[ 1895.556577] br0: port 1(dummy0) entered blocking state
[ 1895.556654] br0: port 1(dummy0) entered disabled state
[ 1895.556723] dummy0: entered allmulticast mode
[ 1895.556806] dummy0: entered promiscuous mode
[ 1895.560316] br0: port 1(dummy0) entered blocking state
[ 1895.560350] br0: port 1(dummy0) entered forwarding state
[ 1895.811843] dummy0: left allmulticast mode
[ 1895.811905] dummy0: left promiscuous mode
[ 1895.811992] br0: port 1(dummy0) entered disabled state