[ 1780.583922] br0: port 1(dummy0) entered blocking state
[ 1780.583994] br0: port 1(dummy0) entered disabled state
[ 1780.584062] dummy0: entered allmulticast mode
[ 1780.584150] dummy0: entered promiscuous mode
[ 1780.587477] br0: port 1(dummy0) entered blocking state
[ 1780.587508] br0: port 1(dummy0) entered forwarding state
[ 1780.800754] dummy0: left allmulticast mode
[ 1780.800794] dummy0: left promiscuous mode
[ 1780.800823] br0: port 1(dummy0) entered disabled state