Hello!
I have an internet connection of 64kbps garanteed in a channel of 256kbps. On this connection the metropolitan speed is 10Mbps and in the provider's network the speed is 100Mbps. I have a few clients behind my linux box and i want to set up some limitations because some of them are using it irrational.
I am marking the packets with 0 for internet;
0 means unmarked.
1 for metropolitan 2 for provider's network.
Afther the mark i send the packets to the followind classes:
You can test your marking/setup with
tc -s -d class ls dev ethX or
tc -s -d qdisc ls dev ethX.
script for eth0 (eth0 is my local network)
#!/bin/bash tc qdisc del dev eth0 root >/dev/null tc qdisc add dev eth0 root handle 1: htb default 3
tc class add dev eth0 parent 1: classid 1:1 htb rate 64kbit ceil 256kbit burst 15k quantum 1500 # Internet tc class add dev eth0 parent 1: classid 1:2 htb rate 10Mbit burst 15k quantum 1500 # Metropolitan tc class add dev eth0 parent 1: classid 1:3 htb rate 80Mbit burst 15k quantum 1500 # Provider
tc class add dev eth0 parent 1:1 classid 1:100 htb rate 64kbit ceil 256kbit burst 15k tc qdisc add dev eth0 parent 1:100 handle 100: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:100 classid 1:1001 htb rate 4kbit ceil 64kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:1001 handle 1001: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:100 classid 1:1002 htb rate 4kbit ceil 64kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:1002 handle 1002: sfq perturb 5 quantum 1500
...
tc class add dev eth0 parent 1:100 classid 1:1020 htb rate 4kbit ceil 64kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:1020 handle 1020: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:2 classid 1:300 htb rate 5Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:300 handle 300: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:300 classid 1:3001 htb rate 8kbit ceil 256kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:3001 handle 3001: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:300 classid 1:3002 htb rate 8kbit ceil 256kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:3002 handle 3002: sfq perturb 5 quantum 1500
...
tc class add dev eth0 parent 1:300 classid 1:3020 htb rate 5kbit ceil 256kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:3020 handle 3020: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:2 classid 1:500 htb rate 80Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:500 handle 500: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:500 classid 1:5001 htb rate 8kbit ceil 8Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:5001 handle 5001: sfq perturb 5 quantum 1500
tc class add dev eth0 parent 1:500 classid 1:5002 htb rate 8kbit ceil 8Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth0 parent 1:5002 handle 5002: sfq perturb 5 quantum 1500
...
iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.1 -j CLASSIFY --set-class 1:1001 iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.1 -m mark --mark 1 -j CLASSIFY --set-class 1:3001 iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.1 -m mark --mark 2 -j CLASSIFY --set-class 1:5001
iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.2 -j CLASSIFY --set-class 1:1002 iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.2 -m mark --mark 1 -j CLASSIFY --set-class 1:3002 iptables -t mangle -A POSTROUTING -o eth0 -d 10.0.0.2 -m mark --mark 2 -j CLASSIFY --set-class 1:5002 ...
Haven't used CLASSIFY so am unsure if this is OK.
Peturb 5 is a bit low - it causes packet reordering and the default queue length for SFQ is 128 - too long.
In fact if you are going to shape someone to low bandwidth it would be best to further mark and give their interactive traffic priority over their bulk.
###END SCRIPT ETH0###
the script for eth1 (the interface witch goes to provider) is:
#!/bin/bash tc qdisc del dev eth1 root >/dev/null tc qdisc add dev eth1 root handle 1: htb default 4
tc class add dev eth1 parent 1: classid 1:1 htb rate 64kbit ceil 256kbit burst 15k quantum 1500 tc class add dev eth1 parent 1: classid 1:2 htb rate 10Mbit burst 15k quantum 1500 tc class add dev eth1 parent 1: classid 1:3 htb rate 80Mbit burst 15k quantum 1500
tc class add dev eth1 parent 1:1 classid 1:100 htb rate 64kbit ceil 256kbit burst 15k tc qdisc add dev eth1 parent 1:100 handle 100: sfq perturb 5 quantum 1500
tc class add dev eth1 parent 1:100 classid 1:1001 htb rate 4kbit ceil 64kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:1001 handle 1001: sfq perturb 5 quantum 1500 ...
tc class add dev eth1 parent 1:2 classid 1:300 htb rate 5Mbit prio 8 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:300 handle 300: sfq perturb 5 quantum 1500
tc class add dev eth1 parent 1:300 classid 1:3001 htb rate 32kbit ceil 128kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:3001 handle 3001: sfq perturb 5 quantum 1500 tc class add dev eth1 parent 1:300 classid 1:3002 htb rate 32kbit ceil 128kbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:3002 handle 3002: sfq perturb 5 quantum 1500 ...
tc class add dev eth1 parent 1:3 classid 1:500 htb rate 80Mbit prio 8 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:500 handle 500: sfq perturb 5 quantum 1500
tc class add dev eth1 parent 1:500 classid 1:5001 htb rate 128kbit ceil 8Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:5001 handle 5001: sfq perturb 5 quantum 1500 tc class add dev eth1 parent 1:500 classid 1:5002 htb rate 128kbit ceil 8Mbit prio 5 quantum 1500 burst 15k tc qdisc add dev eth1 parent 1:5002 handle 5002: sfq perturb 5 quantum 1500 ...
iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.1 -m mark --mark 0 -j MARK --set-mark 1001 iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.1 -m mark --mark 1 -j MARK --set-mark 3001 iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.1 -m mark --mark 2 -j MARK --set-mark 5001
iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.2 -m mark --mark 0 -j MARK --set-mark 1002 iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.2 -m mark --mark 1 -j MARK --set-mark 3002 iptables -t mangle -A PREROUTING -i eth0 -s 10.0.0.2 -m mark --mark 2 -j MARK --set-mark 5002
You can't match local addresses here if you are doing NAT.
...
tc filter add dev eth1 protocol ip handle 1001 fw flowid 1:1001 tc filter add dev eth1 protocol ip handle 3001 fw flowid 1:3001 tc filter add dev eth1 protocol ip handle 5001 fw flowid 1:5001
tc filter add dev eth1 protocol ip handle 1002 fw flowid 1:1002 tc filter add dev eth1 protocol ip handle 3002 fw flowid 1:3002 tc filter add dev eth1 protocol ip handle 5002 fw flowid 1:5002
#END OF ETH1 SCRIPT#
After i start the scripts all the hosts encounters difficulties in accessing the internet... the web from the internet (class 1:1) are loading verry slow (20-30 seconds); i have ping timeouts... yahoo messenger is connecting in about 20-30 seconds... iti si a mess... I know the bandwidth is verry small but even if there are 8 users online the bandwidth should divide and work much faster at least for web... I think the script has problems in the part with the burst of 15k... can somebody tell me where is going wrong?
Please help, Claudiu.
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