[ 1744.836012] br0: port 1(dummy0) entered blocking state
[ 1744.836047] br0: port 1(dummy0) entered disabled state
[ 1744.836082] dummy0: entered allmulticast mode
[ 1744.836139] dummy0: entered promiscuous mode
[ 1744.839727] br0: port 1(dummy0) entered blocking state
[ 1744.839793] br0: port 1(dummy0) entered forwarding state
[ 1745.111007] dummy0: left allmulticast mode
[ 1745.111072] dummy0: left promiscuous mode
[ 1745.111137] br0: port 1(dummy0) entered disabled state