Hi, I have a very simple question.
Pacemaker uses a dedicated "multicast" interface for the totem protocol. I'm using pacemaker with LVS to provide HA load balancing. LVS uses multicast interfaces to sync the status of TCP connections if a failover occurs. I can understand services using the same interface if ports are used. That way you can get a socket (ip + port). But there's no ports in this case. So how can two services exchange messages without specifying ports? I guess that's somehow related to multicast, but how exactly I don't get. Can somebody point me to a primer on this topic? Thanks, S.
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