RSVP creates independent sessions to handle each data flow. It is important to note that each session is simplex, even though bidirectional messages (Path and Resv) create the simplex session. A session is identified by a combination of the destination address, an optional destination port, and a protocol. Within a session, there can be one or more senders. Each sender is identified by a combination of its source address and source port. Figure 7 shows a simplified overview of an RSVP point-to-point session. For information on point-to-multipoint LSPs, see the JUNOS MPLS Applications Configuration Guide.
Figure 7: RSVP Session
A typical RSVP session involves the following sequence of events:
