[ 1937.777767][T30785] br0: port 1(dummy0) entered blocking state
[ 1937.777957][T30785] br0: port 1(dummy0) entered disabled state
[ 1937.778122][T30785] dummy0: entered allmulticast mode
[ 1937.778992][T30785] dummy0: entered promiscuous mode
[ 1937.819988][T30786] br0: port 1(dummy0) entered blocking state
[ 1937.820205][T30786] br0: port 1(dummy0) entered forwarding state
[ 1939.935001][   T71] dummy0: left allmulticast mode
[ 1939.935192][   T71] dummy0: left promiscuous mode
[ 1939.935430][   T71] br0: port 1(dummy0) entered disabled state