> SWITCHDEV_OBJ_ID_RING_TEST_MRP: This is used when to start/stop sending > MRP_Test frames on the mrp ring ports. This is called only on nodes that have > the role Media Redundancy Manager. How do you handle the 'headless chicken' scenario? User space tells the port to start sending MRP_Test frames. It then dies. The hardware continues sending these messages, and the neighbours thinks everything is O.K, but in reality the state machine is dead, and when the ring breaks, the daemon is not there to fix it? And it is not just the daemon that could die. The kernel could opps or deadlock, etc. For a robust design, it seems like SWITCHDEV_OBJ_ID_RING_TEST_MRP should mean: start sending MRP_Test frames for the next X seconds, and then stop. And the request is repeated every X-1 seconds. Andrew