[ 1797.925188] br0: port 1(dummy0) entered blocking state
[ 1797.925245] br0: port 1(dummy0) entered disabled state
[ 1797.925294] dummy0: entered allmulticast mode
[ 1797.925357] dummy0: entered promiscuous mode
[ 1797.929087] br0: port 1(dummy0) entered blocking state
[ 1797.929124] br0: port 1(dummy0) entered forwarding state
[ 1798.226474] dummy0: left allmulticast mode
[ 1798.226519] dummy0: left promiscuous mode
[ 1798.226555] br0: port 1(dummy0) entered disabled state