[ 1884.131114] br0: port 1(dummy0) entered blocking state
[ 1884.131178] br0: port 1(dummy0) entered disabled state
[ 1884.131214] dummy0: entered allmulticast mode
[ 1884.131266] dummy0: entered promiscuous mode
[ 1884.134736] br0: port 1(dummy0) entered blocking state
[ 1884.134806] br0: port 1(dummy0) entered forwarding state
[ 1884.367654] dummy0: left allmulticast mode
[ 1884.367708] dummy0: left promiscuous mode
[ 1884.367744] br0: port 1(dummy0) entered disabled state