General Troubleshooting
This chapter provides procedures for troubleshooting the most common problems encountered when
operating a Cisco ONS 15454. To troubleshoot specific ONS 15454 alarms, see
Troubleshooting."
Center (1 800 553-2447).
The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These terms
Note
do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration.
Rather, these terms, as well as "Path Protected Mesh Network" and "PPMN," refer generally to Cisco's
path protection feature, which may be used in any topological network configuration. Cisco does not
recommend using its path protection feature in any particular topological network configuration.
This chapter includes the following sections on network problems:
•
Network Troubleshooting
test circuit paths through the network or logically isolate faults.
Note
•
Identify Points of Failure on a DS-N Circuit
the
•
Using the DS3XM-6 Card FEAC (Loopback)
(FEAC) functions on the DS3XM-6 card.
•
Identify Points of Failure on an Optical Circuit
in the
The remaining sections describe symptoms, problems, and solutions that are categorized according to
the following topics:
•
Restoring the Database and Default
restoring the node to the default setup.
PC Connectivity
•
connectivity to the ONS 15454.
CTC Operation
•
problems.
Circuits and
•
as well as timing reference errors and alarms.
November 2004
If you cannot find what you are looking for, contact the Cisco Technical Assistance
Tests—Describes loopbacks and hairpin circuits, which you can use to
For network acceptance tests, refer to the Cisco ONS 15454 Procedure Guide.
"1.1 Network Troubleshooting Tests"
"1.1 Network Troubleshooting Tests"
Troubleshooting—Provides troubleshooting procedures for PC and network
Troubleshooting—Provides troubleshooting procedures for CTC login or operation
Timing—Provides troubleshooting procedures for circuit creation and error reporting
C H A P T E R
Path—Explains how to perform the tests described in
section on a DS-N circuit.
Functions—Describes the far-end alarm and control
Path—Explains how to perform the tests described
section on an OC-N circuit.
Settings—Provides procedures for restoring software data and
Cisco ONS 15454 Troubleshooting Guide, R4.6
1
Chapter 2, "Alarm
1-1