Conveying Vendor-Specific Information in the Path Computation Element Communication Protocol Extensions for Stateful PCE
RFC 9752, “Conveying Vendor-Specific Information in the Path Computation Element Communication Protocol Extensions for Stateful PCE”, is a Proposed Standard document published in April 2025 by C. Li, H. Zheng, S. Sivabalan, S. Sidor, Z. Ali. It updates RFC 7470. The canonical text is published by the RFC Editor.
Abstract
This document specifies extensions to the Path Computation Element Communication Protocol (PCEP) that enable the inclusion of vendor-specific information in stateful Path Computation Element (PCE) operations. These extensions allow vendors to incorporate proprietary data within PCEP messages, facilitating enhanced network optimization and functionality in environments requiring vendor-specific features. The extensions maintain compatibility with existing PCEP implementations and promote interoperability across diverse network deployments. RFC 7470 defines a facility to carry vendor-specific information in stateless PCEP messages. This document extends this capability for the stateful PCEP messages.
This document updates RFC 7470 to specify that Enterprise Numbers are managed through the "Private Enterprise Numbers (PENs)" registry.
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 9752 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9751 Closing the RTP Payload Format Media Types Registry
- RFC 9753 Extension for Stateful PCE to Allow Optional Processing of Path Computation Element Communication Protocol Objects
- RFC 9750 The Messaging Layer Security Architecture
- RFC 9754 Extensions for Opening and Delegating Files in NFSv4.2
- RFC 9749 Use of Voluntary Application Server Identification in JSON Meta Application Protocol Web Push
- RFC 9755 IMAP Support for UTF-8
- RFC 9748 Updating the NTP Registries
- RFC 9756 Update to the IANA Path Communication Element Protocol Numbers Registration Procedures and the Allowance of Experimental Error Codes