Path Computation Element Communication Protocol Procedures and Extensions for Using the PCE as a Central Controller of LSPs
RFC 9050, “Path Computation Element Communication Protocol Procedures and Extensions for Using the PCE as a Central Controller of LSPs”, is a Proposed Standard document published in July 2021 by Z. Li, S. Peng, M. Negi, Q. Zhao, C. Zhou. It has since been updated by RFC 9756. The canonical text is published by the RFC Editor.
Abstract
The Path Computation Element (PCE) is a core component of Software-Defined Networking (SDN) systems.
A PCE as a Central Controller (PCECC) can simplify the processing of a distributed control plane by blending it with elements of SDN and without necessarily completely replacing it. Thus, the Label Switched Path (LSP) can be calculated/set up/initiated and the label-forwarding entries can also be downloaded through a centralized PCE server to each network device along the path while leveraging the existing PCE technologies as much as possible.
This document specifies the procedures and Path Computation Element Communication Protocol (PCEP) extensions for using the PCE as the central controller for provisioning labels along the path of the static LSP.
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 9050 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9051 Internet Message Access Protocol - Version 4rev2
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- RFC 9046 Babel Information Model
- RFC 9045 Algorithm Requirements Update to the Internet X.509 Public Key Infrastructure Certificate Request Message Format
- RFC 9055 Deterministic Networking Security Considerations
- RFC 9044 Using the AES-GMAC Algorithm with the Cryptographic Message Syntax