[LARTC] Question on TC filter

[LARTC] Question on TC filter

[Cheng Kwok Wing, William]

Hi,

I want work out a GUI interface for htb and now here
comes to the part about adding and removing classes
and filters.

Here is an example script.
TC="tc"
DEV="dev eth1"

echo "Add root qdisc, default traffic go to 1:30"
$TC qdisc add $DEV root handle 1: htb default 30

echo "Divide the traffic into different classes and
levels"
# -------- level 1 --------
$TC class add $DEV parent 1: classid 1:1 htb rate
100mbit burst 15k
# -------- level 2 --------
$TC class add $DEV parent 1:1 classid 1:10 htb rate
400kbit ceil 600kbit burst 10m
$TC class add $DEV parent 1:1 classid 1:20 htb rate
1mbit ceil 1.5mbit burst 1m

echo "SFQ for beneath these classes:"
$TC qdisc add $DEV parent 1:10 handle 10: sfq perturb
10
$TC qdisc add $DEV parent 1:20 handle 20: sfq perturb
10

echo "Add the filters which direct traffic to the
right classes:"
tc filter add $DEV parent 1: protocol ip u32 match ip
dst 192.168.0.2/32 flowid 1:10
tc filter add $DEV parent 1: protocol ip u32 match ip
dst 192.168.0.3/32 flowid 1:20

Suppose I want to remove the class 1:20. What should I
do? I need to first remove the filters with flowid
1:20, but how can I remove it independently???
If I run "tc filter del $DEV parent 1:0......", then
all filters will be removed. Any suggestion on how to
solve this problem or a better way to organise the
classes or filters??

Thanks in advance,
William

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Re: [LARTC] Question on TC filter

[Stef Coene]

On Friday 10 January 2003 19:24, Cheng Kwok Wing, William wrote:
> Hi,
>
> I want work out a GUI interface for htb and now here
> comes to the part about adding and removing classes
> and filters.
Like I do :à
http://home.docum.org/qos/


> Suppose I want to remove the class 1:20. What should I
> do? I need to first remove the filters with flowid
> 1:20, but how can I remove it independently???
> If I run "tc filter del $DEV parent 1:0......", then
> all filters will be removed. Any suggestion on how to
> solve this problem or a better way to organise the
> classes or filters??
I create all rules, generate the tc script, execute the script.  So no 
changing of running classes and filters.  I don't think you can delete 1 
filter like you want.  

Stef

-- 

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

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Re: [LARTC] Question on TC filter

[Cheng Kwok Wing, William]

Thanks for your reply. I've visited your web
http://home.docum.org/qos/ already. I just wonder if
there are some better ways to add and remove class one
by one rather than writing the script all the time.

Wing


--- Stef Coene <stef.coene@docum.org> wrote:
> On Friday 10 January 2003 19:24, Cheng Kwok Wing,
> William wrote:
> > Hi,
> >
> > I want work out a GUI interface for htb and now
> here
> > comes to the part about adding and removing
> classes
> > and filters.
> Like I do :?> http://home.docum.org/qos/
> 
> 
> > Suppose I want to remove the class 1:20. What
> should I
> > do? I need to first remove the filters with flowid
> > 1:20, but how can I remove it independently???
> > If I run "tc filter del $DEV parent 1:0......",
> then
> > all filters will be removed. Any suggestion on how
> to
> > solve this problem or a better way to organise the
> > classes or filters??
> I create all rules, generate the tc script, execute
> the script.  So no 
> changing of running classes and filters.  I don't
> think you can delete 1 
> filter like you want.  
> 
> Stef
> 
> -- 
> 
> stef.coene@docum.org
>  "Using Linux as bandwidth manager"
>      http://www.docum.org/
>      #lartc @ irc.oftc.net
> 


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Re: [LARTC] Question on TC filter

[Cheng Kwok Wing, William]

Thanks for your reply. I've visited your web
http://home.docum.org/qos/ already. I just wonder if
there are some better ways to add and remove class one
by one rather than writing the script all the time.

In addition, each time your run the tc script. You
need to remove the root qdisc, i.e. clear all setting,
first. Then, all counters are reset......... How to
solve such problem if I want to dump the data from "tc
-s -d class dev eth1" and plot graph using rrdtools
(without losing previous data)??


Wing


--- Stef Coene <stef.coene@docum.org> wrote:
> On Friday 10 January 2003 19:24, Cheng Kwok Wing,
> William wrote:
> > Hi,
> >
> > I want work out a GUI interface for htb and now
> here
> > comes to the part about adding and removing
> classes
> > and filters.
> Like I do :?> http://home.docum.org/qos/
> 
> 
> > Suppose I want to remove the class 1:20. What
> should I
> > do? I need to first remove the filters with flowid
> > 1:20, but how can I remove it independently???
> > If I run "tc filter del $DEV parent 1:0......",
> then
> > all filters will be removed. Any suggestion on how
> to
> > solve this problem or a better way to organise the
> > classes or filters??
> I create all rules, generate the tc script, execute
> the script.  So no 
> changing of running classes and filters.  I don't
> think you can delete 1 
> filter like you want.  
> 
> Stef
> 
> -- 
> 
> stef.coene@docum.org
>  "Using Linux as bandwidth manager"
>      http://www.docum.org/
>      #lartc @ irc.oftc.net
> 


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Re: [LARTC] Question on TC filter

[Stef Coene]

On Saturday 11 January 2003 05:57, Cheng Kwok Wing, William wrote:
> Thanks for your reply. I've visited your web
> http://home.docum.org/qos/ already. I just wonder if
> there are some better ways to add and remove class one
> by one rather than writing the script all the time.
>
> In addition, each time your run the tc script. You
> need to remove the root qdisc, i.e. clear all setting,
> first. Then, all counters are reset......... How to
> solve such problem if I want to dump the data from "tc
> -s -d class dev eth1" and plot graph using rrdtools
> (without losing previous data)??
rrdtool is smart enough to understand what happens.  It stores the difference 
between 2 updates and a negative update is not possible.  So that update is 
ignored.  But that's hardly visible on a graph.
So restting the counters is no problem if you use rrdtool to store the data.

Stef

-- 

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

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