[ 1798.717373] br0: port 1(dummy0) entered blocking state
[ 1798.717424] br0: port 1(dummy0) entered disabled state
[ 1798.717460] dummy0: entered allmulticast mode
[ 1798.717513] dummy0: entered promiscuous mode
[ 1798.720854] br0: port 1(dummy0) entered blocking state
[ 1798.720889] br0: port 1(dummy0) entered forwarding state
[ 1798.942308] dummy0: left allmulticast mode
[ 1798.942347] dummy0: left promiscuous mode
[ 1798.942381] br0: port 1(dummy0) entered disabled state