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

[Juha Heinanen]

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