Re: Policing and Shaping

From: MADMAN (dmadlan@xxxxxxxxx)
Date: Tue Apr 16 2002 - 10:24:25 GMT-3


   
  If you buy a 10M ATM circuit from a provider and you try to send more
than 10M in a speciifed time period we will police, drop, your cells.
To prevent this and the subsequent performance degradation you must
shape your traffic so that you do not exceed 10M.

  Dave

donny.mateo@sg.ca-indosuez.com wrote:
>
> Ok Guys.. I"m lost here..
>
> I dig out some documentation in Cisco website and I found out the following
> info. Cisco IOS offers 2 kinds of traffic regulation mechanism.
> Policing and shaping. A policer will drops traffic and a shaper typically sha
pe
> traffic using queue or buffer.
> The type of shapping: GTS (generic traffic shaping), CBS (class-based shaping
),
> DTS (distributed traffic shaping), FRTS (frame relay).
> The type of Policing : Traffic policing and CAR.
>
> Now the confusion is when and where do you use all this bunch of stuff.... I
> know the documentation says something like they can work in tandem, but I've
> never seen any discussion on it. So perhaps some of you who have implemented
it
> can share some knowledge with us. btw it's really necessary to run both ( th
ey
> said CAR only do rate limit and LLQ would guarantee bandwidth).....
>
> tks in advance
>
> Best Regarsd
> Donny
>
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