I-D Action: draft-halmir-mpls-ecn-04.txt

Internet-Draft draft-halmir-mpls-ecn-04.txt is now available.

   Title:   Explicit Congestion Notification Using MPLS Network Actions
   Authors: Joel Halpern
            Greg Mirsky
   Name:    draft-halmir-mpls-ecn-04.txt
   Pages:   9
   Dates:   2026-08-07

Abstract:

   It has been broadly demonstrated that user experience improvements
   for time-critical applications have not increased at the same pace as
   network throughput (i.e., the increased bandwidth does not result in
   a corresponding increase in the user experience).  Optimizing network
   latency rather than throughput can lead to a significantly improved
   user experience for time-critical applications.  Low Latency, Low
   Loss, and Scalable Throughput (L4S) technology, introduced in RFC
   9330, uses Explicit Congestion Notification (ECN) bits by marking
   packets suffering potential congestion in the network.  L4S operates
   as a congestion-control mechanism, using markers within the data
   packets to detect and promptly respond to congestion conditions.
   This feedback loop enables devices (e.g., endpoints such as client
   devices and server devices) to adjust data flow in real-time,
   preventing bottlenecks and ensuring smoother transmission.

   RFC 5129 describes a mechanism for supporting ECN in the
   Multiprotocol Label Switching (MPLS) data plane.  That mechanism is
   based on the codepoints that take part in the Traffic Class (TC)
   field and, thus, prevent the use of TC field for traffic
   differentiation.  This document defines how ECN can be supported in
   the MPLS data plane using the MPLS Network Actions technology.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-halmir-mpls-ecn/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-halmir-mpls-ecn-04.html

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-halmir-mpls-ecn-04

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


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