> Daniel
>
>
> On 11/12/10 12:58 PM, alex pappas wrote:
>
> Dear all,
>
> Does anyone can explain how Dispatcher module is sending calls to the
> gateways in the different states?
>
> I mean if I have 3 gateways and the one of them is in Probing mode why
> Dispatcher is continuing sending there calls? Why this gateway is not
> changing from Probing to Inactive since is not replaying to OPTIONS messages
> send by Kamailio?
>
> Configuration:
>
> modparam("dispatcher", "flags", 2)
> modparam("dispatcher", "ds_ping_interval", 5)
> modparam("dispatcher", "ds_probing_mode", 1)
> modparam("dispatcher", "ds_probing_threshhold", 2)
> modparam("dispatcher", "dst_avp", "$avp(s:dst_avp)")
> modparam("dispatcher", "grp_avp", "$avp(dsgrp)")
> modparam("dispatcher", "cnt_avp", "$avp(i:202)")
> modparam("dispatcher", "ds_append_branch", 0)
>
> using db for gw:
>
> setid 123,destination sip:xxx.xxxx.xxx, flag 0 ...
>
> in ROUTE:
> if(ds_select_domain("$avp(s:disp_dstgrp)", "4"))
>
> in Failure Route
>
> if(!ds_next_domain())
>
> I want Dispatcher when it sees a node gateway that is dead , to Not send
> any other calls.
>
> Thank you in advance
>
> Alex
>
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierlahttp://www.asipto.com
>
>
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