HELP! * GREY=local LOCAL HTML version of Foils prepared 17 Feb 1997

Foil 11 RSVP Operational Principles (Continued)

From Reservation Protocol Large Web Application Class, CPS600/640 Fall 1997 -- Fall Semester 97. by Marek Podgorny * See also color IMAGE
RSVP is designed to scale well for very large multicast groups.
  • Since both the membership of a large group and the topology of large multicast trees may change with time, the RSVP design assumes that router state for traffic control will be built and destroyed incrementally. Hence, RSVP uses "soft state" in the routers, i.e., RSVP sends periodic refresh messages to maintain the state along the reserved path; in absence of refreshes, the state will automatically time out and be deleted.

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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