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Cisco ONS 15454 Reference Manual, R4.1.x and 4.5
February 2004
About this Manual
Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These terms
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 section explains the objectives, intended audience, and organization of this publication and
describes the conventions that convey instructions and other information.
Revision History
This section provides the following information:
• Document Objectives
• Audience
• Document Organization
• Related Documentation
• Document Conventions
• Where to Find Safety and Warning Information
• Obtaining Documentation
• Obtaining Technical Assistance
• Obtaining Additional Publications and Information
Date Notes
03/30/2007 Revision History Table added for the first time.
08/15/2007 Updated About this Manual chapter.