wondershaper是一款在Linux内核下基于TC工具的对整块网卡的限度工具，虽然有很久没有更新了，但是测试老版本在Centos6.5上依然可以使用。
在Linux/Centos下
首先下载wondershaper的rpm安装包：wondershaper-1.1a-7.noarch.rpm
安装wondershaper：
[root@localhost ~]# rpm -ivh wondershaper-1.1a-7.noarch.rpm
限速命令：
第一个参数为网卡接口名，后面两个数字分别代表下行和上行的速度（单位Kb）
[root@localhost ~]# wondershaper eth0 5000 500
取消限速：
[root@localhost ~]# wondershaper clear eth0
在Linux/debian下用wondershaper限速
Their suggestion:
apt-get install wondershaper
wondershaper - An easy tool to limit bandwidth of a particular interface.
$ sudo wondershaper {interface} {down} {up}
the {down} and {up} are bandwidth in kpbs
So for example if you want to limit the bandwidth of interface eth1 to 256kbps uplink and 128kbps downlink,
$ sudo wondershaper eth1 256 128
To clear the limit,
$ sudo wondershaper clear eth1