root@network:/home/s1# ovs-ofctl dump-flows br-tun
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=33.236s, table=0, n_packets=0, n_bytes=0, idle_age=33, priority=1,in_port=1 actions=resubmit(,2) //从H1进来的traffic，到table 2
cookie=0x0, duration=32.131s, table=0, n_packets=0, n_bytes=0, idle_age=32, priority=1,in_port=2 actions=resubmit(,3) //从GRE端口进来的traffic，到table 3
cookie=0x0, duration=33.178s, table=0, n_packets=6, n_bytes=480, idle_age=24, priority=0 actions=drop
cookie=0x0, duration=33.121s, table=2, n_packets=0, n_bytes=0, idle_age=33, priority=0,dl_dst=00:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,20) //目的地址为单播地址，到table 20
cookie=0x0, duration=33.066s, table=2, n_packets=0, n_bytes=0, idle_age=33, priority=0,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,22) //目的地址为组播（包括广播）地址，到table 22
cookie=0x0, duration=30.614s, table=3, n_packets=0, n_bytes=0, idle_age=30, priority=1,tun_id=0x1 actions=mod_vlan_vid:1,resubmit(,10) //Tunnel 1的traffic，修改VLAN ID 为 1， 再到 table 10
cookie=0x0, duration=29.291s, table=3, n_packets=0, n_bytes=0, idle_age=29, priority=1,tun_id=0x2 actions=mod_vlan_vid:3,resubmit(,10) //Tunnel 2的traffic，修改VLAN ID 为 2， 再到 table 10
cookie=0x0, duration=30.241s, table=3, n_packets=0, n_bytes=0, idle_age=30, priority=1,tun_id=0x3 actions=mod_vlan_vid:2,resubmit(,10) //Tunnel 3的traffic，修改VLAN ID 为 3， 再到 table 10
cookie=0x0, duration=33.001s, table=3, n_packets=0, n_bytes=0, idle_age=33, priority=0 actions=drop
cookie=0x0, duration=32.932s, table=4, n_packets=0, n_bytes=0, idle_age=32, priority=0 actions=drop
cookie=0x0, duration=32.874s, table=10, n_packets=0, n_bytes=0, idle_age=32, priority=1 actions=learn(table=20,hard_timeout=300,priority=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:0->NXM_OF_VLAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:NXM_OF_IN_PORT[]),output:1 //学习一条新的规则添加到table 20，发到端口1，进入br-int
cookie=0x0, duration=32.815s, table=20, n_packets=0, n_bytes=0, idle_age=32, priority=0 actions=resubmit(,22) //到table 22
cookie=0x0, duration=29.35s, table=22, n_packets=0, n_bytes=0, idle_age=29, dl_vlan=3 actions=strip_vlan,set_tunnel:0x2,output:2
cookie=0x0, duration=30.293s, table=22, n_packets=0, n_bytes=0, idle_age=30, dl_vlan=2 actions=strip_vlan,set_tunnel:0x3,output:2
cookie=0x0, duration=30.682s, table=22, n_packets=0, n_bytes=0, idle_age=30, dl_vlan=1 actions=strip_vlan,set_tunnel:0x1,output:2 //以上三条rule，根据目的VLAN ID，修改Tunnel ID，并去掉VLAN ID，发到GRE端口，经过GRE Tunnel到compute node
cookie=0x0, duration=32.752s, table=22, n_packets=0, n_bytes=0, idle_age=32, priority=0 actions=drop
