[ 1797.602467] br0: port 1(dummy0) entered blocking state
[ 1797.602557] br0: port 1(dummy0) entered disabled state
[ 1797.602628] dummy0: entered allmulticast mode
[ 1797.602713] dummy0: entered promiscuous mode
[ 1797.606294] br0: port 1(dummy0) entered blocking state
[ 1797.606354] br0: port 1(dummy0) entered forwarding state
[ 1797.874001] dummy0: left allmulticast mode
[ 1797.874034] dummy0: left promiscuous mode
[ 1797.874066] br0: port 1(dummy0) entered disabled state