[ 1894.416278] br0: port 1(dummy0) entered blocking state
[ 1894.416357] br0: port 1(dummy0) entered disabled state
[ 1894.416427] dummy0: entered allmulticast mode
[ 1894.416513] dummy0: entered promiscuous mode
[ 1894.420327] br0: port 1(dummy0) entered blocking state
[ 1894.420362] br0: port 1(dummy0) entered forwarding state
[ 1894.687048] dummy0: left allmulticast mode
[ 1894.687115] dummy0: left promiscuous mode
[ 1894.687176] br0: port 1(dummy0) entered disabled state