[  814.823522][T14319] br0: port 1(dummy0) entered blocking state
[  814.823757][T14319] br0: port 1(dummy0) entered disabled state
[  814.823976][T14319] dummy0: entered allmulticast mode
[  814.825365][T14319] dummy0: entered promiscuous mode
[  814.851682][T14320] br0: port 1(dummy0) entered blocking state
[  814.852024][T14320] br0: port 1(dummy0) entered forwarding state
[  816.889235][   T12] dummy0: left allmulticast mode
[  816.892468][   T12] dummy0: left promiscuous mode
[  816.892706][   T12] br0: port 1(dummy0) entered disabled state