Date: Tue, 1 Apr 2008 16:55:22 -0700 From: Christopher Cowart <ccowart@rescomp.berkeley.edu> To: freebsd@top-consulting.net Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD Traffic Shaping Message-ID: <20080401235522.GT21480@hal.rescomp.berkeley.edu> In-Reply-To: <20080401181836.13596owuuxf9az48@mail.top-consulting.net> References: <20080401181836.13596owuuxf9az48@mail.top-consulting.net>
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--XSEVMyPRvc8xgDhM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable freebsd@top-consulting.net wrote: > I am trying to limit the bandwidth available to some connections and I'm= =20 > not sure FreeBSD can handle this. Maybe some of you can help. Here's what= I=20 > need to have exactly. >=20 > No matter what the number of connections, each connection should have at= =20 > most/least 50kbps guaranteed outbound on port 80. >=20 > I've tried dummynet but it doesn't do what I need because if I define a= =20 > pipe with 1mbps and if I have 1000 connections, each connection will have= =20 > less than 50kbps. >=20 > Any way to do this in FreeBSD ? The ipfw(8) man page describes a "mask" configuration parameter. # /sbin/ipfw pipe 1 config mask src-ip 0xffffffff bw 56Kbit/s This creates a separate dynamic pipe per source ip address. Each pipe has a dedicated 56kbps. The man page implies that the mask can combine fields, so to uniquely identify "each connection", you would mask all bits of source and destination IP and ports. It looks like the "all" keyword might do just the trick. --=20 Chris Cowart Network Technical Lead Network & Infrastructure Services, RSSP-IT UC Berkeley --XSEVMyPRvc8xgDhM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iQIVAwUBR/LLaiPHEDszU3zYAQKf5g//XmiaUofd4drPsAbSjUTzf+pVizvj4E7h 4gVxG+FiptUf7wcagiIxXLy7YuyUqwqJ+z17AcnHYeYCwGs8n19auGOQG1QWCATE aCciCbijIVdQL0w5yE0RfyijnZkD38NdEJQ/LWzYsTN2hVB1TYuLne4Y5593WVBB +0meaciqy+oqSZ3++qKoQOpWEqFh3qAtGfASK+u3VCNWwJNYAu7YTh3ZinByT/0u 7m72UqYfPv75x9/R/lGhjS5sZ4Q6XSnvi9OR9l+mmq9dKnH1s8u3rm9twWfLoJXc NDOdENYJJ2pfQlltHTbyjvKaTIEiHq9J9IYsEXisXJH6SyU29FiP2iYOlxYuLFXo rrreHErCsa99ge76m9//hJcz533m5aNdZJPeeM+g6VFEAMMHu7+h2Unv0FsenwHm iwLog2AuYiFI/0WJL70hgKDk2kFcFzcVRv4qbcpLLCHeVTUgaohD/yZnvvZTcllD 5vtqgKGS5rJE7PZC3CCTSoOGFkq0MUl685xWSC4LR5GzSsWQGFMOk0v5FCkVEcj5 w/fdc/U45936nelLcMK5wmpbJE3OwralFEACvL6FOPFlZJJXv8dk1tP5apSTsEtf YihAo88Jq9bXaEUCJBvA8yIPzAfAQ4tp7qWDzXfa6ysWpuhk6Ziu4lbHeP6lDji8 FKC/KcqBEek= =LRgx -----END PGP SIGNATURE----- --XSEVMyPRvc8xgDhM--
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