[LARTC] Can anyone fix this?

[LARTC] Can anyone fix this?

[Chris Jensen]

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Hi,
I appologise for the bad ettiquite of this, but I have tried looking for some 
HTB examples that would help me, and am having trouble understanding how the 
tc filters should work, but I can't figure out why this isn't working.
I've written this script, based upon the ultimate traffic shaper at LARTC, to 
try and shape for me and my 3 housemates.
The idea being to give each user approx 1 quarter of the bandwidth, and then 
subdivide that into 3 priorities.

None of the traffic seems to get clasiffied though.

Can anyone help me out?


-- 
Chris Jensen
chris@drspirograph.com

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Wait: Did you know that there's a direct correlation between the decline of
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Re: [LARTC] Can anyone fix this?

[Andy Furniss]

Chris Jensen wrote:
> Hi,
> I appologise for the bad ettiquite of this, but I have tried looking for some 
> HTB examples that would help me, and am having trouble understanding how the 
> tc filters should work, but I can't figure out why this isn't working.
> I've written this script, based upon the ultimate traffic shaper at LARTC, to 
> try and shape for me and my 3 housemates.
> The idea being to give each user approx 1 quarter of the bandwidth, and then 
> subdivide that into 3 priorities.
> 
> None of the traffic seems to get clasiffied though.

You can't use u32 to filter egress on src if you are NATing - you need 
to mark in POSTROUTING mangle and filter on fw.

Have a look at the kptd on www.docum.org .

Andy.



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Re: [LARTC] Can anyone fix this?

[Chris Jensen]

> You can't use u32 to filter egress on src if you are NATing - you need
> to mark in POSTROUTING mangle and filter on fw.
>
> Have a look at the kptd on www.docum.org .

Whoops, I was aware of this. I must've sent an old version of the script to 
the list, cause I had fixed that, and that's not the issue anymore.

Basically I guess what I really need is a good example of filtering and 
buckets with two or more tiers (all the examples seem to be only one)

eg
root (100kbps)
	flatmate1(22kbps)
		hi prio
		default
		lo prio
	flatmate2-4 (22 kbps each)
	default (12kbps)

One of the troubles I'm having is setting up defaults. ie. Once a packet is 
filtered into one of the flatmates, how can I send it to the default bucket 
if it doesn't fall into the other two categories.
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Re: [LARTC] Can anyone fix this?

[Andreas Klauer]

Am Wednesday 19 May 2004 14:26 schrieb Chris Jensen:
> Whoops, I was aware of this. I must've sent an old version of the script
> to the list, cause I had fixed that, and that's not the issue anymore.

If you make an up-to-date version available somewhere, 
I'll have a look at it. Don't want to waste my time with
some kind of old version. :-)

> root (100kbps)
> 	flatmate1(22kbps)
> 		hi prio
> 		default
> 		lo prio
> 	flatmate2-4 (22 kbps each)
> 	default (12kbps)

My Fair NAT script [1] uses a very similar structure - however, I did 
high/default/low prio stuff you desire not with HTB classes, but with
a PRIO qdisc attached to the flatmate HTB class. Maybe it's worth a look? 

> One of the troubles I'm having is setting up defaults. ie. Once a packet
> is filtered into one of the flatmates, how can I send it to the default
> bucket if it doesn't fall into the other two categories.

Is it possible to attach filter rules to HTB classes?
All my filters belong to some qdisc, so I don't know.

HTH
Andreas

[1] Fair NAT: http://www.metamorpher.de/fairnat/
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Re: [LARTC] Can anyone fix this?

[Dmitry Golubev]

Hello, 

> Is it possible to attach filter rules to HTB classes?
> All my filters belong to some qdisc, so I don't know.

Quote from LATRC: Also, with HTB, you should attach all filters to the root!

Dmitry

On Wednesday 19 May 2004 17:17, Andreas Klauer <Andreas.Klauer@metamorpher.de> 
wrote:
> Am Wednesday 19 May 2004 14:26 schrieb Chris Jensen:
> > Whoops, I was aware of this. I must've sent an old version of the script
> > to the list, cause I had fixed that, and that's not the issue anymore.
>
> If you make an up-to-date version available somewhere,
> I'll have a look at it. Don't want to waste my time with
> some kind of old version. :-)
>
> > root (100kbps)
> > 	flatmate1(22kbps)
> > 		hi prio
> > 		default
> > 		lo prio
> > 	flatmate2-4 (22 kbps each)
> > 	default (12kbps)
>
> My Fair NAT script [1] uses a very similar structure - however, I did
> high/default/low prio stuff you desire not with HTB classes, but with
> a PRIO qdisc attached to the flatmate HTB class. Maybe it's worth a look?
>
> > One of the troubles I'm having is setting up defaults. ie. Once a packet
> > is filtered into one of the flatmates, how can I send it to the default
> > bucket if it doesn't fall into the other two categories.
>
> Is it possible to attach filter rules to HTB classes?
> All my filters belong to some qdisc, so I don't know.
>
> HTH
> Andreas
>
> [1] Fair NAT: http://www.metamorpher.de/fairnat/
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Re: [LARTC] Can anyone fix this?

