[ 1744.520037] br0: port 1(dummy0) entered blocking state
[ 1744.520074] br0: port 1(dummy0) entered disabled state
[ 1744.520112] dummy0: entered allmulticast mode
[ 1744.520160] dummy0: entered promiscuous mode
[ 1744.523708] br0: port 1(dummy0) entered blocking state
[ 1744.523740] br0: port 1(dummy0) entered forwarding state
[ 1744.776521] dummy0: left allmulticast mode
[ 1744.776558] dummy0: left promiscuous mode
[ 1744.776591] br0: port 1(dummy0) entered disabled state