Valdis;
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.
Huh?
In this thread, as Noel said:
: It's easy to imagine an ATM-like system
: in which circuit ID's are global in scope.
the circuit ID does not neccessarily imply special routing.
However, you should also be aware that RSVP is virtually useless
without QoS routing.
Masataka Ohta