[ 1613.286906] br0: port 1(dummy0) entered blocking state
[ 1613.286988] br0: port 1(dummy0) entered disabled state
[ 1613.287063] dummy0: entered allmulticast mode
[ 1613.287150] dummy0: entered promiscuous mode
[ 1613.290077] br0: port 1(dummy0) entered blocking state
[ 1613.290112] br0: port 1(dummy0) entered forwarding state
[ 1613.486843] dummy0: left allmulticast mode
[ 1613.486888] dummy0: left promiscuous mode
[ 1613.486917] br0: port 1(dummy0) entered disabled state