我想限制 Linux box 的传入（下载）速度。
配置的盒子和流量源（HTTP服务器）都连接在同一个交换机上，如果没有配置整形，下载速度为30MBps
我根据http://lartc.org/lartc.html使用 tc
########## downlink #############
# slow downloads down to somewhat less than the real speed to prevent
# queuing at our ISP. Tune to see how high you can set it.
# ISPs tend to have *huge* queues to make sure big downloads are fast
#
# attach ingress policer:
/sbin/tc qdisc add dev $DEV handle ffff: ingress
# filter *everything* to it (0.0.0.0/0), drop everything that's
# coming in too fast: …