[ 1805.295724] br0: port 1(dummy0) entered blocking state
[ 1805.295799] br0: port 1(dummy0) entered disabled state
[ 1805.295867] dummy0: entered allmulticast mode
[ 1805.295956] dummy0: entered promiscuous mode
[ 1805.299708] br0: port 1(dummy0) entered blocking state
[ 1805.299744] br0: port 1(dummy0) entered forwarding state
[ 1805.570308] dummy0: left allmulticast mode
[ 1805.570351] dummy0: left promiscuous mode
[ 1805.570383] br0: port 1(dummy0) entered disabled state