Extensible Prioritization Scheme for HTTP
RFC 9218, “Extensible Prioritization Scheme for HTTP”, is a Proposed Standard document published in June 2022 by K. Oku, L. Pardue. The canonical text is published by the RFC Editor.
Abstract
This document describes a scheme that allows an HTTP client to communicate its preferences for how the upstream server prioritizes responses to its requests, and also allows a server to hint to a downstream intermediary how its responses should be prioritized when they are forwarded. This document defines the Priority header field for communicating the initial priority in an HTTP version-independent manner, as well as HTTP/2 and HTTP/3 frames for reprioritizing responses. These share a common format structure that is designed to provide future extensibility.
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 9218 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9217 Current Open Questions in Path-Aware Networking
- RFC 9219 S/MIME Signature Verification Extension to the JSON Meta Application Protocol
- RFC 9216 S/MIME Example Keys and Certificates
- RFC 9220 Bootstrapping WebSockets with HTTP/3
- RFC 9221 An Unreliable Datagram Extension to QUIC
- RFC 9215 Using GOST R 34.10-2012 and GOST R 34.11-2012 Algorithms with the Internet X.509 Public Key Infrastructure
- RFC 9222 Guidelines for Autonomic Service Agents
- RFC 9214 OSPFv3 Code Point for MPLS LSP Ping