4) Routers 0.1.3... send an (ACK) to the controller after the task is executed; 5) The SDN controller identifies the lit ports and turns off the others; 6) All routers apply the change to the forward tables for redirection by other ports; 7) Nodes 0, 1, 2... stop sending IGP packets; 8) Ports (0 - 1, 2 - 5...) stop and enter sleep mode to be turned off; |