[ 1838.048028] br0: port 1(dummy0) entered blocking state
[ 1838.048108] br0: port 1(dummy0) entered disabled state
[ 1838.048175] dummy0: entered allmulticast mode
[ 1838.048275] dummy0: entered promiscuous mode
[ 1838.051920] br0: port 1(dummy0) entered blocking state
[ 1838.051952] br0: port 1(dummy0) entered forwarding state
[ 1838.303946] dummy0: left allmulticast mode
[ 1838.303985] dummy0: left promiscuous mode
[ 1838.304042] br0: port 1(dummy0) entered disabled state