[LARTC] HTB with SFQ in leaf classes. & setups question

[LARTC] HTB with SFQ in leaf classes. & setups question

[lartc]

Hello,

I wrote something yesterday.
Now the situation is even worse. Communicatin with some clients wont work at all
until i restart the traffic shaping box.
(It works for some hours, then suddenly dies (meaning the client cant be pinged.
Suspected at peak hours)
Maybe the computer resources are weak, maybe its setup faulty

It's a PIII 1.13Ghz, 512mb ram.

~250 users are shaped. From 32kbit/s to 256kbit/s
Traffic is to be shaped as following:

(1) [ 8 Mbit. In (internet->us) ]
    `- (2) client 1 .
   |                `` (3) Local Traffic (can borrow from Foreign)
   |                 ` (4) Foreign Traffic
    `- (2) client 2 .
   |                `` (3) Local Traffic (can borrow from Foreign)
   |                 ` (4) Foreign Traffic
    `- (2) client N .
                    `` (3) Local Traffic (can borrow from Foreign)
                     ` (4) Foreign Traffic

To achieve the following i have set it up as:

# root handle for 8Mbit (1)
/sbin/tc qdisc add dev eth2 root handle 1: htb

# client class (2) with maximum allowed traffic (256kbit for example)
/sbin/tc class add dev eth2 parent 1: classid 1:1 htb rate 256kbit ceil 256kbit

# Local traffic (3) class (Local should work at maximum, tho if Foreign is used,
it should get 1/4th)
# So, Foreign should be 1/4th of Local traffic.
# (Is this class correct? Its meant to have 192kbit/s for Local traffic and if
Foreign is not used
# then it can have 256kbit)
/sbin/tc class add dev eth2 parent 1:1 classid 1:2 htb rate 192kbit ceil 256kbit

# Foreign traffic (4) class (Not more than 64kbit/s)
/sbin/tc class add dev eth2 parent 1:1 classid 1:3 htb rate 64kbit ceil 64kbit

# Now I attach SFQ to classes
# (to Local traffic class)
/sbin/tc qdisc add dev eth2 parent 1:2 handle 1500: sfq perturb 10

# (to Foreign traffic class)
/sbin/tc qdisc add dev eth2 parent 1:3 handle 1501: sft perturb 10


# Now add filters
# (wont write)
# flowid 1:2
# flowid 1:#

.. everything repeated for all users. (changing data rate and class IDs)

Is there anything wrong with my setup?


P.Krumins



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Re: [LARTC] HTB with SFQ in leaf classes. & setups question

[Stef Coene]

On Tuesday 10 December 2002 19:48, lartc@e-apollo.lv wrote:
> Hello,
>
> I wrote something yesterday.
> Now the situation is even worse. Communicatin with some clients wont work
> at all until i restart the traffic shaping box.
> (It works for some hours, then suddenly dies (meaning the client cant be
> pinged. Suspected at peak hours)
> Maybe the computer resources are weak, maybe its setup faulty
Do you have any errors in dmesg?  And how is the memory and cpu usage ?

> It's a PIII 1.13Ghz, 512mb ram.
>
> ~250 users are shaped. From 32kbit/s to 256kbit/s
> Traffic is to be shaped as following:
>
> (1) [ 8 Mbit. In (internet->us) ]
>     `- (2) client 1 .
>
>    |                `` (3) Local Traffic (can borrow from Foreign)
>    |                 ` (4) Foreign Traffic
>
>     `- (2) client 2 .
>
>    |                `` (3) Local Traffic (can borrow from Foreign)
>    |                 ` (4) Foreign Traffic
>
>     `- (2) client N .
>                     `` (3) Local Traffic (can borrow from Foreign)
>                      ` (4) Foreign Traffic
>
> To achieve the following i have set it up as:
>
> # root handle for 8Mbit (1)
> /sbin/tc qdisc add dev eth2 root handle 1: htb
>
> # client class (2) with maximum allowed traffic (256kbit for example)
> /sbin/tc class add dev eth2 parent 1: classid 1:1 htb rate 256kbit ceil
> 256kbit
>
> # Local traffic (3) class (Local should work at maximum, tho if Foreign is
> used, it should get 1/4th)
> # So, Foreign should be 1/4th of Local traffic.
> # (Is this class correct? Its meant to have 192kbit/s for Local traffic and
> if Foreign is not used
> # then it can have 256kbit)
> /sbin/tc class add dev eth2 parent 1:1 classid 1:2 htb rate 192kbit ceil
> 256kbit
>
> # Foreign traffic (4) class (Not more than 64kbit/s)
> /sbin/tc class add dev eth2 parent 1:1 classid 1:3 htb rate 64kbit ceil
> 64kbit
>
> # Now I attach SFQ to classes
> # (to Local traffic class)
> /sbin/tc qdisc add dev eth2 parent 1:2 handle 1500: sfq perturb 10
>
> # (to Foreign traffic class)
> /sbin/tc qdisc add dev eth2 parent 1:3 handle 1501: sft perturb 10
>
>
> # Now add filters
> # (wont write)
> # flowid 1:2
> # flowid 1:#
>
> .. everything repeated for all users. (changing data rate and class IDs)
>
> Is there anything wrong with my setup?
No.  But maye you can create 1 super class (but I don't think it will change a 
lot) :
root qdisc 1:0
  class 1:10    rate = 8mbit = ceil 
    class 1:1    rate = 256 = ceil
      class 1:2    rate = 192, ceil = 256
      class 1:3    rate = 64, ceil = 256
    class ....

Stef

-- 

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

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