[New-wg-docs] I-D Action: draft-ietf-grow-downgrade-bgp-community-00.txt

internet-drafts@ietf.org Mon, 21 September 2026 15:16 UTC

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Date: Mon, 21 Sep 2026 08:16:40 -0700
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Subject: [New-wg-docs] I-D Action: draft-ietf-grow-downgrade-bgp-community-00.txt
Archived-At: <https://mailarchive.ietf.org/arch/msg/new-wg-docs/5YKh_8NFqswmWXfGn8yOJDfHStY>

Internet-Draft draft-ietf-grow-downgrade-bgp-community-00.txt is now
available. It is a work item of the Global Routing Operations (GROW) WG of the
IETF.

   Title:   The DOWNGRADE BGP Community for Denial-of-Service Attack Mitigation
   Authors: Job Snijders
            Saku Ytti
   Name:    draft-ietf-grow-downgrade-bgp-community-00.txt
   Pages:   9
   Dates:   2026-09-21

Abstract:

   This document outlines a method to mitigate Denial of Service (DoS)
   attacks by using a well-known BGP community named "DOWNGRADE" as
   signal to neighboring networks to treat traffic destined towards
   "DOWNGRADE" tagged IP prefixes with low precedence.  The "downgrade"
   strategy offers an appealing alternative to Remote Triggered
   Blackhole (RTBH) filtering, because RTBH filtering completes the DoS
   attack and hampers the defender's ability to monitor whether the
   attack is still ongoing.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-grow-downgrade-bgp-community/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-grow-downgrade-bgp-community-00.html

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

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