Cisco ONS 15454 Troubleshooting Manual

Also see for ONS 15454: Procedure guide Installation instructions Hardware installation guide Install Install

Contents

C H A P T E R1-1Cisco ONS 15454 Troubleshooting Guide, R4.6November 20041General TroubleshootingThis chapter provides procedures for troubleshooting the most common problems encountered whenoperating a Cisco ONS 15454. To troubleshoot specific ONS 15454 alarms, see Chapter 2, “AlarmTroubleshooting.” If you cannot find what you are looking for, contact the Cisco Technical AssistanceCenter (1 800 553-2447).Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These termsdo 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'spath protection feature, which may be used in any topological network configuration. Cisco does notrecommend using its path protection feature in any particular topological network configuration.This chapter includes the following sections on network problems:• Network Troubleshooting Tests—Describes loopbacks and hairpin circuits, which you can use totest circuit paths through the network or logically isolate faults.Note For network acceptance tests, refer to the Cisco ONS 15454 Procedure Guide.• Identify Points of Failure on a DS-N Circuit Path—Explains how to perform the tests described inthe “1.1 Network Troubleshooting Tests” section on a DS-N circuit.• Using the DS3XM-6 Card FEAC (Loopback) Functions—Describes the far-end alarm and control(FEAC) functions on the DS3XM-6 card.• Identify Points of Failure on an Optical Circuit Path—Explains how to perform the tests describedin the “1.1 Network Troubleshooting Tests” section on an OC-N circuit.The remaining sections describe symptoms, problems, and solutions that are categorized according tothe following topics:• Restoring the Database and Default Settings—Provides procedures for restoring software data andrestoring the node to the default setup.• PC Connectivity Troubleshooting—Provides troubleshooting procedures for PC and networkconnectivity to the ONS 15454.• CTC Operation Troubleshooting—Provides troubleshooting procedures for CTC login or operationproblems.• Circuits and Timing—Provides troubleshooting procedures for circuit creation and error reportingas well as timing reference errors and alarms.