[ 2160.328708][T17913] br0: port 1(dummy0) entered blocking state
[ 2160.328916][T17913] br0: port 1(dummy0) entered disabled state
[ 2160.329083][T17913] dummy0: entered allmulticast mode
[ 2160.329947][T17913] dummy0: entered promiscuous mode
[ 2160.362554][T17914] br0: port 1(dummy0) entered blocking state
[ 2160.362717][T17914] br0: port 1(dummy0) entered forwarding state
[ 2162.647807][   T12] dummy0: left allmulticast mode
[ 2162.648517][   T12] dummy0: left promiscuous mode
[ 2162.648759][   T12] br0: port 1(dummy0) entered disabled state