Dan Trainor :
> Henrik Holst wrote:
> > But still, geographic load balancing would be very nice to have and I
> > cannot figure out another way to do it than involve DNS round-robin.
> I'm in the same boat here, still trying to think of a solution that
> works.
Well, Round-Robin DNS could work if :
- You have enough clients
- Clients are using DNS as expected
- Clients are dealing with TTL
- Clients DNS caches or provider DNS are honouring DNS TTL
- All your sites are always up and working (you can't use a DNS solution for
failover)
My clients are mobile phones, basically points 1 to 4 are not OK :). And I
have to deal with multiple sources for the same client (the transaction begin
in the gallery gateway and continues in the standard surf gateway, and I have
to use fwmarks to keep the session)...
We used RadWare to try to load-balance between our two peers. It clearly was
not working. Unfortunately, I don't have all the details.
François.
|