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Message-ID-Hash: E3OVQBD3FSFDIW455EHKA236AUYG5XYN X-Message-ID-Hash: E3OVQBD3FSFDIW455EHKA236AUYG5XYN X-MailFrom: shares@ndzh.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-idr.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9rc6 Precedence: list Subject: =?utf-8?q?=5BIdr=5D_=5BCore=5D_draft-haas-idr-bgp-attribute-escape-04_-_WG_A?= =?utf-8?q?doption_call_=286/2_to_6/16/2026=29=2E?= List-Id: Inter-Domain Routing Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --_000_DM8PR08MB7413ADC1A461AFB182F8D69AB3122DM8PR08MB7413namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable This begins a 2-week WG adoption call for draft-haas-idr-bgp-attribute-esca= pe-04.txt (6/2/2026 to 6/16/2026). The author should respond to this email with an IPR statement. WG Members - please comment on this adoption, and in your comments mention = "support or no support. A few things from the abstract may be helpful in your reading of this draft= : 1) This is an informational draft. 2) The focus is "optional transitive attributes" for BGP that "escape" inad= vertently beyond intended scope 3) Jeff Haas feels this will help writers of new drafts correctly use these= optional transitive attributes. Cheerily, Sue Hares (Shepherd) ----------- Excerpts from Abstract text: A significant part of the success of [RFC4271] BGP is due to its ability to incrementally add new features to its Path Attributes when they are marked "optional transitive". Implementations that are ignorant of a feature for an unknown Path Attribute that are so marked will propagate BGP routes with such attributes. Unfortunately, this blind propagation of unknown Path Attributes may happen for features that are intended to be used in a limited scope. When such Path Attributes inadvertently are carried beyond that scope, it can lead to things such as unintended disclosure of sensitive information, or cause improper routing. In their worst cases, such propagation may be for malformed Path Attributes and lead to BGP session resets or crashes. This document calls such inadvertent propagation of BGP Path Attributes, "attribute escape". This document further describes some of the scenarios that leads to this behavior and makes recommendations on practices that may limit its impact. --_000_DM8PR08MB7413ADC1A461AFB182F8D69AB3122DM8PR08MB7413namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

This begins a 2-wee= k WG adoption call for draft-haas-idr-bgp-attribute-escape-04.txt (6/2/2026= to 6/16/2026).

 

The author should r= espond to this email with an IPR statement.  

 

WG Members - please= comment on this adoption, and in your comments mention “support or n= o support.

 

A few things from t= he abstract may be helpful in your reading of this draft:

 

1) This is an infor= mational draft.

2) The focus is = 220;optional transitive attributes” for BGP that “escape”= inadvertently beyond intended scope

3) Jeff Haas feels = this will help writers of new drafts correctly use these optional transitiv= e attributes.

 

Cheerily, Sue Hares=

(Shepherd)

 

-----------

 

Excerpts from Abstr= act text:

 

   A sign= ificant part of the success of [RFC4271] BGP is

   d= ue to its ability to incrementally add new features to its Path<= /span>

   Attrib= utes when they are marked "optional transitive".

   Implem= entations that are ignorant of a feature for an unknown Path

   Attrib= ute that are so marked will propagate BGP routes with such

   attrib= utes.

 

   Unfort= unately, this blind propagation of unknown Path Attributes may

   happen= for features that are intended to be used in a limited scope.

   When s= uch Path Attributes inadvertently are carried beyond that=

   scope,= it can lead to things such as unintended disclosure of

   sensit= ive information, or cause improper routing.  In their worst=

   cases,= such propagation may be for malformed Path Attributes and lead<= /span>

   to BGP= session resets or crashes.

 

   This d= ocument calls such inadvertent propagation of BGP Path

   Attrib= utes, "attribute escape".  This document further describes s= ome

   of the= scenarios that leads to this behavior and makes

   recomm= endations on practices that may limit its impact.

 

--_000_DM8PR08MB7413ADC1A461AFB182F8D69AB3122DM8PR08MB7413namp_--