Cisco ONS 15454 Troubleshooting Manual page 15

Chapter 1 General Troubleshooting
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 test does not indicate a faulty circuit, proceed to
Step 4 Complete the
cross-connect card.
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 hairpin circuit:
a.
b.
c.
d.
e.
Step 6 Complete the
procedure on page
1.3.3 Perform an XC Loopback on a Destination Node OC-N STS (West to East)
The XC loopback tests whether any problem exists on the circuit's OC-N span, isolating this span from
others present on the card. The loopback occurs on the XC10G cross-connect card in a network circuit.
Figure 1-12
The XC Loopback on an OC-N card does not affect traffic on other circuits.
Note
Figure 1-12 XC Loopback on a Destination OC-N Port
OC-Nx
Step 1 Connect an optical test set to the port you are testing:
November 2004
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 hairpin circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box.
Confirm that the hairpin circuit is deleted form the Circuits tab list.
"Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)"
1-18.
shows an example of an XC loopback on a destination OC-N port.
XC OC-Ny
1.3.3 Perform an XC Loopback on a Destination Node OC-N STS (West to East)
Step
Test Set
Cisco ONS 15454 Troubleshooting Guide, R4.6
5.
for the defective
Step 4. If
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