[Idr] FW: New Version Notification for draft-wang-idr-dpf-00.txt

"Wang, Kevin" <kevin.wang@hpe.com> Mon, 01 December 2025 22:16 UTC

From: "Wang, Kevin" <kevin.wang@hpe.com>
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Subject: [Idr] FW: New Version Notification for draft-wang-idr-dpf-00.txt
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Date: Mon, 01 Dec 2025 22:30:34 -0000
X-Original-Date: Mon, 1 Dec 2025 22:15:53 +0000

Hi,

We have just published the 1st version of BGP Deterministic Path Forwarding (DPF) draft. It can partition a physical DC fabric into multiple logical fabrics, allowing deterministic path forwarding for IP packets. We appreciate feedback from the IDR group.

Thanks,
Kevin

From: internet-drafts@ietf.org <internet-drafts@ietf.org>
Date: Monday, December 1, 2025 at 4:50 PM
To: Lin, Wen <wen.lin@hpe.com>, Diptanshu Singh <diptanshu.singh@oracle.com>, Wang, Kevin <kevin.wang@hpe.com>, Subramaniam, Mahesh <mahesh-kumar.subramaniam@hpe.com>, Michal Styszynski <mlstyszynski@juniper.net>, Thomas Kampa <thomas.kampa@audi.de>, Lin, Wen <wen.lin@hpe.com>
Subject: New Version Notification for draft-wang-idr-dpf-00.txt

A new version of Internet-Draft draft-wang-idr-dpf-00.txt has been
successfully submitted by Kevin Wang and posted to the
IETF repository.

Name:     draft-wang-idr-dpf
Revision: 00
Title:    BGP Deterministic Path Forwarding (DPF)
Date:     2025-12-01
Group:    Individual Submission
Pages:    18
URL:      https://urldefense.com/v3/__https://www.ietf.org/archive/id/draft-wang-idr-dpf-00.txt__;!!NpxR!i5z_gkjM6uoMyd3tglsRb7ND_HRaq6Qt_M6sQYzPN7YC9-GpHRdhwRszNe4jX0bSAhUvfT6lfO3c_TrdHtzyoP_y$
Status:   https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-wang-idr-dpf/__;!!NpxR!i5z_gkjM6uoMyd3tglsRb7ND_HRaq6Qt_M6sQYzPN7YC9-GpHRdhwRszNe4jX0bSAhUvfT6lfO3c_TrdHlyAkOrb$
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HTMLized: https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draft-wang-idr-dpf__;!!NpxR!i5z_gkjM6uoMyd3tglsRb7ND_HRaq6Qt_M6sQYzPN7YC9-GpHRdhwRszNe4jX0bSAhUvfT6lfO3c_TrdHhmK7D5D$

Abstract:

   Modern data center (DC) fabrics typically employ Clos topologies with
   External BGP (EBGP) for plain IPv4/IPv6 routing.  While hop-by-hop
   EBGP routing is simple and scalable, it provides only a single best-
   effort forwarding service for all types of traffic.  This single
   best-effort service might be insufficient for increasingly diverse
   traffic requirements in modern DC environments.  For example, loss
   and latency sensitive AI/ML flows may demand stronger Service Level
   Agreements (SLA) than general purpose traffic.  Duplication schemes
   which are standardized through protocols such as Parallel Redundancy
   Protocol (PRP) require disjoint forwarding paths to avoid single
   points of failure.  Congestion avoidance may require more
   deterministic forwarding behavior.

   This document introduces BGP Deterministic Path Forwarding (DPF), a
   mechanism that partitions the physical fabric into multiple logical
   fabrics.  Flows can be mapped to different logical fabrics based on
   their specific requirements, enabling deterministic forwarding
   behavior within the data center.

The IETF Secretariat

[Idr] FW: New Version Notification for draft-wang… Wang, Kevin