[ 1605.596438] br0: port 1(dummy0) entered blocking state
[ 1605.596524] br0: port 1(dummy0) entered disabled state
[ 1605.596597] dummy0: entered allmulticast mode
[ 1605.596685] dummy0: entered promiscuous mode
[ 1605.599672] br0: port 1(dummy0) entered blocking state
[ 1605.599708] br0: port 1(dummy0) entered forwarding state
[ 1605.792721] dummy0: left allmulticast mode
[ 1605.792761] dummy0: left promiscuous mode
[ 1605.792794] br0: port 1(dummy0) entered disabled state