Cisco ONS 15454 Troubleshooting Manual page 46

1.5.3 Create the XC Loopback on the Source OC-N Port
Initiate an external switching command (side switch) on the cross-connect cards before you retest the
Step 2
loopback circuit:
Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit
of up to 50 ms.
a.
b.
c.
d.
Step 3 Resend test traffic on the loopback circuit.
The test traffic now travels through the alternate cross-connect card.
If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear
Step 4
the XC loopback circuit:
a.
b.
c.
d.
e.
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.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-46
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 the 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.
Click the Circuits tab.
Choose the XC loopback circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box.
Confirm that the XC loopback circuit is deleted form the Circuits tab list. If the test set indicates a
good circuit, the problem might be a defective cross-connect card.
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.
"Retest the Original XC10G
1-46.
Chapter 1 General Troubleshooting
November 2004