[ 1758.375171] br0: port 1(dummy0) entered blocking state
[ 1758.375252] br0: port 1(dummy0) entered disabled state
[ 1758.375326] dummy0: entered allmulticast mode
[ 1758.375415] dummy0: entered promiscuous mode
[ 1758.378787] br0: port 1(dummy0) entered blocking state
[ 1758.378819] br0: port 1(dummy0) entered forwarding state
[ 1758.610060] dummy0: left allmulticast mode
[ 1758.610100] dummy0: left promiscuous mode
[ 1758.610156] br0: port 1(dummy0) entered disabled state