[ 1865.969669] br0: port 1(dummy0) entered blocking state
[ 1865.969706] br0: port 1(dummy0) entered disabled state
[ 1865.969759] dummy0: entered allmulticast mode
[ 1865.969832] dummy0: entered promiscuous mode
[ 1865.973259] br0: port 1(dummy0) entered blocking state
[ 1865.973289] br0: port 1(dummy0) entered forwarding state
[ 1866.232129] dummy0: left allmulticast mode
[ 1866.232161] dummy0: left promiscuous mode
[ 1866.232194] br0: port 1(dummy0) entered disabled state