[sr-dev] RFC 5626 (Outbound) planned?

Martin Hoffmann martin.hoffmann at telio.ch
Mon Oct 10 15:58:09 CEST 2011


Juha Heinanen wrote:
> Martin Hoffmann writes:
> 
> > Do I understand you correctly that you want to use a set of edge proxies
> > plus a set of registrars and it should create connections to all edge
> > proxies and then register with all registrars via each of these
> > connections?
> 
> if outbound rfc would have made it a requirement that each ua must
> register via at least two proxies in its ob proxy set, then i would have
> configured them with two and i could have been able to run those two
> proxies in parallel (both active at the same time listening at their own
> ip address).
> 
> but according to ob rfc, an ua is allowed to register only via one ob
> proxy (for example in order to save power) in the set, which means that
> in order to achieve redundancy, i have to setup a passive standby proxy
> that receives the single ip address if the currently active proxy one
> fails.

Right. Except:

| If the [outbound-proxy-set] has more than
| one URI, the UAC MUST send a REGISTER request to at least two of the
| default outbound proxies from the set.

(RFC 5626, section 4.2.1.)

Regards,
Martin



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