Cisco 15310-MA Guide de dépannage télécharger pdf (Page 79)

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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

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as

C1C1toC1C4.

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT)

where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT)

used for the source dialog box.

j. Click Next.

k. In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish.

Step 4 Confirm that the newly created circuit appears on the Circuits tab list and that it is described in the Dir

column as a two-way circuit.

Note It is normal for the “LPBKTERMINAL (OCN)” condition on page 2-113 to appear during a

loopback setup. The condition clears when you remove the loopback.

Step 5 Create the terminal loopback on the destination port being tested:

a. Go to the node view of the intermediate node:

• Choose View > Go To Other Node from the menu bar.

• Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the 15310-CL-CTX or CTX2500 card that requires the loopback.

c. Click the Maintenance > Optical > Loopback > Port tabs.

d. Select OOS,MT from the Admin State column. If this is a multiport card, select the row appropriate

for the desired port.

e. Select Termin al from the Loopback Type column. If this is a multiport card, select the row

appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 6 Complete the “Test and Clear the OC-N Terminal Loopback Circuit” procedure on page 1-43.

Test and Clear the OC-N 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 from the port:

a. Double-click the intermediate-node 15310-CL-CTX or CTX2500 card with the terminal loopback

to display the card view.

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Cisco 15310-MA Guide de dépannage Page 79