tc qos 限速上传/下载

#!/bin/sh

qos_stop() {
    tc qdisc del dev ifb0 ingress
    tc qdisc del dev ifb0 root
    tc qdisc del dev br-lan ingress
    tc qdisc del dev br-lan root
}

qos_start() {
    #init
    ifconfig ifb0 up
    tc qdisc add dev br-lan root handle 1: htb r2q 1
    tc qdisc add dev br-lan ingress
    tc filter add dev br-lan parent ffff: protocol ip u32 match u32 0 0 action mirred egress redirect dev ifb0
    tc qdisc add dev ifb0 root handle 1: htb r2q 1

    # 限速 下载500K, id 1:1
    tc class add dev br-lan parent 1: classid 1:1 htb rate 4000kbit ceil 4000kbit prio 2
    tc filter add dev br-lan parent 1: protocol ip u32 match ip dst 192.168.2.176 flowid 1:1

    # 限速 上传500K, id 1:4
    tc class add dev ifb0 parent 1:1 classid 1:4 htb rate 4000kbit
    tc filter add dev ifb0 protocol ip parent 1:0 prio 2 u32 match ip src 192.168.2.176 flowid 1:4
}