Hi Marcin,
Marcin Cieslak wrote:
Ah, I forgot one things.
I'd like to see how IP failover may work for us in practice (I am
thinking between easy switch between ptolemy and cassini in case of some
PostgreSQL problems).
(10) Do you mind allocating us one more virtual IPv4 address that will
be shared between cassini and ptolemy (for now)? This leads up to:
I addressed this in my previous mail.
(11) I would like to use generate multicast traffic
between OSM servers.
I think it would be good to have few IP addresses from the
239.192.0.0/14 range allocated.
Well... we do use multicast a bit. We can indeed allocate IPs for you,
out of our AS-allocated range. However, Switches/routers handle
multicast traffic specially, have group/port membership limits for them
and we've also found several bugs. So before you start using it heavily,
I'd like to know what for. :) With only 2 servers communicating, would
unicast not be a better idea?
Let me know,
--
Mark Bergsma <mark(a)wikimedia.org>
System & Network Administrator, Wikimedia Foundation