Cisco ONS 15454 Troubleshooting Manual page 130

1.5.6 Perform a Facility Loopback on a Destination-Node Ethernet Port
e.
f.
g.
Step 6 Complete the
Test and Clear the Ethernet Facility Loopback Circuit
If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 1
Examine the traffic received by the test set. Look for errors or any other signal information that the test
Step 2
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 Ethernet Card
Step 1 Complete the
and replace it with a known-good one.
Resend test traffic on the loopback circuit with a known-good card installed.
Step 2
If the test set indicates a good circuit, the problem was probably the defective card. Return the defective
Step 3
card to Cisco through the RMA process. Contact Cisco Technical Support at 1 800 553-2447.
Complete the
Step 4
Clear the facility loopback on the port:
Step 5
a.
b.
Cisco ONS 15454 Troubleshooting Guide, R8.5
1-86
Select Facility from the Loopback Type column. If this is a multiport card, select the row
appropriate for the desired port.
Click Apply.
Click Yes in the confirmation dialog box.
"Test and Clear the Ethernet Facility Loopback Circuit" procedure on page
Click the Maintenance > Loopback 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 Ethernet Card" procedure on page
"Physically Replace a Traffic Card" procedure on page 2-273
"Physically Replace a Traffic Card" procedure on page 2-273
Click the Maintenance > Loopback tabs.
Choose None from the Loopback Type column for the port being tested.
Chapter 1 General Troubleshooting
1-86.
for the suspected bad card
for the faulty card.
1-86.
November 2009