[ 1774.843009] br0: port 1(dummy0) entered blocking state
[ 1774.843049] br0: port 1(dummy0) entered disabled state
[ 1774.843085] dummy0: entered allmulticast mode
[ 1774.843141] dummy0: entered promiscuous mode
[ 1774.845870] br0: port 1(dummy0) entered blocking state
[ 1774.845904] br0: port 1(dummy0) entered forwarding state
[ 1775.042526] dummy0: left allmulticast mode
[ 1775.042608] dummy0: left promiscuous mode
[ 1775.042673] br0: port 1(dummy0) entered disabled state