[ 2048.319847] br0: port 1(dummy0) entered blocking state
[ 2048.319932] br0: port 1(dummy0) entered disabled state
[ 2048.319999] dummy0: entered allmulticast mode
[ 2048.320082] dummy0: entered promiscuous mode
[ 2048.323560] br0: port 1(dummy0) entered blocking state
[ 2048.323591] br0: port 1(dummy0) entered forwarding state
[ 2048.582103] dummy0: left allmulticast mode
[ 2048.582140] dummy0: left promiscuous mode
[ 2048.582172] br0: port 1(dummy0) entered disabled state