[ 1661.612253] br0: port 1(dummy0) entered blocking state
[ 1661.612295] br0: port 1(dummy0) entered disabled state
[ 1661.612331] dummy0: entered allmulticast mode
[ 1661.612386] dummy0: entered promiscuous mode
[ 1661.615858] br0: port 1(dummy0) entered blocking state
[ 1661.615926] br0: port 1(dummy0) entered forwarding state
[ 1661.832487] dummy0: left allmulticast mode
[ 1661.832556] dummy0: left promiscuous mode
[ 1661.832656] br0: port 1(dummy0) entered disabled state