[ 2150.013999][T14961] br0: port 1(dummy0) entered blocking state
[ 2150.014293][T14961] br0: port 1(dummy0) entered disabled state
[ 2150.014570][T14961] dummy0: entered allmulticast mode
[ 2150.015682][T14961] dummy0: entered promiscuous mode
[ 2150.049776][T14962] br0: port 1(dummy0) entered blocking state
[ 2150.050147][T14962] br0: port 1(dummy0) entered forwarding state
[ 2152.498067][   T12] dummy0: left allmulticast mode
[ 2152.498835][   T12] dummy0: left promiscuous mode
[ 2152.499180][   T12] br0: port 1(dummy0) entered disabled state