Update to the IANA Path Communication Element Protocol Numbers Registration Procedures and the Allowance of Experimental Error Codes
RFC 9756, “Update to the IANA Path Communication Element Protocol Numbers Registration Procedures and the Allowance of Experimental Error Codes”, is a Proposed Standard document published in March 2025 by D. Dhody, A. Farrel. It updates RFC 5440, RFC 8231, RFC 8233, RFC 8281, RFC 8623, RFC 8664, RFC 8685, RFC 8697, RFC 8733, RFC 8745, RFC 8779, RFC 8780, RFC 8800, RFC 8934, RFC 9050, RFC 9059, RFC 9168, RFC 9357, RFC 9504, RFC 9603, RFC 9604. The canonical text is published by the RFC Editor.
Abstract
This document updates the registration procedure within the IANA "Path Computation Element Protocol (PCEP) Numbers" registry group. This specification changes some of the registries with Standards Action to IETF Review as defined in RFC 8126 and thus updates RFCs 8231, 8233, 8281, 8623, 8664, 8685, 8697, 8733, 8745, 8779, 8780, 8800, 8934, 9050, 9059, 9168, 9357, 9504, 9603, and 9604.
Designating "experimental use" sub-ranges within codepoint registries is often beneficial for protocol experimentation in controlled environments. Although the registries for PCEP messages, objects, and TLV types have sub-ranges assigned for Experimental Use, the registry for PCEP Error-Types and Error-values currently does not. This document updates RFC 5440 by designating a specific range of PCEP Error-Types for Experimental Use.
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 9756 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9755 IMAP Support for UTF-8
- RFC 9757 Path Computation Element Communication Protocol Extensions for Native IP Networks
- RFC 9754 Extensions for Opening and Delegating Files in NFSv4.2
- RFC 9758 Updates to the 'ipn' URI Scheme
- RFC 9753 Extension for Stateful PCE to Allow Optional Processing of Path Computation Element Communication Protocol Objects
- RFC 9759 Unified Time Scaling for Temporal Coordination Frameworks
- RFC 9752 Conveying Vendor-Specific Information in the Path Computation Element Communication Protocol Extensions for Stateful PCE
- RFC 9760 Enterprise Profile for the Precision Time Protocol with Mixed Multicast and Unicast Messages