[ 1596.063021] br0: port 1(dummy0) entered blocking state
[ 1596.063079] br0: port 1(dummy0) entered disabled state
[ 1596.063115] dummy0: entered allmulticast mode
[ 1596.063178] dummy0: entered promiscuous mode
[ 1596.066004] br0: port 1(dummy0) entered blocking state
[ 1596.066041] br0: port 1(dummy0) entered forwarding state
[ 1596.299466] dummy0: left allmulticast mode
[ 1596.299562] dummy0: left promiscuous mode
[ 1596.299627] br0: port 1(dummy0) entered disabled state