Cisco 15310-MA Guia de Resolução de Problemas descarregar pdf (Página 51)

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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

Identify Points of Failure on an Electrical Circuit Path

c. Adjust the test set accordingly.

Step 2 Use CTC to create the facility loopback on the port being tested:

a. In node view, double-click the card where you are performing the loopback, then click the

appropriate tab:

• Maintenance > DS1 > Loopback

• Maintenance > DS3 > Loopback

• Maintenance > EC1 > Loopback

b. Select Facility from the Loopback Type column for the port being tested. If you are creating a

loopback on a multiport card, select the row appropriate for the desired port.

c. Click Apply.

d. Click Yes in the confirmation dialog box.

Note It is normal for a 2.7.160 LPBKFACILITY (DS1, DS3) or 2.7.161 LPBKFACILITY (EC1)

condition to appear during loopback setup. The condition clears when you remove the loopback.

Step 3 Continue with the “Test the Facility Loopback Circuit” procedure on page 1-15.

Test the Facility Loopback Circuit

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

Step 2 Examine the test traffic 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 with the loopback circuit.

a. Clear the facility loopback:

b. Double-click the card, then click the appropriate tab:

• Maintenance > DS1 > Loopback

• Maintenance > DS3 > Loopback

• Maintenance > EC1 > Loopback

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

d. Choose the appropriate state (IS,AINS; OOS,DSBLD; or OOS,MT) from the Admin State column

for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

The entire electrical circuit path has now passed its comprehensive series of loopback tests. This circuit

qualifies to carry live traffic.

Step 4 If the test set indicates a faulty circuit, the problem might be a faulty card or faulty cabling. Continue

with the “Test the Electrical Cabling” procedure on page 1-16.

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Cisco 15310-MA Guia de Resolução de Problemas Página 51