Cisco 15310-MA Guia de Resolução de Problemas descarregar pdf (Página 71)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

78-18394-01

Chapter 1 General Troubleshooting

Troubleshooting Ethernet Circuit Paths With Loopbacks

Step 6 Complete the “Test and Clear the Ethernet Terminal Loopback Circuit” procedure on page 1-35.

Test and Clear the Ethernet Terminal Loopback Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information

that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the

terminal loopback state on the port:

a. Double-click the CE100T-8 card in the source node with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS; OOS,DSBLD; OOS,MT) in the Admin State column for the port

being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 4 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box. Do not check any check boxes.

Step 5 Complete the “Test the Ethernet Card” procedure on page 1-35.

Test the Ethernet Card

Step 1 Complete the “Physically Replace a Card” procedure on page 2-163 for the suspected bad card and

replace it with a known-good one.

Caution Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,

perform an external switch if a switch has not already occurred. Refer to the procedures in the

“2.10.1 Protection Switching, Lock Initiation, and Clearing” section on page 2-156. For more

information, refer to the “Maintain the Node” chapter in the Cisco ONS 15310-CL and

Cisco ONS 15310-MA Procedure Guide.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective

card to Cisco through the RMA process. Contact Cisco Technical Support (1-800-553-2447).

Step 4 Complete the “Physically Replace a Card” procedure on page 2-163 for the defective card.

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