OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-22ecc4-0): addr:c6:3d:90:91:92:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b66eb3-0): addr:e2:9c:b6:cd:17:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-473cc8-0): addr:da:6a:eb:06:21:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(ovn-c21576-0): addr:de:15:af:15:f5:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(ovn-40c64e-0): addr:3e:fa:8e:13:1a:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-br-int-to): addr:2a:7c:b9:d9:f6:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:4b:b7:15:60:f9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
