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:
(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.