Test The Xc Loopback Circuit - Cisco ONS 15454 Troubleshooting Manual

1.3.7 Perform an XC Loopback on a Source Node OC-N STS (East to West)
e.
Complete the
Step 4

Test the XC Loopback Circuit

This procedure is performed only on OC-N cards.
Note
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.
Step 4 Complete the
TXP Port" procedure on page
the cross-connect card.
Complete the
Step 5
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.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-30
Click Yes in the confirmation dialog.
"Test the XC Loopback Circuit" procedure on page
In card view, click the Provisioning > SONET STS tabs.
Uncheck the check box in the XC Loopback column for the circuit being tested.
Click Apply.
Click Yes in the confirmation dialog.
"Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or
1-48. If the test set indicates a faulty circuit, there might be a problem with
"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's ACT/SBY LED is amber and the active card's ACT/SBY 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's ACT/SBY LED is amber and the active card's ACT/SBY LED
is green.
Chapter 1 General Troubleshooting
1-45.
1-45.
November 2004