Skip to main content

Deprecation of AS_SET and AS_CONFED_SET in BGP

Document Type Replaced Internet-Draft (candidate for idr WG)
Authors Warren "Ace" Kumari , Kotikalapudi Sriram
Last updated 2019-08-16 (Latest revision 2019-08-05)
Replaced by draft-ietf-idr-deprecate-as-set-confed-set
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
Stream WG state Call For Adoption By WG Issued
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-idr-deprecate-as-set-confed-set
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


BCP 172 (i.e., RFC 6472) recommends not using AS_SET and AS_CONFED_SET in Border Gateway Protocol (BGP). This document updates RFC 4271 and proscribes the use of the AS_SET and AS_CONFED_SET types of path segments in the AS_PATH. This is done to simplify the design and implementation of BGP and to make the semantics of the originator of a route clearer. This will also simplify the design, implementation, and deployment of various BGP security mechanisms.


Warren "Ace" Kumari
Kotikalapudi Sriram

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)