xv
Cisco ONS SONET TL1 Reference Guide, R6.0
About this Guide
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
• Obtaining Optical Networking Information
• Obtaining Documentation and Submitting a Service Request
Date Notes
March 2007 Revision History Table added for the first time
September 2007 Updated About this Guide chapter
August 2009 Updated the sections “TL1 Sessions,” “TL1 Gateway and ENE Sessions,” and
“Implementing TL1 Gateway” in Chapter 2, Procedures and Provisioning.
December 2009 Updated the “Starting Positions for an STS-Nc SPE in an OC-192 Signal” table in
Chapter 1, General Information.
To Next Page
Loading...
