Path Computation Element Communication Protocol Extensions for the Hierarchical Path Computation Element Architecture
RFC 8685, “Path Computation Element Communication Protocol Extensions for the Hierarchical Path Computation Element Architecture”, is a Proposed Standard document published in December 2019 by F. Zhang, Q. Zhao, O. Gonzalez de Dios, R. Casellas, D. King. It has since been updated by RFC 9756. The canonical text is published by the RFC Editor.
Abstract
The Hierarchical Path Computation Element (H-PCE) architecture is defined in RFC 6805. It provides a mechanism to derive an optimum end-to-end path in a multi-domain environment by using a hierarchical relationship between domains to select the optimum sequence of domains and optimum paths across those domains.
This document defines extensions to the Path Computation Element Communication Protocol (PCEP) to support H-PCE procedures.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8685 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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