HomeA primary feature of Rsvp is its scalability. Rsvp scales to very large multicast groups because it uses receiver-oriented reservation requests that merge as they progress up the multicast tree. The reservation for a single receiver does not need to travel to the source of a multicast tree; rather it travels only until it reaches a reserved branch of the tree. While the Rsvp protocol is designed specifically for multicast applications, it may also make unicast reservations.
June 11th, 2011