[ 2135.055743][ T5597] br0: port 1(dummy0) entered blocking state
[ 2135.055952][ T5597] br0: port 1(dummy0) entered disabled state
[ 2135.056129][ T5597] dummy0: entered allmulticast mode
[ 2135.057025][ T5597] dummy0: entered promiscuous mode
[ 2135.085901][ T5598] br0: port 1(dummy0) entered blocking state
[ 2135.086261][ T5598] br0: port 1(dummy0) entered forwarding state
[ 2137.140573][   T12] dummy0: left allmulticast mode
[ 2137.141032][   T12] dummy0: left promiscuous mode
[ 2137.141292][   T12] br0: port 1(dummy0) entered disabled state