Not specifying bandwidth for Dummynet

Michael Sierchio kudzu at tenebras.com
Mon Jul 21 09:16:42 PDT 2003


Patrick C wrote:
> I'm on a cable connection, and the bandwidth is varying at different times of 
> the day. Because of the dynamic speed of this connection, is specifying the 
> bandwidth limits required when creating a dummynet pipe? For example... could 
> I just create the pipe with "ipfw pipe 10 config queue 25k/s" ?

Set the pipe bw to be the maximum you'll ever get.

Set the queue length to be something like avg latency * avg bw.

You can do more interesting things with queues, but start there.



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