From: Jason Guy (jguy) (jguy@cisco.com)
Date: Thu Oct 18 2007 - 10:52:51 ART
Slevin,
Not quite. In your example 500 bps is the CIR, 1000 Bytes is the Bc,
and 2000 Bytes as the Be. FYI, this would be a single-rate three-color
policer.
Now the Conform action means that the traffic rate is LESS THAN OR EQUAL
TO the CIR, meaning that if the traffic rate is at or less than 500bps.
The Exceed action means the traffic rate is GREATER THAN CIR, but there
are still a few extra tokens in the bucket from before. So if there is
enough extra tokens, the packet will get the exceed action performed.
The violate action is what happens if there are not enough tokens in the
exceed bucket.
In the police command, you specify the target rate, and then the levels
of burst and corresponding actions. If you specify only conform and
exceed, this creates a 2-color, and adding the violate makes it a 2
color.
Now the explanation above is simplified, and I encourage you to find and
read the shaping and policing chapter of Wendel Odem's QoS book. It
explains this quite nicely.
Jason
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
slevin kremera
Sent: Wednesday, October 17, 2007 8:24 PM
To: CCIE Group Study CCIE Group Study
Subject: Re: 3 rate policer
lemme add some numbers
lets say bps 500
burst-normal 1000
burst-max 2000
so is this the logic
CONFORM-ACTION : if the traffic confirms to bps ..transmit
unaltered..so
the traffic here is either less than or equal to 500 ..right??
EXCEED-ACTION : the traffic has crossed 500 but is still less than or
equal
to 1000..then do something ........right??
VIOLOATE-ACTION:the traffic has crossed 500,1000 and is equal to or less
than 2000.then do something.........right??
On 10/18/07, slevin kremera <slevin.kremera@gmail.com> wrote:
>
> Hi Experts..
>
> some basic queries..pls correct my assumption here
>
> *police **bps* *burst-normal* *burst-max* *conform-action* *action* *
> exceed-action* *action* * violate-action **action
>
>
>
> conform action means "the traffic is equal to bps"
>
> exceed -action means "the traffic is greater than bps but less than or
> equal to burst-normal"
>
> violate-action means " the traffic is greater than bps,greater than
> burst-normal and is equal to burst-max"
>
>
> *
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