[Patrick McHardy]

Dmitry Golubev wrote:
> Quote from LATRC: Also, with HTB, you should attach all filters to the root!

Then LARTC is wrong. HTB first tries to classify by priority,
if that fails it follows the filter chain from the root until
it hits a leaf-class, if that fails it tries if the default
class is a leaf-class, if even that fails it uses the direct
queue. BTW, HFSC does it the same way, but there is no direct
queue, so unclassified packets are just dropped.

Regards
Patrick

> 
> Dmitry
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Re: [LARTC] Can anyone fix this?

[Dmitry Golubev]

Hello, 

What do you mean by direct queue? If I do not have any filter rules for a 
packet, I thought it would not be limited at all...

Best regards,
Dmitry Golubev

On Sunday 23 May 2004 19:37, Patrick McHardy <kaber@trash.net> wrote:
> Dmitry Golubev wrote:
> > Quote from LATRC: Also, with HTB, you should attach all filters to the
> > root!
>
> Then LARTC is wrong. HTB first tries to classify by priority,
> if that fails it follows the filter chain from the root until
> it hits a leaf-class, if that fails it tries if the default
> class is a leaf-class, if even that fails it uses the direct
> queue. BTW, HFSC does it the same way, but there is no direct
> queue, so unclassified packets are just dropped.
>
> Regards
> Patrick
>
> > Dmitry
>
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Re: [LARTC] Can anyone fix this?

[Chris Jensen]

On Sunday 23 May 2004 22:08, Dmitry Golubev wrote:
> Hello,
>
> > Is it possible to attach filter rules to HTB classes?
> > All my filters belong to some qdisc, so I don't know.
>
> Quote from LATRC: Also, with HTB, you should attach all filters to the
> root!

Sorry, my bad, I'm still coming to terms with all the terminology, so probably 
describe that badly.
But going back to my tree:

> > > root (100kbps)
> > > 	flatmate1(22kbps)
> > > 		hi prio
> > > 		default
> > > 		lo prio
> > > 	flatmate2-4 (22 kbps each)
> > > 	default (12kbps)

Can I set it up (wherever I attach filters) so that unclasified packets will 
default to flatemate1, and then packets that aren't classified within 
flatmate fall into the default? (Each flatmate would have their own default)

> > My Fair NAT script [1] uses a very similar structure - however, I did
> > high/default/low prio stuff you desire not with HTB classes, but with
> > a PRIO qdisc attached to the flatmate HTB class. Maybe it's worth a look?

Yes, I'd like to see it if I could. Again, trying to get familiar witht things 
so I'm not sure weather it would be better to try and nest a PRIO or a HTB in 
the parent HTB.

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Re: [LARTC] Can anyone fix this?

[Stef Coene]

On Sunday 23 May 2004 18:37, Patrick McHardy wrote:
> Dmitry Golubev wrote:
> > Quote from LATRC: Also, with HTB, you should attach all filters to the
> > root!
>
> Then LARTC is wrong. 
LARC is not up-to-date.  It was so in pre-htb3 versions.

Stef

-- 
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 "Using Linux as bandwidth manager"
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Re: [LARTC] Can anyone fix this?

[Andreas Klauer]

Am Monday 24 May 2004 18:23 schrieb Chris Jensen:
> > Andreas Klauer:
> > > My Fair NAT script [1] uses a very similar structure - however, I
> > > did high/default/low prio stuff you desire not with HTB classes, but
> > > with a PRIO qdisc attached to the flatmate HTB class. Maybe it's
> > > worth a look?
>
> Yes, I'd like to see it if I could.

Well, feel free to download it - I posted the link already at the bottom of 
the very same mail you quoted above: http://www.metamorpher.de/fairnat/

> Again, trying to get familiar witht things so I'm not sure weather it
> would be better to try and nest a PRIO or a HTB in the parent HTB.

It's quite easy to replace the class structure my script creates with 
something else. I don't know if it's better to use more than one HTB class 
per user - I didn't do it because the (guaranteed) HTB rates for leaf 
classes would get even lower if I had to divide them. And PRIO works well 
enough for me, so... 

Andreas
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