[  631.991080][T24580] br0: port 1(dummy0) entered blocking state
[  631.991268][T24580] br0: port 1(dummy0) entered disabled state
[  631.991434][T24580] dummy0: entered allmulticast mode
[  631.992379][T24580] dummy0: entered promiscuous mode
[  632.027513][T24581] br0: port 1(dummy0) entered blocking state
[  632.027733][T24581] br0: port 1(dummy0) entered forwarding state
[  633.907175][   T68] dummy0: left allmulticast mode
[  633.907548][   T68] dummy0: left promiscuous mode
[  633.907997][   T68] br0: port 1(dummy0) entered disabled state