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Status:

PROPOSED STANDARD

Authors:

Y. Lee
JL. Le Roux
D. King
E. Oki

Stream:

IETF

Source:

pce (rtg)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC5557

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Abstract

The Path Computation Element Communication Protocol (PCEP) allows PathComputation Clients (PCCs) to request path computations from PathComputation Elements (PCEs), and lets the PCEs return responses. Whencomputing or reoptimizing the routes of a set of Traffic EngineeringLabel Switched Paths (TE LSPs) through a network, it may beadvantageous to perform bulk path computations in order to avoidblocking problems and to achieve more optimal network-wide solutions.Such bulk optimization is termed Global Concurrent Optimization (GCO).A GCO is able to simultaneously consider the entire topology of thenetwork and the complete set of existing TE LSPs, and their respectiveconstraints, and look to optimize or reoptimize the entire network tosatisfy all constraints for all TE LSPs. A GCO may also be applied tosome subset of the TE LSPs in a network. The GCO application isprimarily a Network Management System (NMS) solution.

This document provides application-specific requirements and the PCEPextensions in support of GCO applications. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.