[LARTC] QoS - Ping problem

From: Nataniel Klug <nata@cnett.com.br>
To: lartc@vger.kernel.org
Subject: [LARTC] QoS - Ping problem
Date: Wed, 05 Apr 2006 18:30:46 +0000	[thread overview]
Message-ID: <44340CD6.1030907@cnett.com.br> (raw)

    Hello all,

    I have set my QoS solution and now I am facing a little problem... 
When I ping to my server it has some lost packages:

Estatísticas do Ping para 172.30.0.1:
Pacotes: SENDED = 1029, RETURNED = 880, LOST = 149 (14% de perda),
Aproximar um número redondo de vezes em milissegundos:
Mínimo = 0ms, Máximo = 686ms, Média = 105ms


    If I disable my QoS ping stats to be ok. I even have tryed to make a 
filter for ICMP protocol (using u32 as it is writen into LARTC how-to) 
but it did not work. How can I solve this problem?

------------------------------------------------------------------------
#!/bin/sh
#------
# Script de QoS Cyber Nett
#------
# Nataniel Klug
# suporte@cnett.com.br
#------

TC="/sbin/tc"
IPT="/usr/local/sbin/iptables"

$IPT -t mangle -X
$IPT -t mangle -F

DL="eth1"

#------
# Apagando regras antigas de QoS
#------
$TC qdisc del dev $DL root    2> /dev/null > /dev/null
$TC qdisc del dev $DL ingress 2> /dev/null > /dev/null

#------
# Regras para a placa eth1
#------
$TC qdisc add dev $DL root handle 1: htb default 50

CLASS="/sbin/tc class add dev $DL parent"
$CLASS 1: classid 1:1 htb rate 3072Kbit
$CLASS 1:1 classid 1:10 htb rate 1024Kbit ceil 1024Kbit
$CLASS 1:1 classid 1:20 htb rate 1536Kbit ceil 2560Kbit
$CLASS 1:1 classid 1:30 htb rate 512Kbit ceil 1024Kbit
$CLASS 1:1 classid 1:40 htb rate 512Kbit ceil 1024Kbit
$CLASS 1:1 classid 1:50 htb rate 512Kbit ceil 1024Kbit

QDISC="/sbin/tc qdisc add dev $DL parent"
$QDISC 1:10 handle 10: sfq perturb 10
$QDISC 1:20 handle 20: sfq perturb 10
$QDISC 1:30 handle 30: sfq perturb 10
$QDISC 1:40 handle 40: sfq perturb 10
$QDISC 1:50 handle 50: sfq perturb 10

FILTER="/sbin/tc filter add dev $DL parent 1:0 protocol ip prio 1 u32"

$FILTER match ip sport 22 0xffff flowid 1:10
$FILTER match ip sport 23 0xffff flowid 1:10
$FILTER match ip sport 2202 0xffff flowid 1:10

$FILTER match ip sport 80 0xffff flowid 1:20
$FILTER match ip sport 443 0xffff flowid 1:20
$FILTER match ip sport 3128 0xffff flowid 1:20

$FILTER match ip sport 53 0xffff flowid 1:30
$FILTER match ip sport 25 0xffff flowid 1:30
$FILTER match ip sport 110 0xffff flowid 1:30

$FILTER match ip sport 21 0xffff flowid 1:40

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