[ 2000.270010][T16323] br0: port 1(dummy0) entered blocking state
[ 2000.270196][T16323] br0: port 1(dummy0) entered disabled state
[ 2000.270353][T16323] dummy0: entered allmulticast mode
[ 2000.271199][T16323] dummy0: entered promiscuous mode
[ 2000.295382][T16324] br0: port 1(dummy0) entered blocking state
[ 2000.295571][T16324] br0: port 1(dummy0) entered forwarding state
[ 2002.231241][   T68] dummy0: left allmulticast mode
[ 2002.231438][   T68] dummy0: left promiscuous mode
[ 2002.231677][   T68] br0: port 1(dummy0) entered disabled state