[ 1715.427252] br0: port 1(dummy0) entered blocking state
[ 1715.427279] br0: port 1(dummy0) entered disabled state
[ 1715.427301] dummy0: entered allmulticast mode
[ 1715.427334] dummy0: entered promiscuous mode
[ 1715.430041] br0: port 1(dummy0) entered blocking state
[ 1715.430091] br0: port 1(dummy0) entered forwarding state
[ 1715.613690] dummy0: left allmulticast mode
[ 1715.613715] dummy0: left promiscuous mode
[ 1715.613736] br0: port 1(dummy0) entered disabled state