Cisco ONS 15454 Troubleshooting Manual page 149

Chapter 1 General Troubleshooting
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 RMA process. Contact Cisco Technical Support at 1 800 553-2447.
Complete the
Step 4
Step 5 Clear the facility loopback on the port:
a.
b.
c.
d.
e.
Complete the
Step 6
page
1.6.6 Perform a Terminal Loopback on a Destination-Node FC_MR Port
The terminal loopback at the destination-node port is the final local hardware error elimination in the
circuit troubleshooting process. If this test is completed successfully, you have verified that the circuit
is good up to the destination port. The example in
intermediate-node destination FC_MR port.
Figure 1-43 Terminal Loopback on a Destination-Node FC_MR Port
Source
ONS Node
MXP
Test Set
Performing a loopback on an in-service circuit is service-affecting.
Caution
Terminal loopbacks require on-site personnel.
Note
Complete the
page
Create the Terminal Loopback on a Destination-Node FC_MR Port
Connect an optical test set to the port you are testing:
Step 1
November 2009
"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.
Choose the appropriate state (IS; OOS,DSBLD; OOS,MT; IS,AINS) from the Admin State column
for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"1.6.6 Perform a Terminal Loopback on a Destination-Node FC_MR Port" procedure on
1-105.
TXP
"Create the Terminal Loopback on a Destination-Node FC_MR Port" procedure on
1-105.
1.6.6 Perform a Terminal Loopback on a Destination-Node FC_MR Port
Figure 1-43
Intermediate
ONS Node
MXP TXP
Cisco ONS 15454 Troubleshooting Guide, R8.5
for the faulty card.
shows a terminal loopback on an
Destination
ONS Node
MXP TXP
1-105