From: Joe Chang (changjoe@earthlink.net)
Date: Tue May 18 2004 - 16:15:57 GMT-3
"If cir is less then line speed, you can burst up to line speed with
accumulated credits, so ar-cir = be."
This might not have much impact on the test, but is the above necessarily
true? My impression is that Be is dictated by how the you want the token
bucket algorithm to behave. Token bucket doesn't take into account an access
rate. Regardless of the values of Bc or Be, the algorithm guarantees the
average rate will not exceed CIR.
Also, in the "real world" would CAR/policing be used as a means to avoid
congestion on the access point to your service provider? The queueing
methods (WFQ, CQ, even FIFO) do that job already. Isn't CAR a means to mark
packets and differentiate traffic before it enters a Diffserv domain?
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