[ 2154.379051][T31292] br0: port 1(dummy0) entered blocking state
[ 2154.379249][T31292] br0: port 1(dummy0) entered disabled state
[ 2154.379412][T31292] dummy0: entered allmulticast mode
[ 2154.380280][T31292] dummy0: entered promiscuous mode
[ 2154.406958][T31293] br0: port 1(dummy0) entered blocking state
[ 2154.407166][T31293] br0: port 1(dummy0) entered forwarding state
[ 2156.341869][   T12] dummy0: left allmulticast mode
[ 2156.342879][   T12] dummy0: left promiscuous mode
[ 2156.343110][   T12] br0: port 1(dummy0) entered disabled state