What TCP and UDP ports are required/used for clustering IVEs and what is each port used for?
TCP/IP Port 4808 : Clustering on, Always P2P encrypted communication
Cluster heartbeats and intra cluster RPC calls, always encrypted.
TCP/IP Port 4809 : Clustering on, Always P2P clear text communication
Used to query the build version being run at the remote IVE
TCP/IP Port 4900-4910 : For a short period when a node joins the cluster Key exchange for group communication, state sync where applicable
Mostly copying the state data from one cluster node to another when a node joins the cluster or when a cluster rejoins after partition. There should be significant data only on one these ports. Always encrypted.
UDP Port 4803 : Clustering On, always Group communication
Incremental state data replication. Always encrypted.
UDP Port 4804 : Clustering On, always Token Heartbeat
Group communication heartbeats. Unencrypted. No data on this channel.