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Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter 1 General Troubleshooting
Identify Points of Failure on an OC-N Circuit Path
• Click Apply.
• Click Yes in the confirmation dialog.
b. Proceed to the “Perform a Terminal Loopback on a Source-Node OC-N Port” procedure on
page 1-27.
Step 4 If the test set indicates a faulty circuit, there might be a problem with the cross-connect card.
Step 5 Proceed to the “Test the Standby XTC Card” procedure on page 1-25.
Procedure: Test the Standby XTC Card
Step 1 Perform a reset on the active XTC card:
a. Determine which cross-connect card is active. On both the physical node and the CTC window, the
active XTC has a green ACT LED, and the standby XTC has an amber SBY LED.
b. Position the cursor over the active cross-connect card.
c. Right-click and choose Reset from the shortcut menu.
d. On the Resetting Card dialog box, click Yes. After 20 to 40 seconds, a “lost node connection,
changing to network view” message is displayed.
e. Click OK. On the network view map, the node where you reset the XTC is gray.
f. After the node icon turns green (within 1 to 2 minutes), double-click it. On the shelf graphic, observe
the following:
• The previous standby XTC displays a green ACT LED.
• The previous active XTC LEDs go through the following LED sequence: NP (card not present),
Ldg (software is loading), amber SBY LED (XTC is in standby mode).
• The LEDs should complete this sequence within 5 to 10 minutes.
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 that the cross-connect card is not causing the problem:
a. Clear the cross-connect loopback circuit:
• Click the Circuits tab.
• Choose the cross-connect loopback circuit being tested.
• Click the Delete button.
• Click the Yes button in the Delete Circuits dialog box.
• Confirm that the cross-connect loopback circuit is deleted from the Circuits tab list.
b. Proceed to “Perform a Terminal Loopback on a Source-Node OC-N Port” procedure on page 1-27.
Step 4 If the test set indicates a good circuit, the problem might be a defective cross-connect card.
Step 5 Proceed to the “Retest the Original XTC Card” procedure on page 1-26.