Linux TC 常用命令

发表于 | 分类于 | 阅读次数

Bandwith Limit to 12Mbps

1
2
3
# tc qdisc add dev ens4 handle 1: root htb default 11
# tc class add dev ens4 parent 1: classid 1:1 htb rate 1000Mbps
# tc class add dev ens4 parent 1:1 classid 1:11 htb rate 12Mbit

Latency with 300ms and 3% Loss (Be careful about the limit argument)

1
# tc qdisc add dev ens4 root handle 1:0 netem limit 102343600 delay 300ms 0ms loss 3%

Bandwith Limit + Latency + Loss

1
2
3
4
# tc qdisc add dev ens4 handle 1: root htb default 11
# tc class add dev ens4 parent 1: classid 1:1 htb rate 1000Mbps
# tc class add dev ens4 parent 1:1 classid 1:11 htb rate 12Mbit
# tc qdisc add dev ens4 parent 1:11 handle 10: netem limit 102343600 delay 300ms loss 3%

Metrics

1
# tc -s qdisc ls dev ens4

更多 TC 内部机制细节，请参考 http://perthcharles.github.io/2015/06/12/tc-tutorial/