Re: [LARTC] Clearing all filters

Re: [LARTC] Clearing all filters

[Jose Miguel Varet]

easy... you can erase your tc config at the root level :

# tc qdisc del $device root

That will erase the main qdisc discipline in $device. Since all classes,
cbqs/sfqs , filters, etc. hang from that one , all of them will be removed
too.
Greets,


            Jose Miguel Varet
            Tech Dept. Chief
            ATT, S.L.

----- Original Message -----
From: "Michael T. Babcock" <mbabcock@fibrespeed.net>
To: <lartc@mailman.ds9a.nl>
Sent: Wednesday, July 11, 2001 7:02 PM
Subject: [LARTC] Clearing all filters


> I'd like to be able to wipe out all classes and/or filters (like doing
> an ipchains -F for packet filter rules) quickly at the beginning of my
> scripts.  Is there a way to do this that I'm not aware of?
>
> --
> Michael T. Babcock
> CTO, FibreSpeed
>
>
>
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO:
http://ds9a.nl/2.4Routing/
>


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[LARTC] Clearing all filters

[Michael T. Babcock]

I'd like to be able to wipe out all classes and/or filters (like doing 
an ipchains -F for packet filter rules) quickly at the beginning of my 
scripts.  Is there a way to do this that I'm not aware of?

-- 
Michael T. Babcock
CTO, FibreSpeed



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Re: [LARTC] Clearing all filters

[James A. Crippen]

On Wed, 11 Jul 2001, Michael T. Babcock wrote:

> I'd like to be able to wipe out all classes and/or filters (like doing
> an ipchains -F for packet filter rules) quickly at the beginning of my
> scripts.  Is there a way to do this that I'm not aware of?

You can do so by deleting the root qdisc for each device.  Thus, supposing
some configuration similar to the following,

  qdisc cbq 1: dev eth1 rate 100Mbit (bounded,isolated) prio no-transmit
  qdisc cbq 2: dev eth2 rate 100Mbit (bounded,isolated) prio no-transmit

you can delete the root qdisc from each device with this command:

  # tc qdisc del dev eth1 root
  # tc qdisc del dev eth2 root

Everything that depends on the root qdisc (which, IIRC, is indeed
everything) will be deleted when the root qdisc is deleted.

HTH, HAND
'james

-- 
James A. Crippen <james@unlambda.com> ,-./-.  Anchorage, Alaska,
Lambda Unlimited: Recursion 'R' Us   |  |/  | USA, 61.2069 N, 149.766 W,
Y = \f.(\x.f(xx)) (\x.f(xx))         |  |\  | Earth, Sol System,
Y(F) = F(Y(F))                        \_,-_/  Milky Way.


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Re: [LARTC] Clearing all filters

[Michael T. Babcock]

Jose Miguel Varet wrote:

>easy... you can erase your tc config at the root level :
>
># tc qdisc del $device root
>
>That will erase the main qdisc discipline in $device. Since all classes,
>cbqs/sfqs , filters, etc. hang from that one , all of them will be removed
>too.
>
I was not aware that these dependancies were well-maintained in 
kernel-space.  Thank-you.

-- 
Michael T. Babcock
CTO, FibreSpeed




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