[OpenSIPS-Users] mid_registrar question

[Igor Olhovskiy]

Enpoint B also have 3600 expiry time. So, 1000 + 2600 = 3600.
But you got the point.

Actually I faced more interesting issue a bit later, maybe actually it was
the reason.
Only 1 phone involved.
Time 0       ->  Enpoint A -> mid_registrar -> upstream_registrar (expires
3600)
Time 1000 ->  Enpoint A -> mid_registrar (just consume registration)
Time 3600 -> NOTHING. upstream_registrar expires.
1000 sec GAP
Time 4600 -> Enpoint A -> mid_registrar -> upstream_registrar.

Yes, looks like non logic behaviour, but some of my Yealink endpoints
sometimes just refreshes registration (maybe TCP network loss or so) in a
middle of expires period and than - just wait for full expire time to
re-register

пт, 27 сент. 2019 г. в 18:53, Liviu Chircu <liviu at opensips.org>:

> Hi, Igor!
>
> Correct me if I'm wrong, but doesn't endpoint B think it's registered
> for another 1000 seconds at step 4) in your example?
>
> Anyway, logically speaking, on step 2), the mid-registrar should forward
> the call to main reg, since there is no guarantee that any of the endpoints
> will send a binding refresh register within the next 2600 seconds.  For all
> it's worth, A could lose its connection and B could wait between
> 2601 to 3599 before re-registering, which would temporarily cause
> registration
> state to be incorrectly lost on the backend layer.
>
> Let me set up a test for this scenario and I will come back to you with
> my findings.
>
> Regards,
>
> Liviu Chircu
> OpenSIPS Developer
> http://www.opensips-solutions.com
>
> On 27.09.2019 18:18, Igor Olhovskiy wrote:
> > but Enpoint B still thinks it's registered at least 2599 seconds.
>
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-- 
Best regards,
Igor
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