Date: Tue, 06 May 2003 17:39:59 +0300 From: Mihail Balikov <misho@interbgc.com> To: John Brogan <jbrogan@jbrogan.com> Cc: freebsd-ipfw@freebsd.org Subject: Re: Bandwidth is limited under defined limit Message-ID: <20030506143959.92998.qmail@ns1.interbgc.com> In-Reply-To: <5.2.0.9.2.20030506074616.02930530@mail.jbrogan.com> References: <5.2.0.9.2.20030506074616.02930530@mail.jbrogan.com>
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try to increase HZ to 1000 (or more) /boot/loader.conf: kern.hz="1000" or recompile kernel with options HZ=1000 regards, Mihail Balikov John Brogan writes: > I'm not sure what details I should grab from our system but here is a > breakdown of the problem. > > Router: running freebsd 4.7-p10 running ipfw for for firewall and simple > traffic shaper. > > Circuit: 36mbps > > Problem: Trying to limit port 25 traffic from inside our network to use no > more than 30mbps at any time, leaving 6mbps for web and other traffic. I > am only getting 22mbps of outbound port 25 traffic no matter how I alter > the pipe statement (below) > > in my rc.firewall at the top of the ruleset I have: > > ${fwcmd} add pipe 1 tcp from x.x.x.x/24 to any 25 > ${fwcmd} pipe 1 config bw 30Mbit/s > > (I'm showing x's instead of digits for reference) > > If I do an ipfw -a list, the pipe shows up as: > > 00400 57500157 62391158214 pipe 1 tcp from x.x.x.x/24 to any 25 > > if I do an "ipfw pipe show" I get: > > 00001: 30.000 Mbit/s 0 ms 50 sl. 1 queues (1 buckets) droptail > mask: 0x00 0x00000000/0x0000 -> 0x00000000/0x0000 > BKT Prot ___Source IP/port____ ____Dest. IP/port____ Tot_pkt/bytes > Pkt/Byte Drp > 0 tcp x.x.x.x/3576 x.x.x.x/25 62443512 67705656555 0 0 6649763 > > I can set that "pipe 1 config bw" statement to 90mbps or 100mbps or > something outrageous and it still does not want to let bandwidth go over > 22mbps for port 25 traffic > > I am delivering news (opt-in only) for a very large cable news company and > we are trying to figure out how to get more bandwidth for port 25 but not > to saturate the circuit. If we remove the pipe alltogether just to make > certain it's not some hardware issue then we almost immediately saturate > the link at 100% with just port 25 traffic. > > I've read through the archives but have not found something similar to > this, or at least from what I searched for. What could be causing this > and if you have suggestions for other settings to make on this, I would > appreciate the help. > > I'd rather use ipfw than buy a piece of hardware to do the bandwidht > limiting because I've been a freebsd user back to the 1.1.5.1 days and > believe in the product and project 100% > > Oh, and if anyone knows how I can get in touch with Rod Grimes, please let > me know or pass my address along to him. I have a potential project for > him. > > Many Thanks > > John Brogan > jbrogan.com > > > > _______________________________________________ > freebsd-ipfw@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw > To unsubscribe, send any mail to "freebsd-ipfw-unsubscribe@freebsd.org"
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