[ 2110.971449][T10531] br0: port 1(dummy0) entered blocking state
[ 2110.971789][T10531] br0: port 1(dummy0) entered disabled state
[ 2110.972127][T10531] dummy0: entered allmulticast mode
[ 2110.973295][T10531] dummy0: entered promiscuous mode
[ 2111.000169][T10532] br0: port 1(dummy0) entered blocking state
[ 2111.000539][T10532] br0: port 1(dummy0) entered forwarding state
[ 2113.476217][   T12] dummy0: left allmulticast mode
[ 2113.477221][   T12] dummy0: left promiscuous mode
[ 2113.477687][   T12] br0: port 1(dummy0) entered disabled state