[ 1785.277851] br0: port 1(dummy0) entered blocking state
[ 1785.277932] br0: port 1(dummy0) entered disabled state
[ 1785.278005] dummy0: entered allmulticast mode
[ 1785.278097] dummy0: entered promiscuous mode
[ 1785.281890] br0: port 1(dummy0) entered blocking state
[ 1785.281923] br0: port 1(dummy0) entered forwarding state
[ 1785.568928] dummy0: left allmulticast mode
[ 1785.568968] dummy0: left promiscuous mode
[ 1785.569058] br0: port 1(dummy0) entered disabled state