[ 1635.611594] br0: port 1(dummy0) entered blocking state
[ 1635.611646] br0: port 1(dummy0) entered disabled state
[ 1635.611685] dummy0: entered allmulticast mode
[ 1635.611736] dummy0: entered promiscuous mode
[ 1635.614531] br0: port 1(dummy0) entered blocking state
[ 1635.614561] br0: port 1(dummy0) entered forwarding state
[ 1635.804553] dummy0: left allmulticast mode
[ 1635.804589] dummy0: left promiscuous mode
[ 1635.804617] br0: port 1(dummy0) entered disabled state