[ 1781.665286] br0: port 1(dummy0) entered blocking state
[ 1781.665331] br0: port 1(dummy0) entered disabled state
[ 1781.665368] dummy0: entered allmulticast mode
[ 1781.665421] dummy0: entered promiscuous mode
[ 1781.669050] br0: port 1(dummy0) entered blocking state
[ 1781.669085] br0: port 1(dummy0) entered forwarding state
[ 1781.938765] dummy0: left allmulticast mode
[ 1781.938804] dummy0: left promiscuous mode
[ 1781.938834] br0: port 1(dummy0) entered disabled state