Date: Tue, 28 Jul 2009 07:44:34 +0100 From: Mark Sandford <j.m.sandford@hotmail.co.uk> To: <julian@elischer.org> Cc: freebsd-ipfw@freebsd.org Subject: RE: Using dummynet to restrict bandwidth with more than 2 active pipes / queues Message-ID: <COL110-W1541DD4CA42B8DC23C22D392150@phx.gbl> In-Reply-To: <4A6E990E.6090800@elischer.org> References: <COL110-W10D341161C0B631FE5239892140@phx.gbl> <COL110-W1117070BA101EAA0AD722492150@phx.gbl> <4A6E990E.6090800@elischer.org>
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It's a home grown tool using libnet. We've re-tested using one packet generation process to create 4 flows going= across the four pipes and see pretty much what we were expecting. In this case we were just firing 1000 byte udp packets (1042 bytes on the w= ire). ~~~~~~~~~~~~~~~~~~~~~~~~ Mark Sandford email: j.m.sandford@hotmail.co.uk mob: 07990 565976 ~~~~~~~~~~~~~~~~~~~~~~~~ > Date: Mon=2C 27 Jul 2009 23:22:06 -0700 > From: julian@elischer.org > To: j.m.sandford@hotmail.co.uk > CC: freebsd-ipfw@freebsd.org > Subject: Re: Using dummynet to restrict bandwidth with more than 2 active= pipes / queues >=20 > Mark Sandford wrote: > > Sorry if anyone's wasted time looking at this. The problem appears > > to be with the traffic generator. Once we get above two generation > > processes we think that the data is being sent in bursts so although > > it appears to be right averaged over a second at a finer granularity > > the burstiness is meaning it's either exceeding the bandwidth or idle > > at each point. > >=20 >=20 > what are you using to generate traffic? > and what kind of traffic? >=20 > _______________________________________________ > freebsd-ipfw@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw > To unsubscribe=2C send any mail to "freebsd-ipfw-unsubscribe@freebsd.org" _________________________________________________________________ Celebrate a decade of Messenger with free winks=2C emoticons=2C display pic= s=2C and more. http://clk.atdmt.com/UKM/go/157562755/direct/01/=
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