ServerNet Cluster 6780 Planning and Installation Guide (G06.24+, H06.03+)

Troubleshooting

ServerNet Cluster 6780 Planning and Installation Guide—527301-004

10-6

Correcting a Mixed Globally Unique ID (GUID)

A mixed GUID can occur when the 6780 switches have been miscabled. To correct this

problem:

1. Check that the fiber-optic cables are correctly labeled.

2. When a mixed GUID occurs on these ports on a 6780 switch, disconnect the

cables with a mixed GUID error from all the indicated ports in Table 10-1. Do not

reconnect any of the cables until after all the cables indicated are disconnected.

3. Reconnect the LC connectors to the appropriate switch ports:

a. Align the keys on the connector body with the transceiver on the switch.

b. Insert the LC connector into the transceiver, squeezing the connector body

gently between your thumb and forefinger as you insert it. Push the connector

straight into the receptacle until the connector clicks into place.

c. Check that the connector is fully mated to the transceiver.

4. Check the link-alive LED near each switch port. The LED should light seconds

after the connector is inserted. Wait for the LED to be lit continuously. If the LED

does not remain lit without flashing after 60 seconds, refer to Green Link-Alive LED

Is Not Lit on page 10-2.

5. Check that the problem has been corrected. Refer to Checking for a Mixed

Globally Unique ID (GUID) on page 8-8.

Table 10-1. Correcting a Mixed GUID

If a mixed GUID occurs in

either of these ports: Disconnect the fiber-optic cables from these ports

Slot Port Slot Port

2 or 3 1 2 and 3 1

2 or 3 2 2 and 3 2

11 1, 2, 3, or 4 11 1, 2, 3, and 4

12 1, 2, 3, or 4 12 1, 2, 3, and 4

13 1, 2, 3, or 4 13 1, 2, 3, and 4