Date: Mon, 22 Jan 2001 10:55:21 -0800 (PST) From: Luigi Rizzo <rizzo@aciri.org> To: roman@IPricot.com (Roman Le Houelleur) Cc: freebsd-ipfw@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: bandwidth analyser Message-ID: <200101221855.f0MItLq39152@iguana.aciri.org> In-Reply-To: <3A6C7FD0.7E2ABD65@IPricot.com> from Roman Le Houelleur at "Jan 22, 2001 7:45:36 pm"
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> hi, > > I use FreeBSD 4.2 stable + bridge + dummynet + ipfw. > I would like to calculate the bandwidth of each > authorized IP source flowing through the bridge from a > user program. > As this bandwidth calculation should be done very often > (10 to 20 times per second) I first tried to use the if_data ... > Anybody has an advice on the best way to achieve this > calculation ? what about the counter capabilities of ipfw ? i think the ipfw interface to access this info is not very well suited to this kind of task, at least not as often as 20 times per second. > Moreover, concerning the bridge, I was wondering if > there is a way not to put a third interface in promiscous yes, there is asysctl interface (net.link.ether.bridge_cfg) see the manpages. cheers luigi ----------------------------------+----------------------------------------- Luigi RIZZO, luigi@iet.unipi.it . ACIRI/ICSI (on leave from Univ. di Pisa) http://www.iet.unipi.it/~luigi/ . 1947 Center St, Berkeley CA 94704 Phone: (510) 666 2927 ----------------------------------+----------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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