Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, Release 3.4
About This Guide

Table Of Contents




Related Documentation


Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Technical Assistance Center


This section explains who should read the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.4, how the document is organized, related documentation, document conventions, how to order print and CD-ROM documentation, and how to obtain technical assistance.


This guide is for Cisco ONS 15454 SDH users who are responsible for troubleshooting and maintenance. General troubleshooting categories and a comprehensive list of ONS 15454 SDH alarms are provided. These sections include procedures for correcting every troubleshooting issue. All maintenance procedures are included, as well as detailed card reference information.

Users responsible for installing and configuring ONS 15454 SDH nodes should have the companion Cisco ONS 15454 SDH Installation and Operations Guide.


Chapter and Title

Chapter 1, "Alarm Troubleshooting"

Alphabetically lists the alarms generated by the ONS 15454 SDH and provides troubleshooting procedures for each alarm.

Chapter 2, "General Troubleshooting"

Explains several common troubleshooting topics and provides their solution procedures.

Chapter 3, "Card Reference"

Provides a functional description, illustration, block diagram, and specifications for every ONS 15454 SDH FMEC and card.

Chapter 4, "Maintenance"

Explains how to perform several routine hardware and software maintenance procedures.


Defines commonly-used terms.

Related Documentation

The following documentation can be used in conjunction with this manual:

Cisco ONS 15454 SDH Installation and Operations Guide, Release 3.4

Cisco ONS 15454 SDH Product Overview, Release 3.4

Release Notes for the Cisco ONS 15454 SDH, Release 3.4

Cisco Warranty Services for ONG Products

Installing the Cisco ONS 15454 SDH Conducted Emissions Kit (Required for EMEA compliance only)


The following conventions are used throughout this publication:

Note Means reader take note. Notes contain helpful suggestions or useful background information.

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Warning Means reader be careful. In this situation, you might do something that could result in harm to yourself or others.

Tip Means the information might help you solve a problem.


Bold text

Denotes icons, buttons, or tabs that the user must select.


Used to separate consecutive actions; for example, "click the Maintenance > Protection > Ring tabs."


Precedes all procedures; a horizontal line indicates the end of each procedure.

Obtaining Documentation

These sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at this URL:

Translated documentation is available at this URL:

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Ordering Documentation

You can order Cisco documentation in these ways:

Registered users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

Registered users can order the Documentation CD-ROM through the online Subscription Store:

Nonregistered users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom of the page.

You can e-mail your comments to

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. registered users have complete access to the technical support resources on the Cisco TAC Web Site. is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world. is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

If you want to obtain customized information and service, you can self-register on To access, go to this URL:

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Cisco TAC inquiries are categorized according to the urgency of the issue:

Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

If you are a registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.