[ 1745.474194] br0: port 1(dummy0) entered blocking state
[ 1745.474271] br0: port 1(dummy0) entered disabled state
[ 1745.474354] dummy0: entered allmulticast mode
[ 1745.474437] dummy0: entered promiscuous mode
[ 1745.478032] br0: port 1(dummy0) entered blocking state
[ 1745.478064] br0: port 1(dummy0) entered forwarding state
[ 1745.753091] dummy0: left allmulticast mode
[ 1745.753129] dummy0: left promiscuous mode
[ 1745.753161] br0: port 1(dummy0) entered disabled state