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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0
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Chapter 1 General Troubleshooting
Troubleshooting Ethernet Circuit Paths With Loopbacks
e. Confirm that the hairpin circuit is deleted from the Circuits tab list.
Step 4 Complete the “Test the Standby Cross-Connect Card” procedure on page 1-38.
Test the Standby Cross-Connect Card
Note Two cross-connect cards (active and standby) must be in use on a node to use this procedure.
Step 1 Perform a reset on the Active cross-connect card to make the Standby card Active:
a. Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect ACT/SBY LED is amber and the active card ACT/SBY LED is
green.
b. Position the cursor over the standby cross-connect card.
c. Right-click and choose RESET CARD.
d. Click Yes in the confirmation dialog box.
Note After the active cross-connect goes into standby mode, the original standby card becomes
active and its ACT/SBY LED turns green. The former active card becomes standby and its
ACT/SBY LED turns amber.
Step 2 Resend test traffic on the loopback circuit.
The test traffic now travels through the alternate cross-connect card.
Step 3 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear
the hairpin circuit:
a. Click the Circuits tab.
b. Choose the hairpin circuit being tested.
c. Click Delete.
d. Click Yes in the Delete Circuits dialog box. Do not check any check boxes.
e. Confirm that the hairpin circuit is deleted from the Circuits tab list.
Step 4 To confirm a defective original cross-connect card, complete the “Retest the Original Cross-Connect
Card” procedure on page 1-38.
Retest the Original Cross-Connect Card
Step 1 Initiate an external switching command (side switch) on the cross-connect cards:
a. Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect ACT/SBY LED is amber and the active card ACT/SBY LED is
green.
b. In node view, select the Maintenance > Cross-Connect > Cards tabs.
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