[SR-Users] dialog ka-timer/ka_interval results in flood op OPTIONS

[Daniel Tryba]

On Tuesday 04 June 2013 18:20:19 Daniel Tryba wrote:
> > http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=a17a3
> > 2e 5f7a3120c200d6e48fe91d7aa1dfd28b1
> > 
> > If all works fine, then I will backport.
> 
> But tomorrow I'll do some more tests.

It works to send OPTIONS and detect dead endpoints, but the results are not 
what you expect from the configuration:

modparam("dialog","ka_timer", 10)
modparam("dialog","ka_interval", 15)

and dlg_set_property("ka-src");

Results in the first OPTIONS being send after ka_interval time since the OK on 
te INVITE. Next OPTIONS will be send after 2*ka_timer from then on:

xx:00:00 INVITE ->
xx:00:01 200 OK <-
xx:00:16 OPTIONS ->
xx:00:36 OPTIONS -> 
xx:00:56 OPTIONS ->

modparam("dialog","ka_timer", 30)
modparam("dialog","ka_interval", 60)

xx:00:00 INVITE ->
xx:00:01 200 OK <-
xx:01:21 OPTIONS ->
xx:02:21 OPTIONS -> 
xx:03:21 OPTIONS ->

Regardless of this doubled ka_timer: ship it :)

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