Provides association/lookup information between the TWAMP server to currently existing session-reflectors. More formally speaking, this table provides the association between existing TWAMP-control and TWAMP-test sessions. A TWAMP-control session is uniquely identified by the client IP address and client TCP source port used to communicate with the TWAMP server. A TWAMP-test session is uniquely identified by the session-sender IP address and session-sender UDP destination port used to communicate with the session-reflector. Because TWAMP server statistics for a particular TCP connection depend on the session-reflector/s that were spawned from the TWAMP server's particular TCP connection, this dependence information is made available through this table.