[ 1762.025906] br0: port 1(dummy0) entered blocking state
[ 1762.025947] br0: port 1(dummy0) entered disabled state
[ 1762.025984] dummy0: entered allmulticast mode
[ 1762.026039] dummy0: entered promiscuous mode
[ 1762.029617] br0: port 1(dummy0) entered blocking state
[ 1762.029653] br0: port 1(dummy0) entered forwarding state
[ 1762.282874] dummy0: left allmulticast mode
[ 1762.282912] dummy0: left promiscuous mode
[ 1762.282941] br0: port 1(dummy0) entered disabled state