[ 1764.802332] br0: port 1(dummy0) entered blocking state
[ 1764.802406] br0: port 1(dummy0) entered disabled state
[ 1764.802486] dummy0: entered allmulticast mode
[ 1764.802566] dummy0: entered promiscuous mode
[ 1764.806060] br0: port 1(dummy0) entered blocking state
[ 1764.806093] br0: port 1(dummy0) entered forwarding state
[ 1765.070152] dummy0: left allmulticast mode
[ 1765.070221] dummy0: left promiscuous mode
[ 1765.070280] br0: port 1(dummy0) entered disabled state