Date: Sun, 5 Apr 2009 14:08:09 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Martin Schweizer <office@pc-service.ch> Cc: freebsd-questions@freebsd.org Subject: Re: ipfw: bandwidth limiting Message-ID: <alpine.BSF.2.00.0904051404080.22885@wojtek.tensor.gdynia.pl> In-Reply-To: <20090405085834.GL72129@saturn.pcs.ms> References: <20090405085834.GL72129@saturn.pcs.ms>
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> [snip]
> $ipfwcmd pipe 1 config bw 80KByte/s
> $ipfwcmd add pipe 1 ip from any to 192.168.10.0/24{100-254} via em1
> [snip]
>
> I'm not sure it works. When I do a large download which takes long and
> anybody else want download too, this download will only get a reduce
> bandwidth. I expect that the second download get same rate as the first one
> (and reduce the bandwidth from the first one). Is that correct?
your example limits it all to 80kB/s but does no traffic management. so it
may get the same rate (half by half) or may not.
do
$ipfwcmd pipe 1 config bw 80kByte/s
$ipfwcmd queue 1 config pipe 1 weight 1 mask dst-ip 0xffffffff
$ipfwcmd add queue 1 ip from any to 192.168.10.0/24{100-254} via em1
this will limit them to 80kB/s and perform fair-sharing based of hosts.
for example if one user on one computer will start 100 downloads, and
other on other computer will start 1 download, this will ensure that first
user will not takeover most bandwidth.
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