CHAPTER
1-1
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
78-17742-02
1
General Troubleshooting
This chapter provides procedures for troubleshooting the most common problems encountered when
operating a Cisco ONS 15454 DWDM shelf in ANSI or ETSI platforms. To troubleshoot specific alarms,
see Chapter 2, “Alarm Troubleshooting.” If you cannot find what you are looking for, contact Cisco
Technical Support (1-800-553-2447).
Alarms can occur even in those cards that are not explicitly mentioned in the Alarm sections. When an
alarm is raised, refer to its clearing procedure.
Note In this chapter, “ONS 15454” refers to both ANSI and ETSI versions of the platform unless otherwise
noted.
This chapter includes the following sections on network problems:
Note For dense wavelength division multiplexing (DWDM) network acceptance tests, refer to the
Cisco ONS 15454 DWDM Procedure Guide.
• 1.1 Loopback Description, page 1-2—Explains in general terms the types of loopback tests (facility
and terminal) that can be run along with general loopback behavior and card loopback behavior.
• 1.2 Troubleshooting MXP or TXP Circuit Paths With Loopbacks, page 1-7—Explains how to use
loopbacks tests described in “1.1 Loopback Description” section on page 1-2 to isolate trouble on
muxponder (MXP) and transponder (TXP) circuits.
• 1.3 Troubleshooting DWDM Circuit Paths With ITU-T G.709 Monitoring, page 1-24—Explains
how to utilize performance monitoring (PM) and threshold crossing alerts (TCA) to locate signal
degrades on DWDM circuit paths.
The remaining sections describe symptoms, problems, and solutions that are categorized according to
the following topics:
• 1.4 Using CTC Diagnostics, page 1-32—Explains how to perform card LED tests and download a
diagnostic file for Cisco Technical Support.
• 1.5 Restoring the Database and Default Settings, page 1-35—Provides procedures for restoring
software data and restoring the node to the default setup.
• 1.6 PC Connectivity Troubleshooting, page 1-36—Provides troubleshooting procedures for PC and
network connectivity to the ONS 15454.
• 1.7 CTC Operation Troubleshooting, page 1-41—Provides troubleshooting procedures for
Cisco Transport Controller (CTC) login or operation problems.
To Next Page
Need help?
General
