[ 2062.286962][ T8429] br0: port 1(dummy0) entered blocking state
[ 2062.287148][ T8429] br0: port 1(dummy0) entered disabled state
[ 2062.287310][ T8429] dummy0: entered allmulticast mode
[ 2062.288184][ T8429] dummy0: entered promiscuous mode
[ 2062.315283][ T8430] br0: port 1(dummy0) entered blocking state
[ 2062.315461][ T8430] br0: port 1(dummy0) entered forwarding state
[ 2064.298867][   T12] dummy0: left allmulticast mode
[ 2064.299079][   T12] dummy0: left promiscuous mode
[ 2064.299327][   T12] br0: port 1(dummy0) entered disabled state