[ 1918.079110] br0: port 1(dummy0) entered blocking state
[ 1918.079182] br0: port 1(dummy0) entered disabled state
[ 1918.079249] dummy0: entered allmulticast mode
[ 1918.079330] dummy0: entered promiscuous mode
[ 1918.082814] br0: port 1(dummy0) entered blocking state
[ 1918.082846] br0: port 1(dummy0) entered forwarding state
[ 1918.328738] dummy0: left allmulticast mode
[ 1918.328804] dummy0: left promiscuous mode
[ 1918.328873] br0: port 1(dummy0) entered disabled state