[ 1860.232958] br0: port 1(dummy0) entered blocking state
[ 1860.233027] br0: port 1(dummy0) entered disabled state
[ 1860.233091] dummy0: entered allmulticast mode
[ 1860.233171] dummy0: entered promiscuous mode
[ 1860.236375] br0: port 1(dummy0) entered blocking state
[ 1860.236405] br0: port 1(dummy0) entered forwarding state
[ 1860.477083] dummy0: left allmulticast mode
[ 1860.477116] dummy0: left promiscuous mode
[ 1860.477145] br0: port 1(dummy0) entered disabled state