[Serusers] Carrier-grade framework for SER

[Dragos Vingarzan]

Hi Klaus,

If you refer to origination messages, then by doing a UAR 
(User-Authorization-Request/Answer)for the originating user to the AAA 
server. This will offer a way to ballance user registrations between 
serving sers.
If you refer to termination messages, by doing a LIR 
(Location-Information-Request/Answer) for the terminating user to the 
AAA server. This will find where the destination users are located.

UA->interog.ser->serv.ser->inter.ser->serv.ser->UA
     UAR^                     ^LIR
        |                     |
        +----> AAA server <---+

If you refer to forwarding to new networks or entering the home network, 
you are right, SRV should be used. Sorry, I have not made it clear 
enough - I was talking about load balancing and stuff JUST inside the 
home network. So finding an interogating node, when no AAA server for 
that domain could be contacted, remains the same. But it should be more 
comfortable, because interogating nodes are fully stateless and should 
work very fast.

Dragos

Klaus Darilion wrote:

> Hi Dragos!
>
>>
>> 4. Actually 1. responded to this. Load balancing is controled in 
>> interogating sip-proxies and in AAA servers and not by "patches" like 
>> DNS SRV (please don't flame me on this one ;-) ).
>
>
> How should a SIP client detect and choose one of the SIP-proxies 
> without using SRV?
>
> regards,
> klaus
>
> _______________________________________________
> Serusers mailing list
> serusers at lists.iptel.org
> http://lists.iptel.org/mailman/listinfo/serusers
>

-- 
-----------------------------------------

Dragos Vingarzan

FOKUS/MOBIS

Kaiserin-Augusta-Allee 31

10589 Berlin

Germany

Phone +49 (0)30 - 3463 - 7242

Mobile +49 (0)162 - 153 - 0154

eMail vingarzan at fokus.fraunhofer.de

Web www.fokus.fraunhofer.de

Computers are not intelligent. They only think they are.

-------------------------------------------------------