[ 1587.855663] br0: port 1(dummy0) entered blocking state
[ 1587.855708] br0: port 1(dummy0) entered disabled state
[ 1587.855737] dummy0: entered allmulticast mode
[ 1587.855791] dummy0: entered promiscuous mode
[ 1587.858789] br0: port 1(dummy0) entered blocking state
[ 1587.858858] br0: port 1(dummy0) entered forwarding state
[ 1588.065984] dummy0: left allmulticast mode
[ 1588.066017] dummy0: left promiscuous mode
[ 1588.066048] br0: port 1(dummy0) entered disabled state