[Serusers] More on load balancing: LVS + SRVs, SER + Asterisk

[Greger V. Teigre]

LVS can do UDP load distribution based on UA's IP address. i think that is 
what Pietro suggests.  Then the receiving SER must know where the call 
should go.  Such a solution will anyway be reliant on a single server, as 
Juha pointed out.
g-)

Iqbal wrote:
> would lvs do this, I mean doesnt it have a problem with udp/SIP
> judging by the threads u mentioned and those on lvs list.
>
>
>
> Iqbal
>
> On 5/12/2005, "Juha Heinanen" <jh at tutpro.com> wrote:
>
>> Pietro Ravasio writes:
>>
>>> When UA_A calls UA_B, its INVITE will reach the same SER it has
>>> previously registered to (SER_1, thanks to LVS persistence), SER_1
>>> will then look for UA_B and will notice that it is registered as
>>> UA_B at ser2.domain.com, DNS will be queried and SER_2 will be
>>> contacted in order to handle INVITE and send it to UA_B through
>>> already opened UDP channel (resolving NAT).
>>
>> what happens if ser_1 or ser_2 is down when this call takes place?
>>
>>> Have you got any suggestion/comment?
>>
>> i don't at all like an idea of mixing a third component (asterisk) to
>> this.  the whole thing should be doable with sers and load balancers
>> alone.
>>
>> -- juha
>>
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>
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