[ 1760.938483] br0: port 1(dummy0) entered blocking state
[ 1760.938525] br0: port 1(dummy0) entered disabled state
[ 1760.938562] dummy0: entered allmulticast mode
[ 1760.938615] dummy0: entered promiscuous mode
[ 1760.942216] br0: port 1(dummy0) entered blocking state
[ 1760.942250] br0: port 1(dummy0) entered forwarding state
[ 1761.211600] dummy0: left allmulticast mode
[ 1761.211673] dummy0: left promiscuous mode
[ 1761.211738] br0: port 1(dummy0) entered disabled state