Date: Wed, 02 Jul 2003 10:05:18 -0700 From: Michael Sierchio <kudzu@tenebras.com> To: Eugene Grosbein <eugen@grosbein.pp.ru> Cc: net@freebsd.org Subject: Re: ipprecedence Message-ID: <3F0310CE.5070302@tenebras.com> In-Reply-To: <20030703002247.A2097@grosbein.pp.ru> References: <20030703002247.A2097@grosbein.pp.ru>
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Eugene Grosbein wrote: > Then, if prioritized packed arrives when FIFO is not empty, > it will not be allowed to go out before packets without ipprecedence > that are already in FIFO. That's bad. That's not quite right. The prioritized packet will presumably be handled by a different (dummynet) queue, and that queue will have a higher weight than the other queue (for lower priority traffic). Luigi will correct me if I'm wrong, but it's probably important to keep the high-priority VoIP queue small -- either in bytes or packets, representing the actual bandwidth. This will cause he WFQ to kick in. Because of fairness, it won't *prevent* low-priority packets from being transmitted -- and that's important, since queueing systems can suffer horrible locks from a small amount of traffic otherwise -- but it should accomplish your goal. Tuning is your job, though, Zhenya. ;-)
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