[ 1716.223003] br0: port 1(dummy0) entered blocking state
[ 1716.223043] br0: port 1(dummy0) entered disabled state
[ 1716.223078] dummy0: entered allmulticast mode
[ 1716.223126] dummy0: entered promiscuous mode
[ 1716.225878] br0: port 1(dummy0) entered blocking state
[ 1716.225918] br0: port 1(dummy0) entered forwarding state
[ 1716.417808] dummy0: left allmulticast mode
[ 1716.417844] dummy0: left promiscuous mode
[ 1716.417877] br0: port 1(dummy0) entered disabled state