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

[Stef Coene <stef.coene@docum.org>]

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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