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Cisco ONS 15600 Reference Manual, R7.2
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, conventions, related documentation, and
technical assistance information for the Cisco ONS 15600 Reference Manual.
This section provides the following information:
• Revision History
• Document Objectives
• Audience
• Related Documentation
• Document Conventions
• Obtaining Optical Networking Information
• Obtaining Documentation and Submitting a Service Request