[ 1816.387566] br0: port 1(dummy0) entered blocking state
[ 1816.387619] br0: port 1(dummy0) entered disabled state
[ 1816.387659] dummy0: entered allmulticast mode
[ 1816.387724] dummy0: entered promiscuous mode
[ 1816.390776] br0: port 1(dummy0) entered blocking state
[ 1816.390852] br0: port 1(dummy0) entered forwarding state
[ 1816.608926] dummy0: left allmulticast mode
[ 1816.608973] dummy0: left promiscuous mode
[ 1816.609020] br0: port 1(dummy0) entered disabled state