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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter 1 General Troubleshooting
1.6.1 Perform a Facility Loopback on a Source-Node Ethernet Port
Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the
facility loopback:
a. Double-click the CE100T-8 card, then click the Maintenance > Loopback tabs.
b. Choose None from the Loopback Type column for the port being tested.
c. Choose the appropriate state (IS; OOS,DSBLD; OOS,MT) from the Admin State column for the port
being tested.
d. Click Apply.
e. Click Yes in the confirmation dialog box.
Step 4 Complete the “Test the Ethernet Card” procedure on page 1-30.
Test the Ethernet Card
Step 1 Complete the “Physically Replace a Card” procedure on page 2-154 for the suspected bad card and
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
“2.10.1 Protection Switching, Lock Initiation, and Clearing” section on page 2-147. For more
information, refer to the “Maintain the Node” chapter in the Cisco ONS 15310-CL and
Cisco ONS 15310-MA Procedure Guide.
Step 2 Resend test traffic on the loopback circuit with a known-good card installed.
Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective
card to Cisco through the Return Materials Authorization (RMA) process. Contact Cisco Technical
Support (1 800 553-2447).
Step 4 Complete the “Physically Replace a Card” procedure on page 2-154 for the faulty card.
Step 5 Clear the facility loopback:
a. Double-click the CE100T-8 card, then click the Maintenance > Loopback tabs.
b. Choose None from the Loopback Type column for the port being tested.
c. Choose the appropriate state (IS; OOS,DSBLD; OOS,MT) from the Admin State column for the port
being tested.
d. Click Apply.
e. Click Yes in the confirmation dialog box.
Step 6 Complete the “1.6.2 Perform a Terminal Loopback on a Source-Node Ethernet Port” procedure on
page 1-31.