OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:88:e2:f1:48:fc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:3e:09:4c:63:27:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:82:f8:68:37:87:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f7:05:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f7:05:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
