7 Dec
2006
7 Dec
'06
4:49 p.m.
Hello Thomas,
3. [Correct this part please] LVS (linux virtual Server) is a solution
to load balance traffic but it's not SIP aware. You can use it for TCP
connection but for SIP, it's very hard.
However, you can set a load balancing on IP source, and so, each phone
will see only one server.
For statefull Proxy, yes, there's some problems with load balance. For
stateless Proxy LVS works very well.
More than this, the LVS solution will not try to know
if Asterisk OR SER
is alive but try to know if the server is alive. (most of the time, only
the service going down, not the whole server ...)
LVS itself realy don't do that. But its not made to do, anyway.
You need to use a "health check" service that manipulate LVS
configuration, like Keepalived healthcheck framework, Heartbeat,
UltraMonkey, RedHat Piranha etc (variations of the same thing ;)
C/c: The LVS is not a good solution. This can help but
the reactivity is
very bad.
Combining the right pieces you can do nice things.