All of lore.kernel.org
 help / color / mirror / Atom feed
From: Patrick McHardy <kaber@trash.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] bug in new IMQ ?
Date: Tue, 09 Apr 2002 21:19:52 +0000	[thread overview]
Message-ID: <marc-lartc-101838728131538@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101826826118987@msgid-missing>

Martin Devera schrieb:

> > I thought about changing qos subsystem to support real ingress queueing
> > without imq or something. Kind of two root qdiscs per device. What do
> > you
> > (and others) think about this ?
> 
> There already is somethink like it (ingres) only it doesn't queue ..

:) In my eyes current ingres is just a hack.

> IMO the main problem will be to understand whole machinery in
> sch_generic.c and likes.
> Also Jamal and Alexey are against this ... But I think it is worth

Why ? I guess IMQ prooves ingress shaping DOES work so i can't see any
good reason ..

> of doing it. Especially in 2.4 where we have both rx and tx softirqs
> it should not be so comlicated to do it.

One problem i see is that unlike imq it would probably be placed in
net_rx_action so you can't use netfilter marks for filters which i guess
is really bad for ingress because without iptables you cannot use any
kind of connection state etc. information for filters so preventing
DOS will be much harder, but that will probably remain unsolvable ..

Patrick
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

      parent reply	other threads:[~2002-04-09 21:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-08 12:16 [LARTC] bug in new IMQ ? SIMOND François
2002-04-08 13:28 ` Patrick McHardy
2002-04-08 13:32 ` Patrick McHardy
2002-04-08 14:33 ` Martin Devera
2002-04-09 13:04 ` Patrick McHardy
2002-04-09 13:56 ` Martin Devera
2002-04-09 21:19 ` Patrick McHardy [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=marc-lartc-101838728131538@msgid-missing \
    --to=kaber@trash.net \
    --cc=lartc@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.