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From: Stef Coene <stef.coene@docum.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] u32 filter won't match
Date: Sun, 23 Nov 2003 14:08:26 +0000	[thread overview]
Message-ID: <marc-lartc-106959660729587@msgid-missing> (raw)
In-Reply-To: <marc-lartc-106956238912741@msgid-missing>

On Sunday 23 November 2003 14:44, Fredrik Tolf wrote:
>  > If you add a filter to a qdisc, it has to point to a class of that
>  > qdisc.  Not to an other class.
>
> That confuses me a bit. It does certainly make it work, and it does
> certainly make sense. However, in the advanced routing howto, section
> 9.5.2.1, it seems to very much implicate that you can create filters
> like that. Is that howto wrong or did I misinterpret something? If you
> want to see it, follow this URL:
>
> http://www.tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.qdisc.classful.html
I know.  You can do it.  You can point your filter to a class of an other 
qdisc and it will work, but not always like expected.  To be safe, use 
filters within the same qdisc.

>  > > (The strange thing is that when I used "parent 2:", no filter was
>  > > added at all... What's up with that?)
>  >
>  > Try
>  > tc -s -d filter show dev eth1 parent 2:
>
> Hehe... Don't I feel stupid now... Oh well, at least now I know (I
> thought all filters were in a per-interface namespace). Thank you for
> pointing that out.
I made the same mistake before :)

Stef

-- 
stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.openprojects.net

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  parent reply	other threads:[~2003-11-23 14:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-23  4:03 [LARTC] u32 filter won't match Fredrik Tolf
2003-11-23 10:16 ` Stef Coene
2003-11-23 13:44 ` Fredrik Tolf
2003-11-23 14:08 ` Stef Coene [this message]
2003-11-23 18:46 ` Fredrik Tolf

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