Recommendation for Not Using AS_SET and AS_CONFED_SET in BGP
RFC 6472, “Recommendation for Not Using AS_SET and AS_CONFED_SET in BGP”, is a Best Current Practice document published in December 2011 by W. Kumari, K. Sriram. It has been obsoleted by RFC 9774 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This document recommends against the use of the AS_SET and AS_CONFED_SET types of the AS_PATH in BGPv4. This is done to simplify the design and implementation of BGP and to make the semantics of the originator of a route more clear. This will also simplify the design, implementation, and deployment of ongoing work in the Secure Inter-Domain Routing Working Group. This memo documents an Internet Best Current Practice.
What “Best Current Practice” means
Documents the IETF community's recommended operational or procedural practice rather than a protocol specification.
The canonical text of RFC 6472 is hosted at rfc-editor.org. Available in TXT,HTML.
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