RFC 1997: BGP Communities Attribute

This document describes an extension to BGP which may be used to pass additional information to both neighboring and remote BGP peers. [STANDARDS-TRACK]

Read RFC 1997 on the RFC Editor

Outgoing relationships (2 related RFCs)

Informative reference — RFC 1771: A Border Gateway Protocol 4 (BGP-4)
Informative reference — RFC 1965: Autonomous System Confederations for BGP

Incoming relationships (29 related RFCs)

Updated by, Normatively referenced by — RFC 7606: Revised Error Handling for BGP UPDATE Messages
Updated by — RFC 8642: Policy Behavior for Well-Known BGP Communities
Normatively referenced by — RFC 6514: BGP Encodings and Procedures for Multicast in MPLS/BGP IP VPNs
Normatively referenced by — RFC 4360: BGP Extended Communities Attribute
Normatively referenced by — RFC 6793: BGP Support for Four-Octet Autonomous System (AS) Number Space
Normatively referenced by — RFC 7947: Internet Exchange BGP Route Server
Normatively referenced by — RFC 9830: Advertising Segment Routing Policies in BGP
Normatively referenced by — RFC 7524: Inter-Area Point-to-Multipoint (P2MP) Segmented Label Switched Paths (LSPs)
Normatively referenced by — RFC 4384: BGP Communities for Data Collection
Normatively referenced by — RFC 7999: BLACKHOLE Community
Normatively referenced by — RFC 9494: Long-Lived Graceful Restart for BGP
Normatively referenced by — RFC 6769: Simple Virtual Aggregation (S-VA)
Normatively referenced by — RFC 7442: Carrying Protocol Independent Multicast - Sparse Mode (PIM-SM) in Any-Source Multicast (ASM) Mode Trees over Multipoint LDP (mLDP)
Normatively referenced by — RFC 7611: BGP ACCEPT_OWN Community Attribute
Normatively referenced by — RFC 8195: Use of BGP Large Communities
Informatively referenced by — RFC 4271: A Border Gateway Protocol 4 (BGP-4)
Informatively referenced by — RFC 3704: Ingress Filtering for Multihomed Networks
Informatively referenced by — RFC 2622: Routing Policy Specification Language (RPSL)
Informatively referenced by — RFC 7117: Multicast in Virtual Private LAN Service (VPLS)
Informatively referenced by — RFC 4110: A Framework for Layer 3 Provider-Provisioned Virtual Private Networks (PPVPNs)
Informatively referenced by — RFC 1998: An Application of the BGP Community Attribute in Multi-home Routing
Informatively referenced by — RFC 8092: BGP Large Communities Attribute
Informatively referenced by — RFC 2626: The Internet and the Millennium Problem (Year 2000)
Informatively referenced by — RFC 4264: BGP Wedgies
Informatively referenced by — RFC 7300: Reservation of Last Autonomous System (AS) Numbers
Informatively referenced by — RFC 7948: Internet Exchange BGP Route Server Operations
Informatively referenced by — RFC 2519: A Framework for Inter-Domain Route Aggregation
Informatively referenced by — RFC 9889: A Realization of Network Slices for 5G Networks Using Current IP/MPLS Technologies
Informatively referenced by — RFC 9951: Export of Delay Performance Metrics in IP Flow Information Export (IPFIX)