ALTQ integration and FreeBSD 4.x

[Jeremie Le Hen]

> After more than a day's mail-archive reading and FreeBSD 4.10 source
> code browsing, I don't think ALTQ has been integrated into 4.x branch
> (I know it is for the 5.x branch). Is that correct? I was wondering if
> some folks would know the status of ALTQ on FreeBSD 4.x; alternatively
> I'd appreciate patches to try out if you know one (there's an old one
> at  <ftp://ftp.csl.sony.co.jp/pub/kjc/altq-3.1-sys-altq-freebsd-4.6.patch>).
> Any related info apprecaited. Thanks.

About two years ago, I looked at ALTQ on FreeBSD 4.x.  Although the patch
compiles properly, there is one point that made me give it up : since
this ALTQ version is not bound to any firewall framework, it does use
it own packet matching engine which is - IMHO - very poor.  As far as I
can remember, you may indeed only match IP addresses and port numbers
while I wanted to give a high priority to tiny ACK packets and a very
low priority to non-interactive ssh session (matching the TOS field in
IPv4 header).

Regards,
-- 
Jeremie Le Hen
jeremie at le-hen.org