frame_sync_model/netdelay.sh at master · xingshuo/frame_sync_model · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
#!/bin/bash

:<<annotation
sh netdelay.sh add #add qdisc
sh netdelay.sh chg [延迟] [延迟波动] [丢包率]
sh netdelay.sh del  #del qdisc
annotation


DEV='lo'

case "$1" in
    add)
        sudo tc qdisc add dev $DEV root netem delay 1ms
        tc qdisc show
        ;;
    del)
        sudo tc qdisc del dev $DEV root netem
        ;;
    chg)
        if [ $# -eq 1 ] ;then
            sudo tc qdisc change dev $DEV root netem delay 100ms
        elif [ $# -eq 2 ] ;then
            sudo tc qdisc change dev $DEV root netem delay $2ms
        elif [ $# -eq 3 ] ;then
            sudo tc qdisc change dev $DEV root netem delay $2ms $3ms
        elif [ $# -ge 4 ] ;then
            sudo tc qdisc change dev $DEV root netem delay $2ms $3ms loss $4%
        fi
        tc qdisc show
        ;;
    *)
        echo "please see the annotation in file netdelay.sh"
esac