From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] problem with the howto sample
Date: Thu, 06 Dec 2001 22:52:29 +0000 [thread overview]
Message-ID: <marc-lartc-100767921201476@msgid-missing> (raw)
In-Reply-To: <marc-lartc-100767692924897@msgid-missing>
On Thu, Dec 06, 2001 at 11:14:01PM +0100, Patrick Nagelschmidt wrote:
> This configuration limits webserver traffic to 5mbit and smtp traffic to 3 mbit, and limits the sum to 5mbit:
> [...]
> # tc class add dev eth0 parent 1:1 classid 10: cbq bandwidth 100Mbit \
> rate 5Mbit weight 0.5Mbit prio 5 allot 1514 cell 8 maxburst 20 \
> avpkt 1000 bounded
>
> the above leads to an Invalid argument. it seems that tc doesnt like the
> classid 10: (at least the error disappears if i change it to e.g. 1:2).
TC likes it just fine. It is the kernel that doesn't. This is my mistake, I
decided to spruce up the examples a bit without testing them afterwards.
> have i done something wrong or is it an error in the example? this problem
Can you check if the CBQ example does work not?
> leads me also to the next question: is the naming of classes essential for
> building them correctly? is parent 1:1 classid 10:0 somehow different from
> parent 1:1 classid 1:2? up to now i thought classid was only a name and
> the parent would be enough to make the classes' positions in the tree
> unambiguously...
Well, major numbers are a bit special in this respect. There is some stuff
going on with userspace per-socket specified PRIOs helping classify traffic,
the kernel does a lot of testing if you remain within your major number.
This is one of the completely never ever mentioned parts of CBQ which I hope
to bug people about.
Added you to the Thanks To list, thanks!
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next prev parent reply other threads:[~2001-12-06 22:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-06 22:14 [LARTC] problem with the howto sample Patrick Nagelschmidt
2001-12-06 22:52 ` bert hubert [this message]
2001-12-06 23:14 ` Patrick Nagelschmidt
2001-12-06 23:19 ` bert hubert
2001-12-07 0:17 ` Patrick Nagelschmidt
2001-12-07 4:35 ` Michael T. Babcock
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