Laboratorio 14/10/2008

[Andrea Detti < >]

Testo di riferimento per Linux Trafic Control:
http://lartc.org/howto/

Manuali
http://linux.die.net/man/8/tc
http://linux.die.net/man/8/tc-htb
http://linux.die.net/man/8/tc-prio
http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm


Ciao,

Andrea

-- 
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 Andrea Detti, PhD
 Dip. Ingegneria Elettronica
 Universita' di Roma "Tor Vergata" 
 Via del Politecnico 1, 00133 Roma, Italy
 Tel.: +39-06-7259-7285
 Fax : +39-06-7259-7435
 email: 

 
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vstart PC1 --eth0=A -M 64
vstart PC2 --eth0=A -M 64
vstart PC3 --eth0=A -M 64
vstart PC4 --eth0=A -M 64


PC1:~# ifconfig eth0 192.168.0.1
PC2:~# ifconfig eth0 192.168.0.2
PC3:~# ifconfig eth0 192.168.0.3
PC4:~# ifconfig eth0 192.168.0.4


PC1:~# tc qdisc add dev eth0 root handle 1: htb default 1
PC1:~# tc class add dev eth0 parent 1: classid 1:1 htb rate 1Mbit ceil 1Mbit
PC1:~# tc qdisc add dev eth0 parent 1:1 handle 2: prio bands 3
PC1:~# tc filter add dev eth0 parent 2: protocol ip prio 1 u32 match ip tos 
48 0xff flowid 2:1
PC1:~# tc filter add dev eth0 parent 2: protocol ip prio 1 u32 match ip tos 
160 0xff flowid 2:2
PC1:~# tc filter add dev eth0 parent 2: protocol ip prio 1 u32 match ip tos 0 
0xff flowid 2:3

--- Debug Qdisc ---

PC1:~# tc -s filter show dev eth0 parent 2:
PC1:~# tc -s class show dev eth0
PC1:~# tc -s qdisc show dev eth0
PC1:~# ping 192.168.0.2 -Q 48
PC1:~# tc -s class show dev eth0

--- Prova iperf (entrare nella cartella di iperf)
PC2:~# ./iperf -s -u -i 1
PC3:~# ./iperf -s -u -i 1
PC4:~# ./iperf -s -u -i 1
PC1:~# ./iperf -c 192.168.0.4 -u -S 48 -b 800k -t 120 &
PC1:~# ./iperf -c 192.168.0.3 -u -S 160 -b 800k -t 120 &
PC1:~# ./iperf -c 192.168.0.2 -u -S 0 -b 800k -t 120 &