Media State Checkpointing

By default, the Oracle® Enterprise Session Border Controller performs media checkpointing across the HA node for all signaling protocols. You can keep the default port set for redundancy media flows.

H.323 media high availability is supported through a TCP socket keep-alive, which determines whether or not the other end of a TCP/IP network connection is still in fact connected. This type of checkpointing prevents the listening side of a connection from waiting indefinitely when a TCP connection is lost. When there is a switchover in the HA node, the system that has just become active takes over sending TCP keep-alives. Media continues to flow until the session ends or the flow guard timers expire.

This parameter will appear in the ACLI as follows:

	red-flow-port                  1985