[ 1651.490489] br0: port 1(dummy0) entered blocking state
[ 1651.490528] br0: port 1(dummy0) entered disabled state
[ 1651.490560] dummy0: entered allmulticast mode
[ 1651.490623] dummy0: entered promiscuous mode
[ 1651.493128] br0: port 1(dummy0) entered blocking state
[ 1651.493159] br0: port 1(dummy0) entered forwarding state
[ 1651.680120] dummy0: left allmulticast mode
[ 1651.680152] dummy0: left promiscuous mode
[ 1651.680178] br0: port 1(dummy0) entered disabled state