Test And Clear The Oc-N Facility Loopback Circuit; Test The Oc-N (Controller) Card - Cisco ONS 15310-CL Troubleshooting Manual

1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port
Step 6 Complete the

Test and Clear the OC-N Facility Loopback Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test
set is capable of indicating.
If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the
Step 3
facility loopback from the port:
a.
b.
c.
d.
e.
Clear the facility loopback circuit:
Step 4
a.
b.
c.
d.
Complete the
Step 5

Test the OC-N (Controller) Card

Complete the
Step 1
replace it with a known-good one.
Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
Caution
perform an external switch if a switch has not already occurred. Refer to the procedures in the
"1.10.1 Protection Switching, Lock Initiation, and Clearing" section on page
information, refer to the "Maintain the Node" chapter in the Cisco ONS 15310-CL and
Cisco ONS 15310-MA Procedure Guide.
Resend test traffic on the loopback circuit with a known-good card installed.
Step 2
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-34
It is normal for the
Note
clears when you remove the loopback.
"Test and Clear the OC-N Facility Loopback Circuit" procedure on page
Double-click the 15310-CL-CTX or CTX2500 card and click the Maintenance > Optical >
Loopback > Port tabs.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state (IS; OOS,DSBLD; OOS,MT) from the Admin State column for the port
being tested.
Click Apply.
Click Yes in the confirmation dialog box.
Click the Circuits tab.
Choose the loopback circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box. Do not check any check boxes.
"Test the OC-N (Controller) Card" procedure on page
"Physically Replace a Card" procedure on page 1-155
"LPBKFACILITY (OCN)" condition on page
Chapter 1 General Troubleshooting
1-104. The condition
1-34.
1-34.
for the suspected bad card and
1-148. For more
78-17235-01