27 Feb
2008
27 Feb
'08
8:59 p.m.
Hi Amit,
Actually both parallel2serial forking support available in openser:
1) LCR module
2) core (see serialize_branches() + next_branches())
have the q-based ordering (parallel versus serial) built in.
Som if I understand correctly, you to do ordering based on q value, but
you want only serial forking - no parallel forking for the branches with
the same q, right?
Regards,
Bogdan
Amit Sharma wrote:
Hi Bogdan,
Thanks for the quick reply.
The behavior rfc3261 mentions for using q values is a common
ordering mechanism (Section 16.6) . I guess variants as such would not
be against rfc3261.
I was suggesting that we could have additional flexibility added to
what the LCR module is currently doing. Otherwise i would almost
rework what is already there in the LCR module (to get list ordered by
qvalues into AVPs)
A use case for the above request is where contacts for an AOR are
distributed in a system. The UA's come up with qvalue based on there
utilization etc. The idea is to send the call to the contact who has
been least used. I cannot enforce that the qvalues generated by the
UA's are unique unless I use a sequencing mechanism between the UA's.
Thanks,
Amit
On 2/27/08, *Bogdan-Andrei Iancu* <bogdan(a)voice-system.ro
<mailto:bogdan@voice-system.ro>> wrote:
Hi Amit,
First of all, the behaviour you want to achieve is against RFC3261
(forking based on q value), but for sure you know better what you
try to
get ;)
Now, depending where you take the list of destinations from, let's
assume you can get them into AVPs. For how to do serial forking from
AVPs, see:
http://www.voice-sistem.ro/docs/avpops/ar01s08.html#ex_serial_forking
Regards,
Bogdan
Amit Sharma wrote:
Hi All,
I am a newbie to this list so please forgive me if the question
below
has been discussed before. I could not find
anything related so i am
sending my query.
I have been looking at the LCR module to do serial forking since we
want to prioritize contacts based on q values. However, we do
not want
to fork in parallel to contacts even if they
share the same q value.
AFAIK,this is currently not possible with the LCR module.
Would it be a good idea to have a parameter (e.g "append-branches")
in the LCR module which can control the forking behavior when q
value
of contacts is the same?
Thanks,
Amit
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