From: David Timmons (masterdt@yahoo.com)
Date: Wed Jul 19 2006 - 17:36:07 ART
I was looking at a practice lab:
The summary of question:
x.x Rate Limit
Limit a particular flow, excluded from post, to 256 kbs. The questions defined direction and specifics of flow. But on the answer, they did not define the Bc or Be. When you review the output of show policy-map int fa0/0, you see that IOS has used a BC & BE of 8000. So, in my mind, this is not going to approach the requested CIR. From my understanding, Cisco recommends that you use a Bc of CIR/8*1.5 to approach the CIR. Do you think we should have used police cir 256000 48000 48000. I really don't know if they would grade that rate. At the very least, I think it should be police cir 256000 32000 32000.
The answer was like:
class-map match-all http
match access-group 100
policy-map plhttp
class http
police cir 256000
int fa0/0
service-policy output plhttp
M
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