Date: Fri, 17 Apr 2015 11:46:30 -0700 From: Michael Sierchio <kudzu@tenebras.com> To: Sami Halabi <sodynet1@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: traffic prioritize Message-ID: <CAHu1Y70XL1J-Fo8J6NM2MRgCaTiBwb8kWku6QQ0ieVN92oB_Vg@mail.gmail.com> In-Reply-To: <CAEW%2BogbCaEPef1Q3Fw1EtbvOs1Z5jKrzjve7XNprrkn7SM63HA@mail.gmail.com> References: <CAEW%2BogbZUEYvqCr9gOdwdYujgd8u8ym6nWHjDCP43y2n-cPKvw@mail.gmail.com> <CAEW%2BogbrR4tpBe2C-1ZQsByZwPTk91TbnikdD%2B90yaiFvC1oew@mail.gmail.com> <CAEW%2BogbCaEPef1Q3Fw1EtbvOs1Z5jKrzjve7XNprrkn7SM63HA@mail.gmail.com>
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On Fri, Apr 17, 2015 at 7:38 AM, Sami Halabi <sodynet1@gmail.com> wrote: > hi, > I need to set some QoS on traffic. > I use ipfw & dummynet, all my search to cane to use queue with weight, > however its said that this method not prioritize traffic rather that > splitting the pipe according to the weights (if i read correctly should sum > to 100). > > dummynet does not implement priority queues, but uses a variant of weighted fair queueing - WFQ2+ - "fair" because queues with lower weights are guaranteed to have their traffic move. You misread the docs on the weight - each queue may have a weight from 1-100. One sublety is that your pipe capacity must be slightly less than the available bandwidth, since queue weights only take effect when there is contention. - M
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