Cisco ONS 15454 Troubleshooting Manual page 47

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 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.
1.5.4 Create a Facility (Line) Loopback on an Intermediate-Node G-Series,
MXP, OC-N, or TXP Port
Performing the facility (line) loopback test on an intermediate port isolates whether this node is causing
circuit failure. In the situation shown in
OC-N port.
Figure 1-24 Facility (Line) Loopback on an Intermediate-Node OC-N Port
Source
ONS Node
OC-N
Test Set
Performing a loopback on an in-service circuit is service-affecting.
Caution
November 2004
1.5.4 Create a Facility (Line) Loopback on an Intermediate-Node G-Series, MXP, OC-N, or TXP Port
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.
XC OC-N
Step 5.
Figure 1-24, the test is being performed on an intermediate
Intermediate
ONS Node
OC-N XC OC-N
Cisco ONS 15454 Troubleshooting Guide, R4.6
Step
for the defective
Destination
ONS Node
OC-N XC OC-N
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4. If