[LARTC] how tc deal with non-classified packets

[LARTC] how tc deal with non-classified packets

[Daniel Lee]

Hi all,

Does any one know how tc deal with non-classified packets?
For example, I set up 10 classes with "bounded" and "isolated" rules to
occupy the whole BW on my LAN and these classes are filtered by their ip dst
add with u32.  And then one long train of pkts which not belong to these 10
classes enter tc router.  Then, what will happen?  tc will just drop it or
consume others BW to send it.

In my measurement, tc will occupy BW of the classified classes and send this
"intruder".  The experiment data does not seem to be reasonable!

Any related information or experiment data is highly appreciated. 


Best Regards
Daniel Lee 
e-mail:daniel_lee@ezhi.com

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Re: [LARTC] how tc deal with non-classified packets

[Ramin Alidousti]

On Tue, May 22, 2001 at 09:23:42AM +0800, Daniel Lee wrote:

> Hi all,
> 
> Does any one know how tc deal with non-classified packets?
> For example, I set up 10 classes with "bounded" and "isolated" rules to
> occupy the whole BW on my LAN and these classes are filtered by their ip dst
> add with u32.  And then one long train of pkts which not belong to these 10
> classes enter tc router.  Then, what will happen?  tc will just drop it or
> consume others BW to send it.
> 
> In my measurement, tc will occupy BW of the classified classes and send this
> "intruder".  The experiment data does not seem to be reasonable!
> 
> Any related information or experiment data is highly appreciated. 

Very good question. As long as any entry of your routing tables match the
packetss they'll be routed out of the box, so will not be dropped. But,
we need a guru to explain which of the queues is used for these packets???

Ramin


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Re: [LARTC] how tc deal with non-classified packets

[Wingtung.Leung]

On Tue, 22 May 2001, Daniel Lee wrote:

> Does any one know how tc deal with non-classified packets?
> For example, I set up 10 classes with "bounded" and "isolated" rules to
> occupy the whole BW on my LAN and these classes are filtered by their ip dst
> add with u32.  And then one long train of pkts which not belong to these 10
> classes enter tc router.  Then, what will happen?  tc will just drop it or
> consume others BW to send it.
>
> In my measurement, tc will occupy BW of the classified classes and send this
> "intruder".  The experiment data does not seem to be reasonable!
>
> Any related information or experiment data is highly appreciated.

I *assume* the unclassified packet will be dropped into one of those
isolated queues, *if* it has bandwidth left of course.

Wether it would be apropiate or not: I think it is, because an isolated
class disallows packets from *other* classes, not *unclassified* packets.

Just my idea.



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