[ 1860.381878] br0: port 1(dummy0) entered blocking state
[ 1860.381911] br0: port 1(dummy0) entered disabled state
[ 1860.381947] dummy0: entered allmulticast mode
[ 1860.381994] dummy0: entered promiscuous mode
[ 1860.384704] br0: port 1(dummy0) entered blocking state
[ 1860.384766] br0: port 1(dummy0) entered forwarding state
[ 1860.576583] dummy0: left allmulticast mode
[ 1860.576613] dummy0: left promiscuous mode
[ 1860.576642] br0: port 1(dummy0) entered disabled state