Extension for Stateful PCE to Allow Optional Processing of Path Computation Element Communication Protocol Objects
RFC 9753, “Extension for Stateful PCE to Allow Optional Processing of Path Computation Element Communication Protocol Objects”, is a Proposed Standard document published in April 2025 by C. Li, H. Zheng, S. Litkowski. It updates RFC 8231. The canonical text is published by the RFC Editor.
Abstract
This document introduces a mechanism to mark some of the Path Computation Element Communication Protocol (PCEP) objects as optional during PCEP message exchange, so the stateful Path Computation Element (PCE) model can relax some constraints during path computation and setup. This document introduces this relaxation to stateful PCE, and it updates RFC 8231.
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 9753 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9752 Conveying Vendor-Specific Information in the Path Computation Element Communication Protocol Extensions for Stateful PCE
- RFC 9754 Extensions for Opening and Delegating Files in NFSv4.2
- RFC 9751 Closing the RTP Payload Format Media Types Registry
- RFC 9755 IMAP Support for UTF-8
- RFC 9750 The Messaging Layer Security Architecture
- RFC 9756 Update to the IANA Path Communication Element Protocol Numbers Registration Procedures and the Allowance of Experimental Error Codes
- RFC 9749 Use of Voluntary Application Server Identification in JSON Meta Application Protocol Web Push
- RFC 9757 Path Computation Element Communication Protocol Extensions for Native IP Networks