linux 从系统级控制网卡 网速

控制网卡速率命令是 tc 
wondershaper  限制网络接口的上传和下载速度。它基于 tc（Traffic Control）封装，提供了更友好的命令行接口，非常适合快速设置带宽限制


yum install wondershaper

控制指定网卡

# 查网卡设备
[root@tx ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 32:92:b7:00:03:86 brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc cbq state DOWN mode DEFAULT group default qlen 1000
    link/ether 02:42:01:7c:c6:b2 brd ff:ff:ff:ff:ff:ff
    
   
[root@tx ~]# wondershaper 
Wonder Shaper 1.2.1

Usage: /usr/sbin/wondershaper [device] clean|[upload speed in Kb/s] [download speed in Kb/s]
Example: /usr/sbin/wondershaper eth0 20 500

## 设置上行 下行是 1024 mbps
 wondershaper  docker0  1024 1024

# 清除 网卡速率限制
 wondershaper  docker0  clean

最新1.4.1的版本 更方便

https://github.com/magnific0/wondershaper

/wondershaper  -a eth0  -c
/wondershaper  -a eth0  -d 13000 -u 13000

上传 下载 1Mb/s 左右