Date: Wed, 7 May 2003 15:57:54 +0200 From: "Barry Irwin" <bvi@itouchlabs.com> To: <freebsd-security@freebsd.org> Subject: Re: IPFW Bandwidth throttling? Message-ID: <007b01c314a1$174b0af0$4508a8c0@Beastie> References: <Pine.BSF.4.44.0305070900170.96202-100000@thunder.xecu.net> <3EB91062.22408FB8@dolaninformation.com>
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Another thing to maybe try is up the HZ setting in your kernel. Have a look at the dummynet page. Barry -- Barry Irwin bvi@itouchlabs.com Tel: +27214875178 Systems Administrator: Networks And Security iTouch Technology iTouch TAS http://www.itouchlabs.com Mobile: +27824457210 ----- Original Message ----- From: "Greg Panula" <greg.panula@dolaninformation.com> To: "Chris McGee" <chris@xecu.net> Cc: <freebsd-security@freebsd.org> Sent: Wednesday, May 07, 2003 3:55 PM Subject: Re: IPFW Bandwidth throttling? > Chris McGee wrote: > > > > I am trying to limit outgoing SMTP traffic to about 14 Mbps and these are > > the IPFW rules I am using. > > > > ${fwcmd} add pipe 1 tcp from 192.168.0.0/24 to any 25 out via dc0 > > ${fwcmd} pipe 1 config bw 14Mbit/s > > > > I've tried multiple tweaks to the pipe rule and I seem to be missing > > something. I only get about half the bandwidth I specify. Is this normal > > behavior? Is there something wrong with the rule I'm running? > > > > The pipe config & pipe rule look correct. > > Try 'ipfw pipe list' to confirm the pipe is configured for the correct > bandwidth and not dropping excessive amounts of packets. > > Is dc0 configured for 100Mbps or 10Mbps? 7Mbps is close to the ceiling > for a 10Mbps link. > > Are you sure you have ~2MBps worth of smtp traffic to pass when you're > watching? If you increase the bandwidth on the pipe do you see more > than the ~7Mbps you're currently seeing? > > > good luck, > greg > _______________________________________________ > freebsd-security@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security > To unsubscribe, send any mail to "freebsd-security-unsubscribe@freebsd.org" > > >
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