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Date: Tue, 23 Nov 2004 08:15:35 -0800
From: Brooks Davis <brooks@one-eyed-alien.net>
To: =?iso-8859-1?B?1f3pqiDVxQ==?= <zhangzhengnan@hotmail.com>
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cc: freebsd-ipfw@freebsd.org
Subject: Re: ipfw: queue size must be < 1MB
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On Tue, Nov 23, 2004 at 06:40:37AM +0000, =D5=FD=E9=AA =D5=C5 wrote:
> Hello all:
>=20
> I am trying to use IPFW + Dummynet with the follow command:
>=20
> ipfw pipe 100 config bw 500Mbit/s delay 50ms queue 4096Kbytes
>=20
> However, "ipfw: queue size must be < 1MB"  appears.
> Is there a way to let me use DUMMYNet with a large queue size?

Modify sbin/ipfw/ipfw2.c to allow queue sizes larger then 1024*1024 and
do the same in the set_fs_parms() function in sys/netinet/ip_dummynet.c.
I'm not sure why 1MB was chosen, it seems rather arbitrary.

-- Brooks

--=20
Any statement of the form "X is the one, true Y" is FALSE.
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