Policy Behavior for Well-Known BGP Communities
RFC 8642, “Policy Behavior for Well-Known BGP Communities”, is a Proposed Standard document published in August 2019 by J. Borkenhagen, R. Bush, R. Bonica, S. Bayraktar. It updates RFC 1997. The canonical text is published by the RFC Editor.
Abstract
Well-known BGP communities are manipulated differently across various current implementations, resulting in difficulties for operators. Network operators should deploy consistent community handling across their networks while taking the inconsistent behaviors from the various BGP implementations into consideration. This document recommends specific actions to limit future inconsistency: namely, BGP implementors must not create further inconsistencies from this point forward. These behavioral changes, though subtle, actually update RFC 1997.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8642 is hosted at rfc-editor.org. Available in TXT,HTML.
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