[ 2093.978183][ T7191] br0: port 1(dummy0) entered blocking state
[ 2093.978385][ T7191] br0: port 1(dummy0) entered disabled state
[ 2093.978562][ T7191] dummy0: entered allmulticast mode
[ 2093.979466][ T7191] dummy0: entered promiscuous mode
[ 2094.005447][ T7192] br0: port 1(dummy0) entered blocking state
[ 2094.005639][ T7192] br0: port 1(dummy0) entered forwarding state
[ 2095.971373][   T12] dummy0: left allmulticast mode
[ 2095.971542][   T12] dummy0: left promiscuous mode
[ 2095.971770][   T12] br0: port 1(dummy0) entered disabled state