Test And Clear The Oc-N Terminal Loopback Circuit; Test The Oc-N Card - Cisco ONS 15310-CL Troubleshooting Manual

Chapter 1 General Troubleshooting
f.
g.
Complete the
Step 6

Test and Clear the OC-N Terminal Loopback Circuit

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

Test the OC-N Card

Complete the
Step 1
replace it with a known-good one.
Caution Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
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.
Step 2
78-17235-01
Click Apply.
Click Yes in the confirmation dialog box.
"Test and Clear the OC-N Terminal Loopback Circuit" procedure on page
Double-click the intermediate-node 15310-CL-CTX or CTX2500 with the terminal loopback to
display the card view.
Click the Maintenance > Optical > Loopback > Port tabs.
Select None from the Loopback Type column for the port being tested.
Select the appropriate state (IS; OOS,DSBLD; OOS,MT) in 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 Card" procedure on page
"Physically Replace a Card" procedure on page 1-155
1.6.4 Perform a Terminal Loopback on Intermediate-Node OC-N Ports
1-37.
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-37.
for the suspected bad card and
1-148. For more
1-37