A connection provides the reliable transport connectivity between a Local Node and a Peer Node. Connections can use the SCTP or TCP transport protocol. Local Nodes and Peer Nodes respond to connection requests initiated by a Peer Node, and can also be configured to initiate a connection to a Peer Node.
For a given Peer Node, one connection can be configured for each local IP address/transport/listen port combination. For example, if there is a Local Node that supports two IP addresses then you can configure two SCTP connections for the Peer Node - one for each Local Node IP address and listen port.