Cisco ONS 15454 Troubleshooting Manual page 18

1.3.4 Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)
To confirm a defective original cross-connect card, complete the
Step 5
Cross-Connect Card" procedure on page
Retest the Original XC10G Cross-Connect Card
This procedure is performed only on OC-N and XC10G cards.
Note
Initiate an external switching command (side switch) on the cross-connect cards.
Step 1
a.
b.
c.
d.
Step 2 Resend test traffic on the loopback circuit.
Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective
card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to
the circuit is not shown to be faulty and the card is not shown to be defective, you are finished with
testing.
Complete the
Step 4
cross-connect card and perform
If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that
Step 5
was cleared by the side switch. Clear the XC loopback circuit:
a.
b.
c.
d.
1.3.4 Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West
to East)
The terminal (inward) loopback test is performed on the node destination port in the circuit, such as a
destination node DS-N port. You create a bidirectional circuit that starts on the source node DS-N port
and loops back on the destination node DS-N port. Then you proceed with the terminal loopback test.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-18
Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED
is green.
In node view, select the Maintenance > Cross-Connect > Card tabs.
In the Cross-Connect Cards area, click Switch.
Click Yes in the Confirm Switch dialog box.
After the active cross-connect goes into standby mode, the original standby card becomes
Note
active and its ACT/SBY LED turns green. The former active card becomes standby and its
ACT/SBY LED turns amber.
"Replace an In-Service Cross-Connect Card" procedure on page 3-2
Click the Circuits tab.
Choose the XC loopback circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box.
1-46.
Step 5.
Chapter 1 General Troubleshooting
"Retest the Original XC10G
for the defective
November 2004
Step 4. If