[ 1655.314135] br0: port 1(dummy0) entered blocking state
[ 1655.314177] br0: port 1(dummy0) entered disabled state
[ 1655.314215] dummy0: entered allmulticast mode
[ 1655.314266] dummy0: entered promiscuous mode
[ 1655.317647] br0: port 1(dummy0) entered blocking state
[ 1655.317680] br0: port 1(dummy0) entered forwarding state
[ 1655.530410] dummy0: left allmulticast mode
[ 1655.530442] dummy0: left promiscuous mode
[ 1655.530475] br0: port 1(dummy0) entered disabled state