Skip to main content

On-time Forwarding with Non-work Conserving Stateless Core Fair Queuing
draft-ryoo-detnet-nscore-02

Document Type Replaced Internet-Draft (detnet WG)
Expired & archived
Authors Yeoncheol Ryoo , Jinoo Joung
Last updated 2025-12-05 (Latest revision 2025-10-16)
Replaced by draft-ietf-detnet-nscore
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Formats
Additional resources Mailing list discussion
Stream WG state Candidate for WG Adoption
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-detnet-nscore
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document specifies the framework and operational procedure for deterministic networking that guarantees maximum and minimum end-to- end latency bounds to flows. The solution has non-periodic, asynchronous, flow-level, non-work conserving, on-time, and rate- based functional characteristics, according to the taxonomy suggested by [draft-ietf-detnet-dataplane-taxonomy-03]. The packets are stored in the queue in ascending order of the ideal service start time, called Eligible Time (ET), and the ideal service completion time, called Finish Time (FT). The queued packets were forwarded between ET and FT in a non-work conserving manner. The ET and FT are calculated at the entrance node according to the packet size and rate of the flow. All subsequent core nodes are stateless and asynchronously compute ET and FT based on metadata received via packet headers. This mechanism is called non-work-preserving stateless fair queuing, which guarantees both E2E latency upper and lower bounds.

Authors

Yeoncheol Ryoo
Jinoo Joung

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)