[ 1765.635655] br0: port 1(dummy0) entered blocking state
[ 1765.635704] br0: port 1(dummy0) entered disabled state
[ 1765.635738] dummy0: entered allmulticast mode
[ 1765.635789] dummy0: entered promiscuous mode
[ 1765.638444] br0: port 1(dummy0) entered blocking state
[ 1765.638482] br0: port 1(dummy0) entered forwarding state
[ 1765.837423] dummy0: left allmulticast mode
[ 1765.837461] dummy0: left promiscuous mode
[ 1765.837517] br0: port 1(dummy0) entered disabled state