[ 1786.843936] br0: port 1(dummy0) entered blocking state
[ 1786.843979] br0: port 1(dummy0) entered disabled state
[ 1786.844016] dummy0: entered allmulticast mode
[ 1786.844071] dummy0: entered promiscuous mode
[ 1786.847700] br0: port 1(dummy0) entered blocking state
[ 1786.847764] br0: port 1(dummy0) entered forwarding state
[ 1787.121330] dummy0: left allmulticast mode
[ 1787.121366] dummy0: left promiscuous mode
[ 1787.121425] br0: port 1(dummy0) entered disabled state