RFC 9774: Deprecation of AS_SET and AS_CONFED_SET in BGP
RFC 4271: A Border Gateway Protocol 4 (BGP-4)
RFC 5065: Autonomous System Confederations for BGP
RFC 6472: Recommendation for Not Using AS_SET and AS_CONFED_SET in BGP
Deprecation of AS_SET and AS_CONFED_SET in BGP