OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7ec8bf-0): addr:52:2d:fa:4a:f8:75
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-71aaf7-0): addr:ca:45:62:38:24:e9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-59a8b9-0): addr:3a:1e:4a:76:5d:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:62:06:ee:70:70:b0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
