OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6a14c3-0): addr:aa:37:b3:2d:29:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a8e4d1-0): addr:4e:b7:21:12:4b:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-e22de0-0): addr:5e:43:41:4e:2b:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:a3:f3:7f:07:fa
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
