[ 1893.787782][T15829] br0: port 1(dummy0) entered blocking state
[ 1893.788017][T15829] br0: port 1(dummy0) entered disabled state
[ 1893.788229][T15829] dummy0: entered allmulticast mode
[ 1893.789615][T15829] dummy0: entered promiscuous mode
[ 1893.811003][T15830] br0: port 1(dummy0) entered blocking state
[ 1893.811612][T15830] br0: port 1(dummy0) entered forwarding state
[ 1895.731959][   T12] dummy0: left allmulticast mode
[ 1895.732169][   T12] dummy0: left promiscuous mode
[ 1895.732424][   T12] br0: port 1(dummy0) entered disabled state