[ 2440.685429][T29275] br0: port 1(dummy0) entered blocking state
[ 2440.685786][T29275] br0: port 1(dummy0) entered disabled state
[ 2440.686132][T29275] dummy0: entered allmulticast mode
[ 2440.687218][T29275] dummy0: entered promiscuous mode
[ 2440.719869][T29276] br0: port 1(dummy0) entered blocking state
[ 2440.720778][T29276] br0: port 1(dummy0) entered forwarding state
[ 2443.322301][   T64] dummy0: left allmulticast mode
[ 2443.322625][   T64] dummy0: left promiscuous mode
[ 2443.323004][   T64] br0: port 1(dummy0) entered disabled state