[ 1794.519656] br0: port 1(dummy0) entered blocking state
[ 1794.519693] br0: port 1(dummy0) entered disabled state
[ 1794.519730] dummy0: entered allmulticast mode
[ 1794.519782] dummy0: entered promiscuous mode
[ 1794.523396] br0: port 1(dummy0) entered blocking state
[ 1794.523436] br0: port 1(dummy0) entered forwarding state
[ 1794.789294] dummy0: left allmulticast mode
[ 1794.789327] dummy0: left promiscuous mode
[ 1794.789369] br0: port 1(dummy0) entered disabled state