Cisco ONS 15454 DWDM Manual page 18

1.2.5 Perform a Facility Loopback on a Destination-Node MXP or TXP Port
e.
f.
Complete the
Step 4
Test the MXP or TXP Card
Complete the
Step 1
replace it with a known-good one.
High-performance devices on this card can get hot during operation. To remove the card, hold it by
Warning
the faceplate and bottom edge. Allow the card to cool before touching any other part of it or before
placing it in an antistatic bag. Statement 201
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
"2.8.1 Protection Switching, Lock Initiation, and Clearing" section on page
information, refer to the "Maintain the Node" chapter in the Cisco ONS 15454 DWDM Procedure Guide.
Resend test traffic on the loopback circuit with a known-good card.
Step 2
If the test set indicates no errors, the problem was probably the defective card. Return the defective card
Step 3
to Cisco through the RMA process. Contact Cisco Technical Support (1-800-553-2447).
Complete the
Step 4
Clear the terminal loopback on the port:
Step 5
a.
b.
c.
d.
e.
f.
Complete the
Step 6
on page
1.2.5 Perform a Facility Loopback on a Destination-Node MXP or TXP Port
You perform a facility loopback test at the destination port to determine whether this local port is the
source of circuit trouble. The example in
client or trunk port at a destination node.
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
1-18
Click Apply.
Click Yes in the confirmation dialog box.
"Test the MXP or TXP Card" procedure on page
"Physically Replace a Card" procedure on page 2-172
"Physically Replace a Card" procedure on page 2-172
Double-click the source-node card with the terminal loopback.
Click the Maintenance > Loopback tabs.
Select None from the Loopback Type column for the port being tested.
Choose the appropriate state to place the port in service, out of service and disabled, out of service
for maintenance, or automatically in service from the Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"1.2.5 Perform a Facility Loopback on a Destination-Node MXP or TXP Port" procedure
1-18.
1-18.
Figure 1-7 shows a facility loopback being performed on a TXP
Chapter 1 General Troubleshooting
for the suspected bad card and
2-167. For more
for the defective card.
78-17742-02