[ 1993.306482][T13576] br0: port 1(dummy0) entered blocking state
[ 1993.306685][T13576] br0: port 1(dummy0) entered disabled state
[ 1993.306859][T13576] dummy0: entered allmulticast mode
[ 1993.307739][T13576] dummy0: entered promiscuous mode
[ 1993.335957][T13577] br0: port 1(dummy0) entered blocking state
[ 1993.336242][T13577] br0: port 1(dummy0) entered forwarding state
[ 1995.344342][   T12] dummy0: left allmulticast mode
[ 1995.345393][   T12] dummy0: left promiscuous mode
[ 1995.345712][   T12] br0: port 1(dummy0) entered disabled state