| cable-swap | Displays the results of the cable swap test.  If the test fails, ensure you are not using a straight-through cable between an appliance port and a router, or a crossover cable between an appliance port and a switch.  | 
| duplex  | Displays the results of the duplex matching test. If one side is different from the other, then traffic is sent at different rates on each side, causing a great deal of collision.  | 
| ip-port-reach | Displays the results of the IP port reachability test. | 
| net-gateway  | Displays the results of the network gateway test. | 
| peer-reach | Displays the results of the peer reachability test. |