From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Fri Aug 06 2004 - 17:26:02 GMT-3
Gladston,
For what it is worth, I agree with you. Everything I see, including config
and guide, command ref and Odom's DQOS tells me excess burst is meaningless
without violate action in 12.2.T. The cool stuff comes with the "CIR/PIR"
syntax.
Bob Sinclair
CCIE #10427, CISSP, MCSE
www.netmasterclass.net
----- Original Message -----
From: <gladston@br.ibm.com>
To: <ccielab@groupstudy.com>
Sent: Friday, August 06, 2004 3:30 PM
Subject: Two Rate Policer
> Please help with the new Police command on 12.2T.
>
> What is the difference of both commands:
>
> police 1000000 125000 250000 conform-action transmit exceed-action
transmit violate-action drop
>
> police 1000000 125000 250000 conform-action transmit exceed-action drop
>
> (police bps burst-normal burst-max conform-action action exceed-action
action [violate-action action])
>
> Based on the following article on Cisco page I would say that the second
command is wrong because it specify exceed burst but do not specify a
violate action. Is that interpretation correct?
>
>
> "Token Bucket Algorithm with One Token Bucket
> The one token bucket algorithm is used when the violate-action option is
not specified in the police command CLI.
>
> The conform bucket is initially set to the full size (the full size is the
number of bytes specified as the normal burst size).
>
> When a packet of size B bytes arrives at time t the following actions
occur:
>
> a. Tokens are updated in the conform bucket. If the previous arrival of
the packet was at t1 and the current time is t, the bucket is updated with
(t-t1) worth of bits based on the token arrival rate. The token arrival rate
is calculated as follows:
>
> (time between packets<which is equal to t-t1> * policer rate)/8 bytes
>
> b. If the number of bytes in the conform bucket - B is greater than or
equal to 0, the packet conforms and the conform action is taken on the
packet. If the packet conforms, B bytes are removed from the conform bucket
and the conform action is completed for the packet.
>
> c. If the number of bytes in the conform bucket - B is less than 0, the
exceed action is taken."
>
>
>
> But I could not figure out
>
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