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