[ 1654.325503] br0: port 1(dummy0) entered blocking state
[ 1654.325570] br0: port 1(dummy0) entered disabled state
[ 1654.325629] dummy0: entered allmulticast mode
[ 1654.325706] dummy0: entered promiscuous mode
[ 1654.328447] br0: port 1(dummy0) entered blocking state
[ 1654.328468] br0: port 1(dummy0) entered forwarding state
[ 1654.517507] dummy0: left allmulticast mode
[ 1654.517527] dummy0: left promiscuous mode
[ 1654.517545] br0: port 1(dummy0) entered disabled state