[ 1759.371520] br0: port 1(dummy0) entered blocking state
[ 1759.371554] br0: port 1(dummy0) entered disabled state
[ 1759.371636] dummy0: entered allmulticast mode
[ 1759.371706] dummy0: entered promiscuous mode
[ 1759.375275] br0: port 1(dummy0) entered blocking state
[ 1759.375300] br0: port 1(dummy0) entered forwarding state
[ 1759.644836] dummy0: left allmulticast mode
[ 1759.644864] dummy0: left promiscuous mode
[ 1759.644888] br0: port 1(dummy0) entered disabled state