[ 2030.894982][T12660] br0: port 1(dummy0) entered blocking state
[ 2030.895172][T12660] br0: port 1(dummy0) entered disabled state
[ 2030.895335][T12660] dummy0: entered allmulticast mode
[ 2030.896780][T12660] dummy0: entered promiscuous mode
[ 2030.924106][T12661] br0: port 1(dummy0) entered blocking state
[ 2030.924408][T12661] br0: port 1(dummy0) entered forwarding state
[ 2032.946012][   T12] dummy0: left allmulticast mode
[ 2032.946976][   T12] dummy0: left promiscuous mode
[ 2032.947241][   T12] br0: port 1(dummy0) entered disabled state