[ 1745.734403] br0: port 1(dummy0) entered blocking state
[ 1745.734478] br0: port 1(dummy0) entered disabled state
[ 1745.734544] dummy0: entered allmulticast mode
[ 1745.734633] dummy0: entered promiscuous mode
[ 1745.737471] br0: port 1(dummy0) entered blocking state
[ 1745.737501] br0: port 1(dummy0) entered forwarding state
[ 1745.930663] dummy0: left allmulticast mode
[ 1745.930690] dummy0: left promiscuous mode
[ 1745.930720] br0: port 1(dummy0) entered disabled state