[ 1764.284877] br0: port 1(dummy0) entered blocking state
[ 1764.284950] br0: port 1(dummy0) entered disabled state
[ 1764.285018] dummy0: entered allmulticast mode
[ 1764.285105] dummy0: entered promiscuous mode
[ 1764.287932] br0: port 1(dummy0) entered blocking state
[ 1764.287962] br0: port 1(dummy0) entered forwarding state
[ 1764.484265] dummy0: left allmulticast mode
[ 1764.484332] dummy0: left promiscuous mode
[ 1764.484429] br0: port 1(dummy0) entered disabled state