[ 1675.288765] br0: port 1(dummy0) entered blocking state
[ 1675.288837] br0: port 1(dummy0) entered disabled state
[ 1675.288906] dummy0: entered allmulticast mode
[ 1675.289000] dummy0: entered promiscuous mode
[ 1675.291773] br0: port 1(dummy0) entered blocking state
[ 1675.291806] br0: port 1(dummy0) entered forwarding state
[ 1675.485153] dummy0: left allmulticast mode
[ 1675.485231] dummy0: left promiscuous mode
[ 1675.485263] br0: port 1(dummy0) entered disabled state