Multi-Class DSTE Support for the Path Computation Element Communication Protocol

Document Type Expired Internet-Draft (individual)
Authors Quintin Zhao  , Suresh Babu  , Daniel King 
Last updated 2009-07-06
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Diffserv-Aware Traffic Engineering (DS-TE) can be used by Service Providers to perform fine grain bandwidth management of a subset, or sub-pool, of traffic flows. Typically in DS-TE a diffserv class will use a single Label Switch Path (LSP) that satisfies the bandwidth required. Where traffic with different diffserv characteristics must be mapped to a single LSP. Multi-Class DS-TE can be used to select an LSP that satisfy the bandwidth requirement of all classes required. This document specifies the PCEP extentions to support Multi-Class Type DS-TE where path computation is performed with the aid of a Path Computation Element (PCE).


Quintin Zhao (
Suresh Babu (
Daniel King (

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