Filter
Top Products
1-17
Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter 1 General Troubleshooting
Identify Points of Failure on a DS-N Circuit Path
• Click the Delete button.
• Click the Yes button in the Delete Circuits dialog box.
• Confirm that the hairpin circuit is deleted from the Circuits tab list.
b. Proceed to the “Perform a Facility Loopback on a Destination XTC Card” procedure on page 1-18.
Step 4 If the test set indicates a good circuit, the problem might be a defective card.
Step 5 To confirm a defective original XTC card, proceed to the “Retest the Original Destination XTC Card”
procedure on page 1-17.
Procedure: Retest the Original Destination XTC Card
Step 1 Perform a side switch of the XTC cards to make the original card the active card.
Note After the active XTC goes into standby, the original standby slot becomes active. This causes the
ACT/STBY LED to become green on the former standby card.
Step 2 Resend test traffic on the loopback circuit. The test traffic routes through the original XTC card.
Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card:
a. Return the defective card to Cisco through the returned materials authorization (RMA) process. Call
the Cisco TAC.
b. Replace the defective cross-connect card. See “Physically Replace a Card” procedure on
page 2-130.
c. Clear the hairpin circuit:
• Click the Circuits tab.
• Choose the hairpin circuit being tested.
• Click the Delete button.
• Click the Yes button in the Delete Circuits dialog box.
d. Proceed to Step 5.
Step 4 If the test set indicates a good circuit, the XTC card might have had a temporary problem that is cleared
by the side switch.
Clear the hairpin circuit:
• Click the Circuits tab.
• Choose the hairpin circuit being tested.
• Click the Delete button.
• Click the Yes button in the Delete Circuits dialog box.
Step 5 Proceed to the “1.2.5 Perform a Facility Loopback on a Destination XTC Card” section on page 1-18.