[ 1784.884235] br0: port 1(dummy0) entered blocking state
[ 1784.884281] br0: port 1(dummy0) entered disabled state
[ 1784.884319] dummy0: entered allmulticast mode
[ 1784.884373] dummy0: entered promiscuous mode
[ 1784.888005] br0: port 1(dummy0) entered blocking state
[ 1784.888036] br0: port 1(dummy0) entered forwarding state
[ 1785.143301] dummy0: left allmulticast mode
[ 1785.143337] dummy0: left promiscuous mode
[ 1785.143371] br0: port 1(dummy0) entered disabled state