1-30
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter1 General Troubleshooting
1.6.1 Perform a Facility Loopback on a Source-Node Ethernet Port
Step3 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.
Step4 Complete the “Test the Ethernet Card” procedure on page 1-30.
Test the Ethernet Card
Step1 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 page2-147. For more
information, refer to the “Maintain the Node” chapter in the Cisco ONS 15310-CL and
Cisco ONS 15310-MA Procedure Guide.
Step2 Resend test traffic on the loopback circuit with a known-good card installed.
Step3 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).
Step4 Complete the “Physically Replace a Card” procedure on page 2-154 for the faulty card.
Step5 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.
Step6 Complete the “1.6.2 Perform a Terminal Loopback on a Source-Node Ethernet Port” procedure on
page 1-31.