Table Of Contents

Preface

Changes to This Document

Obtaining Documentation and Submitting a Service Request

Preface

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This reference describes the Cisco IOS XR System Error Messages for the Cisco CRS-1, Cisco XR 12000 Series Router, and Cisco ASR 9000 Series Router. The preface for Cisco IOS XR System Error Reference Guide contains the following sections:

The preface contains the following sections:

•Changes to This Document

•Obtaining Documentation and Submitting a Service Request

Changes to This Document

Table 1 lists the technical changes made to this document since it was first printed.

Table 1 Changes to This Document 

Revision	Date	Change Summary
OL-20897-01	December 2009	Initial release of this document.

Obtaining Documentation and Submitting a Service Request

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http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

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