[ 1813.088295] br0: port 1(dummy0) entered blocking state
[ 1813.088364] br0: port 1(dummy0) entered disabled state
[ 1813.088431] dummy0: entered allmulticast mode
[ 1813.088515] dummy0: entered promiscuous mode
[ 1813.092026] br0: port 1(dummy0) entered blocking state
[ 1813.092058] br0: port 1(dummy0) entered forwarding state
[ 1813.342571] dummy0: left allmulticast mode
[ 1813.342608] dummy0: left promiscuous mode
[ 1813.342690] br0: port 1(dummy0) entered disabled state