Date: Mon, 6 Oct 2003 17:23:32 -0400 (EDT) From: "Peter Brezny" <peter@purplecat.net> To: freebsd-ipfw@freebsd.org Subject: dummynet bw limit problem Message-ID: <3152.12.150.157.66.1065475412.squirrel@ssl.purplecat.net>
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Greetings,
I'm having difficulties with dummynet limiting connections when I set the
bw limit to anything greater than around 900 Kbit/sec.
Using pipes 1-8 below, even mixed and matched for asymmetric control work
fine, except when i bring in a pipe numbered 9 or greater.
I've tried changing the queue size from between 20Kbytes to 50Kbytes
I've tried increasing the buckets to 256
But no luck.
Interestingly, with the configuration below, if I ping a host on the
internet, tcpdump shows the request and the reply, but I get nothing on
the console.
If I mix and match the in and outbound pipes, I'll either get nothing on
the console, or:
ping: sendto: No buffer space available
On the system i'm testing from i've got:
sysctl net.inet.ip.fw.one_pass=0
Any suggestions are greatly appreciated.
# traffic shaping test
$fwcmd add pipe 9 all from any to any out via $oif
$fwcmd add pipe 10 all from any to any in via $oif
#
# pipe configuration.
# odd pipes are for outbound connections
# even pipes are for inbound connections
$fwcmd pipe 1 config bw .064Mbit/s
$fwcmd pipe 2 config bw .064Mbit/s
$fwcmd pipe 3 config bw .128Mbit/s
$fwcmd pipe 4 config bw .128Mbit/s
$fwcmd pipe 5 config bw .256Mbit/s
$fwcmd pipe 6 config bw .256Mbit/s
$fwcmd pipe 7 config bw 512Kbit/s
$fwcmd pipe 8 config bw 512Kbit/s
$fwcmd pipe 9 config bw 990Kbit/s
$fwcmd pipe 10 config bw 990Kbit/s
$fwcmd pipe 11 config bw 2048kbit/s
$fwcmd pipe 12 config bw 2048kbit/s
Peter Brezny
purplecat.net
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