Date: Thu, 25 Nov 1999 07:27:55 +0100 (CET) From: "Kurt Jaeger" <pi@complx.LF.net> To: freebsd-isp@FreeBSD.ORG Subject: Re: IP or packet Accounting Software for burst connections. Message-ID: <m11qsNn-000zzTC@complx.LF.net> In-Reply-To: <Pine.BSF.4.05.9911241856380.18907-100000@misery.sdf.com> from "Tom" at Nov 24, 1999 06:57:52 PM
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Hi! > > > > I modified tcpdump to do bean, ehr, packet/byte counting. > > > That seems rather silly, since ipfw can do that already. > > My bean-count-list is roughly 3000 records large. Will ipfw scale to > > that number of rules ? For 2-3 times 34mbit/sec ? > Well, think about it, how could it be any slower? Are bpf rules more > efficient than ipfw rules since they have to be evaluated at the same > layer? Basically, bpf is pretty efficient if you use only a "get all" rule. Packet loss under 0.5 per tousand, right now. We only store them away for later/distributed processing. -- MfG/Best regards, Kurt Jaeger 21 years to go ! LF.net GmbH pi@LF.net Oberon.net GmbH pi@oberon.net Vor dem Lauch 23 fon +49 711 90074-23 Friedrich-Ebert-Str.1 D-70567 Stuttgart fax +49 711 7289041 40210 Duesseldorf fon +49 211 179253-11 For Redmond: "nuke the site from orbit -- it's the only way to be sure." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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