Information Encoding for Impaired Optical Path Validation

Document Type Expired Internet-Draft (individual)
Authors Greg Bernstein  , Young Lee  , Xian Zhang 
Last updated 2013-08-25 (latest revision 2013-02-21)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document provides an information encoding for the optical impairment characteristics of optical network elements for use in path computation and optical path impairment validation. This encoding is based on ITU-T defined optical network element characteristics as given in ITU-T recommendation G.680 and related specifications. This encoding is intentionally compatible with a previous impairment free optical information encoding used in optical path computations and wavelength assignment.


Greg Bernstein (
Young Lee (
Xian Zhang (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)