[ 1926.859400] br0: port 1(dummy0) entered blocking state
[ 1926.859472] br0: port 1(dummy0) entered disabled state
[ 1926.859537] dummy0: entered allmulticast mode
[ 1926.859638] dummy0: entered promiscuous mode
[ 1926.863267] br0: port 1(dummy0) entered blocking state
[ 1926.863300] br0: port 1(dummy0) entered forwarding state
[ 1927.156601] dummy0: left allmulticast mode
[ 1927.156640] dummy0: left promiscuous mode
[ 1927.156672] br0: port 1(dummy0) entered disabled state