Date: Tue, 20 Sep 2005 21:37:17 +0200 From: Jeremie Le Hen <jeremie@le-hen.org> To: vladone <vladone@spaingsm.com> Cc: freebsd-ipfw@freebsd.org Subject: Re: dummynet patch Message-ID: <20050920193717.GG24643@obiwan.tataz.chchile.org> In-Reply-To: <1135123196.20050920192026@spaingsm.com> References: <97663975.20050917141303@spaingsm.com> <20050919122154.GM51142@obiwan.tataz.chchile.org> <477488950.20050920130453@spaingsm.com> <20050920152714.GF24643@obiwan.tataz.chchile.org> <1135123196.20050920192026@spaingsm.com>
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Hi, > I know what is WF2Q, but still dont see what is the problem for wich > dont't exist a possibility to limit bandwidth that is given to a > queue, with queue settings. > And exist a precedent, "queue" paramater that exist for pipe and > queue. > For example, if a "bw" parameter is not used for queue, then bandwidth > is given only acording with they weight, so use this option who want, > like anothers parameters ("dst-ip, mask, queue, even weight"). > And my suggestion isn't a caprice. > For example: if i have multiple users, that acces internet throught an > freebsd gateway. How split bandwidth? > I have two clear solutions: > 1. assign for each host an pipe. But i dont know if in this mode, in > conditions of heavy traffic, bandwidth is well splited. Is possibil > for an user to take more bandwidth (according with his pipe), and > another user remain without bandwidth. > 2. share total bandwidth, to different hosts, with queue. This is more > efficient but have a little problem. If an user is alone on traffic > can get all bandwith. For this reason, i want (and i think many > admins) an possibility to limit bandwidth that is given to a queue. > > I don't think that passing packets to multiple pipe and queue is e > efficiently for traffic flow. > My sugestion about "bw" parameter for queue is only for convenience. U > can named how you want, so i dont see problem about "... pipes and queues are two distinct objects which have > different semantics." You definitely want to use ALTQ, which is available since RELENG_5. Dummynet is not designed to achieve traffic management, its intent is to emulate a network. ALTQ will allow you to share bandwidth in a very fair way, such as you describe here. Regards, -- Jeremie Le Hen < jeremie at le-hen dot org >< ttz at chchile dot org >
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