Date: Fri, 20 Mar 2009 17:01:54 +0100 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Sebastian Mellmann <sebastian.mellmann@net.t-labs.tu-berlin.de> Cc: freebsd-ipfw@freebsd.org Subject: Re: ipfw dummynet - delay distributions when using config masks Message-ID: <20090320160154.GA92207@onelab2.iet.unipi.it> In-Reply-To: <49C3BBF6.7040104@net.t-labs.tu-berlin.de> References: <49C3BBF6.7040104@net.t-labs.tu-berlin.de>
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On Fri, Mar 20, 2009 at 04:53:26PM +0100, Sebastian Mellmann wrote: > Hi! > > > I'm using pipe masks for defining multiple queues per traffic flow, e.g. > > $cmd pipe 100 config mask all bw $webclient_upload_bandwidth queue $queue_size delay $client_rtt_delay > $cmd pipe 200 config mask all bw $webclient_download_bandwidth queue $queue_size delay $client_rtt_delay > > $cmd add pipe 100 all from $client1_subnet to $server1_subnet in recv $in_if > $cmd add pipe 200 all from $server1_subnet to $client1_subnet out xmit $in_if > > > As you can see in the example above I'm defining a fixed delay value for > all queues. > Is it possible to define a delay distribution, e.g. min. 20ms, mean 50ms > and max. 80ms for the pipe? we do have something that does the thing you are asking for, and should be committed soon to head (and easily backported to RELENG_7). Please be patient a couple of week, the code is already working and we only need to address some binary compatibility issue. cheers luigi
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