[ 1745.790513] br0: port 1(dummy0) entered blocking state
[ 1745.790555] br0: port 1(dummy0) entered disabled state
[ 1745.790585] dummy0: entered allmulticast mode
[ 1745.790633] dummy0: entered promiscuous mode
[ 1745.793180] br0: port 1(dummy0) entered blocking state
[ 1745.793240] br0: port 1(dummy0) entered forwarding state
[ 1745.977896] dummy0: left allmulticast mode
[ 1745.977956] dummy0: left promiscuous mode
[ 1745.978019] br0: port 1(dummy0) entered disabled state