Date: Fri, 30 Jul 2004 17:52:24 -0300 (ART) From: Fernando Gleiser <fgleiser@cactus.fi.uba.ar> To: freebsd-hackers@freebsd.org Cc: Max Laier <max@love2party.net> Subject: Re: Ready or not? Message-ID: <20040730174754.F30938@cactus.fi.uba.ar> In-Reply-To: <20040729201909.GA12370@shellma.zin.lublin.pl> References: <200407281145.27824.db@traceroute.dk> <200407281502.46395.max@love2party.net> <20040729201909.GA12370@shellma.zin.lublin.pl>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 29 Jul 2004, Pawel Malachowski wrote: > On Wed, Jul 28, 2004 at 03:02:38PM +0200, Max Laier wrote: > > Hello, > > > as PF+ALTQ gateway in production environment. For ALTQ there is the problem > > of "will your driver be supported?". > > Could You please explain a bit, why ALTQ model is placed so close > to network adapter driver (that they have to be modified) instead > of placing it in upper layers (and leaving NIC drivers untouched)? Short answer: ALTQ is short for "alternate queueing", it works by changing the default (FIFO) queueing discipline of the NIC. For the details and design criteria, look here: ftp://ftp.csl.sony.co.jp/pub/kjc/papers/dissertation.ps.gz http://www.csl.sony.co.jp/person/kjc/kjc/papers/usenix98/ Fer
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040730174754.F30938>