TCP 流控

tc qdisc add dev mgbe3_0 root handle 0: htb default 30
tc class add dev mgbe3_0 parent 8001: classid 8001:1 htb rate 1000mbit
tc filter add dev mgbe3_0 protocol ip parent 8001: prio 1 u32 match ip dst 172.20.1.100 flowid 8001:1