[ 1859.724881] br0: port 1(dummy0) entered blocking state
[ 1859.724967] br0: port 1(dummy0) entered disabled state
[ 1859.725037] dummy0: entered allmulticast mode
[ 1859.725120] dummy0: entered promiscuous mode
[ 1859.728754] br0: port 1(dummy0) entered blocking state
[ 1859.728787] br0: port 1(dummy0) entered forwarding state
[ 1859.981402] dummy0: left allmulticast mode
[ 1859.981439] dummy0: left promiscuous mode
[ 1859.981467] br0: port 1(dummy0) entered disabled state