[ 1693.030113] br0: port 1(dummy0) entered blocking state
[ 1693.030160] br0: port 1(dummy0) entered disabled state
[ 1693.030192] dummy0: entered allmulticast mode
[ 1693.030245] dummy0: entered promiscuous mode
[ 1693.033056] br0: port 1(dummy0) entered blocking state
[ 1693.033119] br0: port 1(dummy0) entered forwarding state
[ 1693.226620] dummy0: left allmulticast mode
[ 1693.226654] dummy0: left promiscuous mode
[ 1693.226707] br0: port 1(dummy0) entered disabled state