[LARTC] Structuring my shaping

[LARTC] Structuring my shaping

[Hayden Myers]

The shaping for my project needs to limit individual users while giving
each user equal priority.  My thoughts are to create a root prio qdisc and
then place a qdisc underneath that for each user.  Inside each of those
qdiscs will be the classes to subdivide traffic based on port.  Is this
the best way to accomplish what I want?  

Hayden Myers	
Support Manager
Skyline Network Technologies	
hayden@spinbox.com
(410)583-1337 option 2



_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] Structuring my shaping

[Stef Coene]

On Friday 18 October 2002 01:14, Hayden Myers wrote:
> The shaping for my project needs to limit individual users while giving
> each user equal priority.  My thoughts are to create a root prio qdisc and
> then place a qdisc underneath that for each user.  Inside each of those
> qdiscs will be the classes to subdivide traffic based on port.  Is this
> the best way to accomplish what I want?
You can use the efsq (enhanced SFQ).  This qdisc is based on the sfq qdisc, 
but you can create the hash keys based on ip addresses and/or ports (both src 
and dst).  Attach that qdisc as the root qdisc and you are done.

If you want more control, you have to add a cbq or htb qdisc as the root qdisc 
and  create a class and filter for each user.

Stef

-- 

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

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

[LARTC] Structuring my shaping (fwd)

[Hayden Myers]

I still don't understand how I can have multiple classes with a different
filter for each class and then change one of the filters without blowing
away the rest and having to have different priorities.  I'm shaping
traffic between users so all filters should have the same priority.
Anybody else have problems changing/deleting filters?  I see some messages
on the net but none have responses.  I saw something about u32h but his
examples give me RTNETLINK: invalid argument messages.  This is beginning
to irritate me highly.

Hayden Myers	
Support Manager
Skyline Network Technologies	
hayden@spinbox.com
(410)583-1337 option 2


---------- Forwarded message ----------
Date: Thu, 17 Oct 2002 19:14:34 -0400 (EDT)
From: Hayden Myers <hayden@compaq.skyline.net>
To: lartc@mailman.ds9a.nl
Subject: Structuring my shaping

The shaping for my project needs to limit individual users while giving
each user equal priority.  My thoughts are to create a root prio qdisc and
then place a qdisc underneath that for each user.  Inside each of those
qdiscs will be the classes to subdivide traffic based on port.  Is this
the best way to accomplish what I want?  

Hayden Myers	
Support Manager
Skyline Network Technologies	
hayden@spinbox.com
(410)583-1337 option 2




_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] Structuring my shaping (fwd)

[Stef Coene]

On Saturday 19 October 2002 21:59, Hayden Myers wrote:
> I still don't understand how I can have multiple classes with a different
> filter for each class and then change one of the filters without blowing
> away the rest and having to have different priorities.  I'm shaping
> traffic between users so all filters should have the same priority.
> Anybody else have problems changing/deleting filters?  I see some messages
> on the net but none have responses.  I saw something about u32h but his
> examples give me RTNETLINK: invalid argument messages.  This is beginning
> to irritate me highly.
This is not the answer you need, but it's an answer.  If nobody responds on 
your mail, it means nobody knows the answer/solution.
I always delete everything and after that reaplly all commands.  So I can't 
help you.

Stef

-- 

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

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] Structuring my shaping (fwd)

[Folke Aeon]

hi,

  i am not sure whether my point
will do your help or not. if you
have problems with deleting your
filters , then maybe the following
will do some help. if you don't
have a problem with that, then
just ignore this message :)

i delete my filters in a way
which just change the "add" to
"del" and nothing else different.

say, i add a filter :
tc filter add dev eth0 parent 1:0 prio 1 handle 0x30 tcindex classid 1:171

then, later i want to delete it,
i just type:
tc filter del dev eth0 parent 1:0 prio 1 handle 0x30 tcindex classid 1:171

hoping this will do some help.

by the way, this methord does can
delete the filter, but i am NOT
sure whether this will have some
negative influence on the other
classes.

regards
folke.


