[ 1894.080804] br0: port 1(dummy0) entered blocking state
[ 1894.080845] br0: port 1(dummy0) entered disabled state
[ 1894.080879] dummy0: entered allmulticast mode
[ 1894.080934] dummy0: entered promiscuous mode
[ 1894.084141] br0: port 1(dummy0) entered blocking state
[ 1894.084177] br0: port 1(dummy0) entered forwarding state
[ 1894.314008] dummy0: left allmulticast mode
[ 1894.314047] dummy0: left promiscuous mode
[ 1894.314082] br0: port 1(dummy0) entered disabled state