From: Jerry (phase90@comcast.net)
Date: Fri Feb 14 2003 - 18:42:57 GMT-3
George,
I believe these limits are chosen by arbitrary policy based on the
type of traffic you are policing
in the access list. I do not believe this comes from a formula. In other
words if you have as in your example a t-3 or ds-3 and you want no more than
10 MEg for e-mail your access-list would match
tcp port #25 and in the rate-limit statement you have the 10000000
conform-action transmit exceed-action drop. I don't have exact syntax
because I don't have any routers! But this should convey the
general idea.
Jerry
----- Original Message -----
From: george gittins <g.gittins@edinburg.esc1.net>
To: <ccielab@groupstudy.com>
Sent: Friday, February 14, 2003 3:10 PM
Subject: question on rate limit
> I been reading up on Qos and I have somewhat difficult in grasping the
> following command.
>
> Rate limit . reading from the book and taking one example like
>
>
>
> Rate-limit input 450000 22500 22500 confirm-action
>
>
>
> Now I don't know how to calculate the 22500 value, or where it comes from.
> On the book it explains that the link is a ds-3 and and the objective is
> to control that link not exceed , I understand that part and how to
classify
> it once the traffic arrives , its just the value of bps burst-normal
> burst-max.is there a formula?
>
>
>
> rate-limit {input | output} [access-group [rate-limit] acl-index] bps
> burst-normal burst-max conform-action
>
>
>
>
>
> George Gittins
>
> Network and Computer Maintenance Supervisor
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