Figure 1-23 Terminal Loopback Indicator - Cisco ONS 15454 Troubleshooting Manual

Hide thumbs Also See for ONS 15454:
Table of Contents

Advertisement

1.4.2 Perform a Terminal Loopback on a Source-Node Optical Port
Step 6
Complete the
page
1.4.2 Perform a Terminal Loopback on a Source-Node Optical Port
The terminal loopback test is performed on the source-node optical port. For the circuit in this example,
it is the source OC-N port in the source node. You first create a bidirectional circuit that starts on the
node destination optical port and loops back on the node source optical port. You then proceed with the
terminal loopback test. Completing a successful terminal loopback to a node source port verifies that the
circuit is good to the source port.
OC-N port.
Figure 1-22
Terminal Loopback on a Source-Node OC-N Port
Source
ONS Node
OC-N
Test Set
OC-N cards in terminal loopback state display an icon in CTC, shown in
Figure 1-23
Performing a loopback on an in-service circuit is service-affecting.
Caution
Note
Terminal loopbacks require on-site personnel.
Complete the
Create the Terminal Loopback on a Source-Node Optical Port
Step 1
Connect an optical test set to the port you are testing:
Cisco ONS 15454 Troubleshooting Guide, R8.5
1-50
"1.4.2 Perform a Terminal Loopback on a Source-Node Optical Port" procedure on
1-50.
XC
OC-N
Terminal Loopback Indicator
"Create the Terminal Loopback on a Source-Node Optical Port" procedure on page
Figure 1-22
shows an example of a terminal loopback on a source
Intermediate
ONS Node
OC-N
XC
OC-N
Chapter 1
General Troubleshooting
Destination
ONS Node
OC-N
XC
OC-N
Figure
1-23.
November 2009
1-50.

Advertisement

Table of Contents
loading

Table of Contents