bursting traffic?

Luigi Rizzo rizzo at icir.org
Wed Oct 13 00:35:42 PDT 2004


On Tue, Oct 12, 2004 at 11:18:13PM -0500, Charles R. Hunter wrote:
> 
> Hello!
> 
> I'm pretty new to ipfw with respect to using dummynet pipes and 
> queues for traffic shaping. For the life of me, I can't figure out
> how to do something I want:
> 
> How to force my interface to burst its traffic.

you cannot do that with dummynet. it is designed to
smooth traffic out of an interface, not burst it.

cheers
luigi

> That is, I want a pipe that  has a delay of A and
> a bandwidth of B but will stall itself at the *end* of 
> a count C of slots/bytes/whatever for a defined waiting period D
> and then continue.
> 
> Do I want a configurable queue delay maybe?
> 
> The ipfw/dummynet docs talk about the delay caused by a deep queue
> but doesn't mention a way to explicitly set a delay like you
> can for pipes.
> 
> Is there any way to accompish this with multiple pipes and queues
> perhaps?
> 
> Thanks,
> 
> Charles
> -- 
> Charles R. Hunter
> Director, Physics Computer Network
> Purdue University  crh XatX physics.purdue.edu
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