Reference Links: https://www.cnblogs.com/zqyanywn/p/10501590.html
1. FDB / Show Bridge List corresponding to the specified information until each of the MAC and the VLAN bridge, and including the port number of the learned MAC address information as well as the entry age, seconds
[root@ostack1 ~]# ovs-appctl fdb/show br-eth1 port VLAN MAC Age 1 4 fa:16:3e:e2:af:d7 225 1 200 fa:16:3e:12:d2:92 145 2 0 fa:16:3e:ef:95:a9 89 2 0 fa:16:3e:0e:74:20 39 1 256 fa:16:3e:0a:2c:4a 8 1 256 fa:16:3e:d6:4d:7d 8 1 256 FA: 16 : 3e: 20 : Cf: Bf 8 1 256 FA: 16 : 3e: 7a: 1c: 9c 8 1 256 FA: 16 : 3e: FF: 78 : 24 8 1 256 FA: 16 : 3e: ec View : 54 : 5f 7 1 256 FA: 16 : 3e: 2e: FF: F5 7 1 256 FA: 16 : 3e: F4: the fb: 9d 7 2 256 0c: C6: the cc: F9: 07 : 76 1 1 256 fa: 16 : 3e: 90 : A0: 11 1 3 256 52 : 54 : 00 : B8: TLC: 37 0 1 256 FA: 16 : 3e: E2: of: d7 0
2. FDB / the flush [ Bridge ]
Clear the MAC learning table of the bridge, the bridge is not specified apply to all bridges
3. Bridge / dump-Flows Bridge to list all the streams on the bridge, including those (eg ovs-ofctl dump-flows) in the other default command hidden stream flow mechanisms such as policy-band management settings are not allowed modify and coverage, so the controller who they are hidden.
[root@ostack1 ~]# ovs-appctl bridge/dump-flows br-eth3 duration=306s, n_packets=52, n_bytes=2336, priority=2,in_port=2,actions=resubmit(,1) duration=325s, n_packets=329, n_bytes=22978, priority=0,actions=NORMAL duration=306s, n_packets=5574, n_bytes=387046, priority=1,actions=resubmit(,3) table_id=1, duration=306s, n_packets=51, n_bytes=2294, priority=0,actions=resubmit(,2) table_id=2, duration=305s, n_packets=51, n_bytes=2294, priority=2,in_port=2,actions=drop table_id=3, duration=305s, n_packets=5563, n_bytes=386275, priority=1,actions=NORMAL table_id=254, duration=10276157s, n_packets=0, n_bytes=0, priority=2,recirc_id=0,actions=drop table_id=254, duration=10276157s, n_packets=0, n_bytes=0, priority=0,reg0=0x1,actions=controller(reason=no_match) table_id=254, duration=10276157s, n_packets=31, n_bytes=8887, priority=0,reg0=0x2,actions=drop table_id=254, duration=10276157s, n_packets=0, n_bytes=0, priority=0,reg0=0x3,actions=drop