[j-nsp] rate limiting question

Richard A Steenbergen ras at e-gerbil.net
Tue Dec 9 00:48:28 EST 2003


On Mon, Dec 08, 2003 at 03:39:56PM -0800, harry wrote:
> Another rule of thumb, especially for high-speed links (> OC-12c) is to set
> the max-burst to a value that represents 3-5 milliseconds of line rate
> transmission. 
> 
> As you point out, a 20 M vs a 50 M limiter may well use the same burst size
> parameter. The main concern is setting too small a burst, which can make the
> policer seem broken because throughput is measured below the configured
> bandwidth limit.

Is there some particular reason why there isn't an automatic setting 
available for the max burst? :)

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)


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