[ 1788.921060] br0: port 1(dummy0) entered blocking state
[ 1788.921143] br0: port 1(dummy0) entered disabled state
[ 1788.921212] dummy0: entered allmulticast mode
[ 1788.921301] dummy0: entered promiscuous mode
[ 1788.925021] br0: port 1(dummy0) entered blocking state
[ 1788.925052] br0: port 1(dummy0) entered forwarding state
[ 1789.198031] dummy0: left allmulticast mode
[ 1789.198069] dummy0: left promiscuous mode
[ 1789.198173] br0: port 1(dummy0) entered disabled state