[ 2061.407116][ T9505] br0: port 1(dummy0) entered blocking state
[ 2061.407243][ T9505] br0: port 1(dummy0) entered disabled state
[ 2061.407356][ T9505] dummy0: entered allmulticast mode
[ 2061.407830][ T9505] dummy0: entered promiscuous mode
[ 2061.429282][ T9506] br0: port 1(dummy0) entered blocking state
[ 2061.429403][ T9506] br0: port 1(dummy0) entered forwarding state
[ 2062.606967][   T12] dummy0: left allmulticast mode
[ 2062.607100][   T12] dummy0: left promiscuous mode
[ 2062.607256][   T12] br0: port 1(dummy0) entered disabled state