>From: Hayden Myers <hayden@spinbox.com>
>To: lartc@mailman.ds9a.nl
>Subject: [LARTC] Structuring my shaping (fwd)
>Date: Sat, 19 Oct 2002 15:59:47 -0400 (EDT)
>
>I still don't understand how I can have multiple classes with a different
>filter for each class and then change one of the filters without blowing
>away the rest and having to have different priorities.  I'm shaping
>traffic between users so all filters should have the same priority.
>Anybody else have problems changing/deleting filters?  I see some messages
>on the net but none have responses.  I saw something about u32h but his
>examples give me RTNETLINK: invalid argument messages.  This is beginning
>to irritate me highly.
>
>Hayden Myers
>Support Manager
>Skyline Network Technologies
>hayden@spinbox.com
>(410)583-1337 option 2
>
>
>---------- Forwarded message ----------
>Date: Thu, 17 Oct 2002 19:14:34 -0400 (EDT)
>From: Hayden Myers <hayden@compaq.skyline.net>
>To: lartc@mailman.ds9a.nl
>Subject: Structuring my shaping
>
>The shaping for my project needs to limit individual users while giving
>each user equal priority.  My thoughts are to create a root prio qdisc and
>then place a qdisc underneath that for each user.  Inside each of those
>qdiscs will be the classes to subdivide traffic based on port.  Is this
>the best way to accomplish what I want?
>
>Hayden Myers
>Support Manager
>Skyline Network Technologies
>hayden@spinbox.com
>(410)583-1337 option 2
>
>
>
>
>_______________________________________________
>LARTC mailing list / LARTC@mailman.ds9a.nl
>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/


_________________________________________________________________
Get a speedy connection with MSN Broadband.  Join now! 
http://resourcecenter.msn.com/access/plans/freeactivation.asp

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] Structuring my shaping (fwd)

[Werner Almesberger]

Hayden Myers wrote:
> I still don't understand how I can have multiple classes with a different
> filter for each class and then change one of the filters without blowing
> away the rest and having to have different priorities.  I'm shaping
> traffic between users so all filters should have the same priority.

First of all, you need to distinguish between filters and filter
elements. iproute2/tc makes this distinction rather vague, but
it's still there.

Filters are organized in lists at qdiscs or classes. Within each
such list, they are unique with respect to protocol and priority.
So you can't have multiple filters with the same priority. Note
that the filter priority has nothing to do with the priority of
the class in the qdisc.

If any of this sounds confusing to you, you may want to have a
quick look at one of the following two documents:
ftp://icaftp.epfl.ch/pub/people/almesber/pub/tcio-current.ps.gz
ftp://icaftp.epfl.ch/pub/people/almesber/junk/tc-04FEB2001-0.tar.gz
(just ignore the implementation bits).

You could parent filters at classes, but this still implies some
evaluation order, only that this order now depends on subtle
qdisc internals. Also, not all qdiscs let you do this (e.g.
sch_prio doesn't).

> Anybody else have problems changing/deleting filters?  I see some messages
> on the net but none have responses.  I saw something about u32h but his
> examples give me RTNETLINK: invalid argument messages.  This is beginning
> to irritate me highly.

Why don't you try to write a small script that produces the
problem, run it through tcsim (tcsim enables all traffic control
elements, so there are no problems with things being
unconfigured, modules missing, bad versions of iproute2/tc,
etc.), and if the problem still occurs with tcsim, post your
script to the list ?

To run your script with tcsim, simply do

$ tcsim -v
dev eth0  // or whatever device your script is for
tc qdisc add dev eth0 ...etc...
^D

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina         wa@almesberger.net /
/_http://www.almesberger.net/____________________________________________/
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] Structuring my shaping (fwd)

[Alexey Talikov]

Hello Hayden,

filters use slightly different pointers (and also hash tables for
quick filtering)
I don't use change possibilities with tc, at first del then add new
one.

[root@proxy /root]# tc -s filter ls dev imq0

filter parent 1: protocol ip pref 5 u32 
filter parent 1: protocol ip pref 5 u32 fh 800: ht divisor 1 
filter parent 1: protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:10 
  match 00160000/ffff0000 at 20
filter parent 1: protocol ip pref 5 u32 fh 800::801 order 2049 key ht 800 bkt 0 flowid 1:10 
  match 00170000/ffff0000 at 20

-----------------------------------
mailto:alexey_talikov@texlab.com.uz
BR
Alexey Talikov
FORTEK
-----------------------------------

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/