[ 1769.426729] br0: port 1(dummy0) entered blocking state
[ 1769.426811] br0: port 1(dummy0) entered disabled state
[ 1769.426871] dummy0: entered allmulticast mode
[ 1769.426949] dummy0: entered promiscuous mode
[ 1769.430812] br0: port 1(dummy0) entered blocking state
[ 1769.430842] br0: port 1(dummy0) entered forwarding state
[ 1769.721608] dummy0: left allmulticast mode
[ 1769.721647] dummy0: left promiscuous mode
[ 1769.721706] br0: port 1(dummy0) entered disabled state