RIPE NCC This document defines a YANG data model for the structured specification of BGP communities. The model provides operators with a way to publish their locally defined BGP communities in a standardized format. Two YANG modules are defined in this document. The first is designed for stand-alone usage. The second is used to augment the "ietf-bgp" YANG module[I-D.ietf-idr-bgp-model] with BGP community annotations. Additionally, this document provides an optional discovery mechanism based on publishing of community definition locations through the Resource Public Key Infrastructure (RPKI).