[ 1827.510421] br0: port 1(dummy0) entered blocking state
[ 1827.510462] br0: port 1(dummy0) entered disabled state
[ 1827.510501] dummy0: entered allmulticast mode
[ 1827.510550] dummy0: entered promiscuous mode
[ 1827.514110] br0: port 1(dummy0) entered blocking state
[ 1827.514153] br0: port 1(dummy0) entered forwarding state
[ 1827.773901] dummy0: left allmulticast mode
[ 1827.773935] dummy0: left promiscuous mode
[ 1827.773970] br0: port 1(dummy0) entered disabled state