[Detnet] I-D Action: draft-joung-detnet-stateless-fair-queuing-09.txt

internet-drafts@ietf.org Mon, 30 March 2026 09:52 UTC

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Subject: [Detnet] I-D Action: draft-joung-detnet-stateless-fair-queuing-09.txt
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Internet-Draft draft-joung-detnet-stateless-fair-queuing-09.txt is now
available. It is a work item of the Deterministic Networking (DETNET) WG of
the IETF.

   Title:   Latency Guarantee with Stateless Fair Queuing
   Authors: Jinoo Joung
            Jeong-dong Ryoo
            Taesik Cheung
            Yizhou Li
            Peng Liu
   Name:    draft-joung-detnet-stateless-fair-queuing-09.txt
   Pages:   20
   Dates:   2026-03-30

Abstract:

   This document specifies the implementation details for the framework
   specified in ITU-T Y.3129 [Y.3129] and ITU-T Y.3148 [Y.3148].  The
   framework guarantees end-to-end (E2E) latency bounds to flows.  The
   schedulers in core nodes do not need to maintain flow states.
   Instead, the entrance node of a flow marks an ideal service
   completion time according to a fluid model, called Finish Time (FT),
   of a packet in the packet header.  The subsequent core nodes update
   the FT by adding a delay factor, which is a function of the flow and
   the nodes.  The packets in the queue of the scheduler are served in
   the ascending order of FT.  This mechanism is called the stateless
   fair queuing.  The result is that flows are isolated from each other
   almost perfectly.  The latency bound of a flow depends only on the
   flow's intrinsic parameters such as the maximum burst size and the
   service rate, except the link capacities and the maximum packet
   length among other flows sharing each output link with the flow.
   This document specifies the metadata, formats of metadata, the
   admission control procedure, and an approximation of stateless fair
   queuing implemented via a strict priority (SP) scheduler.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-joung-detnet-stateless-fair-queuing/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-joung-detnet-stateless-fair-queuing-09

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-joung-detnet-stateless-fair-queuing-09

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts

[Detnet] I-D Action: draft-joung-detnet-stateless… internet-drafts