RE: Rate Limit Bc question

From: CCIE 19999 (ccie@iprimus.com.au)
Date: Fri Jul 06 2007 - 00:11:51 ART


Kim,

This was one of the questions I have asked few weeks ago in the group study.
If you hit ? for help, you will see the BC values is not in bits per second.
This is one of the areas where Cisco is not consistent. It uses, bit/sec,
bytes/sec, Kbps etc. for different commands.

You can make sure, what unit of value the command really takes, I always hit
? and apply this one accordingly.

HTH,
Shne

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Kim
Sent: Wednesday, 4 July 2007 6:50 AM
To: Cisco certification
Subject: Rate Limit Bc question

The task states:
In order to alleviate congestion configure R1 so that it does not send more
than 128Kbps of ICMP traffic out this interface. Allow for a burst of 1/4th
of this rate.

The answer uses NBAR to match ICMP and uses policy-map to police cir 128000
bc 4000.

Why bc is 4000? I thought 1/4th of this rate is 32000?

Thanks.

-- 
http://www.isolvesystems.com


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