TRIP Peer Finite State Machine state. idle(1) : The initial state. Local LS refuses all incoming connections. No application resources are allocated to processing information about the remote peer. connect(2) : Local LS waiting for a transport protocol connection to be completed to the peer, and is listening for inbound transport connections from the peer. active(3) : Local LS is listening for an inbound connection from the peer, but is not in the process of initiating a connection to the remote peer. openSent(4) : Local LS has sent an OPEN message to its peer and is waiting for an OPEN message from the remote peer. openConfirm(5): Local LS has sent an OPEN message to the remote peer, received an OPEN message from the remote peer, and sent a KEEPALIVE message in response to the OPEN. The local LS is now waiting for a KEEPALIVE message or a NOTIFICATION message in response to its OPEN message. established(6): LS can exchange UPDATE, NOTIFICATION, and KEEPALIVE messages with its peer.