Hi group

Reviewing cisco's white paper on CAR (rate-limit) I found that cisco uses a
bucket to determine the traffic rate. Cisco recommends the burst size to be
:

Burst size =Desired Rate(in bits) /8 * 1.5

and it says that if the burst size is smaller the client won't reach the
desired rate.

My question is that how should be the burst(bucket) size be calculated so
that the client reaches the specified data rate. Dosn't the burst size have
anything to do with the MTU? For example, whould the burst size be the same
if you are limiting tiny voice packets or normal traffic with an 1500 MTU.
Actually I am looking for a relation between the MTU and the packet size.

Thanx in advance

Hamid




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