Cisco ONS 15454 Troubleshooting Manual page 131

Chapter 1 General Troubleshooting
c.
d.
e.
Step 6 Clear the facility loopback circuit:
a.
b.
c.
d.
Complete the
Step 7
page
1.5.7 Perform a Terminal Loopback on a Destination-Node Ethernet 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 Ethernet port.
Figure 1-36 Terminal Loopback on a Destination-Node Ethernet Port
Source
ONS Node
Ethernet
Test Set
Caution Performing a loopback on an in-service circuit is service-affecting.
Terminal loopbacks require on-site personnel.
Note
Complete the
page
Create the Terminal Loopback on a Destination-Node Ethernet Port
Connect an optical test set to the port you are testing:
Step 1
November 2009
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.
"1.5.7 Perform a Terminal Loopback on a Destination-Node Ethernet Port" procedure on
1-87.
XC Ethernet
"Create the Terminal Loopback on a Destination-Node Ethernet Port" procedure on
1-87.
1.5.7 Perform a Terminal Loopback on a Destination-Node Ethernet Port
Figure 1-29
Intermediate
ONS Node
Ethernet XC Ethernet
Cisco ONS 15454 Troubleshooting Guide, R8.5
shows a terminal loopback on an
Destination
ONS Node
Ethernet XC Ethernet
1-87