[ 1684.301111] br0: port 1(dummy0) entered blocking state
[ 1684.301148] br0: port 1(dummy0) entered disabled state
[ 1684.301189] dummy0: entered allmulticast mode
[ 1684.301238] dummy0: entered promiscuous mode
[ 1684.304648] br0: port 1(dummy0) entered blocking state
[ 1684.304680] br0: port 1(dummy0) entered forwarding state
[ 1684.523647] dummy0: left allmulticast mode
[ 1684.523680] dummy0: left promiscuous mode
[ 1684.523709] br0: port 1(dummy0) entered disabled state