On Sun, 29 Sep 2002 06:20:59 +0859, Masataka Ohta said: > RSVP establishes the per-flow state before the packets can flow. > > It is just a minor engineering decision to allow optional circuit > switched service over a best-effort-capable network. 1) I wasn't aware that RSVP caused packets to be routed according to a flow ID contained in the packet rather than the IP address in the packet. 2) If an intermediate router handling an RSVP connection decides to die an interesting death, packets can still be sent (assuming things like multihoming and BGP convergence) and successfully arrive before a new RSVP setup completes. It doesn't sound like a circuit-switching scheme, it sounds like a resource reservation scheme to guarantee sufficient bandwidth. -- Valdis Kletnieks Computer Systems Senior Engineer Virginia Tech
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