[ 1716.449727] br0: port 1(dummy0) entered blocking state
[ 1716.449775] br0: port 1(dummy0) entered disabled state
[ 1716.449809] dummy0: entered allmulticast mode
[ 1716.449860] dummy0: entered promiscuous mode
[ 1716.453117] br0: port 1(dummy0) entered blocking state
[ 1716.453182] br0: port 1(dummy0) entered forwarding state
[ 1716.675343] dummy0: left allmulticast mode
[ 1716.675379] dummy0: left promiscuous mode
[ 1716.675419] br0: port 1(dummy0) entered disabled state