[ 1554.851927] br0: port 1(dummy0) entered blocking state
[ 1554.852017] br0: port 1(dummy0) entered disabled state
[ 1554.852084] dummy0: entered allmulticast mode
[ 1554.852178] dummy0: entered promiscuous mode
[ 1554.854826] br0: port 1(dummy0) entered blocking state
[ 1554.854868] br0: port 1(dummy0) entered forwarding state
[ 1555.026490] dummy0: left allmulticast mode
[ 1555.026568] dummy0: left promiscuous mode
[ 1555.026633] br0: port 1(dummy0) entered disabled state