Cisco ONS 15454 SDH - Test the Standby XC10 G Cross-Connect Card

1-19
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
July 2005
Chapter 1 General Troubleshooting
1.2.3 Perform an XC Loopback on a Destination-Node STM-N VC (West to East) Carrying an Electrical Signal
Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the
test set is capable of indicating.
Step 3 If the test set indicates a good circuit, no further testing is necessary with the cross-connect. Clear the
XC loopback:
a. In card view, click the Maintenance > Loopback > VC4 tabs.
b. Uncheck the check box in the XC Loopback column for the circuit being tested.
c. Click Apply.
d. Click Yes in the confirmation dialog box.
Step 4 Complete the “Test the Standby XC10G Cross-Connect Card” procedure on page 1-19.
Test the Standby XC10G Cross-Connect Card
Step 1 Perform a reset on the standby cross-connect card:
a. Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect ACT/STBY LED is amber and the active card ACT/STBY LED
is green.
b. Position the cursor over the standby cross-connect card.
c. Right-click and choose RESET CARD.
d. Click Yes in the confirmation dialog box.
Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the
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. Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect ACT/STBY LED is amber and the active card ACT/STBY LED
is green.
b. In the node view, select the Maintenance > Cross-Connect > Card tabs.
c. In the Cross-Connect Cards area, click Switch.
d. Click Yes in the Confirm Switch dialog box.
Note After the active cross-connect goes into standby mode, the original standby card becomes
active and its ACT/STBY LED turns green. The former active card becomes standby and its
ACT/STBY LED turns amber.
Step 3 Resend test traffic on the loopback circuit.
The test traffic now travels through the alternate cross-connect card.