[ 1777.724752] br0: port 1(dummy0) entered blocking state
[ 1777.724798] br0: port 1(dummy0) entered disabled state
[ 1777.724834] dummy0: entered allmulticast mode
[ 1777.724888] dummy0: entered promiscuous mode
[ 1777.728554] br0: port 1(dummy0) entered blocking state
[ 1777.728619] br0: port 1(dummy0) entered forwarding state
[ 1778.002131] dummy0: left allmulticast mode
[ 1778.002167] dummy0: left promiscuous mode
[ 1778.002224] br0: port 1(dummy0) entered disabled state