Perform A Facility Loopback On A Destination-Node Ethernet Port; Figure 1-16 Facility Loopback On A Destination-Node Ethernet Port - Cisco ONS 15600 SDH Troubleshooting Manual

Chapter 1 General Troubleshooting
Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
Caution
perform an external switch if a switch has not already occurred. See the procedures in the
"2.8.2 Protection Switching, Lock Initiation, and Clearing" section on page
information, refer to the "Maintain the Node" chapter of the Cisco ONS 15600 SDH Procedure Guide.
Resend test traffic on the loopback circuit with a known-good card.
Step 5
If the test set indicates a good circuit, the problem was probably the defective card. Return the defective
Step 6
card to Cisco through the RMA process. Contact Cisco Technical Support (1 800 553-2447).
Complete the
Step 7
Clear the terminal loopback on the port:
Step 8
a.
b.
c.
d.
e.
f.
Clear the terminal loopback circuit:
Step 9
a.
b.
c.
d.
Step 10 Complete the
page

1.3.5 Perform a Facility Loopback on a Destination-Node Ethernet Port

You perform a facility loopback test for ASAP card Ethernet port at the destination port to determine
whether this local port is the source of circuit trouble. The example in
loopback being performed on an Ethernet port.
Figure 1-16 Facility Loopback on a Destination-Node Ethernet Port
Source
ONS Node
Ethenet
Test Set
July 2010
"Replace an I/O Card" procedure on page 2-134
Double-click the intermediate-node ASAP card with the terminal loopback.
Click the Maintenance > Ethernet > Loopback > Port tabs.
Select None from the Loopback Type column for the port being tested.
Select the appropriate state (Unlocked; Locked,disabled; Locked,maintenance) in 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.
"1.3.5 Perform a Facility Loopback on a Destination-Node Ethernet Port" procedure on
1-41.
XC Ethernet
1.3.5 Perform a Facility Loopback on a Destination-Node Ethernet Port
Intermediate
ONS Node
Ethernet XC Ethernet
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
2-123. For more
for the defective card.
Figure 1-16 shows a facility
Destination
ONS Node
Ethernet XC Ethernet
1-41