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                                                 Border Gateway Protocol (BGP) Well-known Communities

Created
        2004-01-16

Last Updated
        2026-09-22

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Registry Included Below

  • BGP Well-known Communities

BGP Well-known Communities

Reference
        [RFC 1997][RFC 8642]

Note

 Out of the total community space defined by RFC1997 of 0x00000000 -
 0xFFFFFFFF, the following ranges and values are reserved for communities
 that have global significance and their operations shall be implemented in
 any community-attribute-aware BGP speaker. The remainder of the space,
 specifically 0x00010000 - 0xFFFEFFFF, is for Private Use, with the first two
 octets encoding the autonomous system value as described by the RFC.


Available Formats
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        CSV

        Range         Registration Procedures
0x00000000-0x0000FFFF Reserved
0x00010000-0xFFFEFFFF Private Use
0xFFFF0000-0xFFFF8000 First Come First Served
0xFFFF8001-0xFFFFFFFF Standards Action

   Attribute Value            Attribute                           Reference
0x00000000-0x0000FFFF Reserved                   [RFC 1997]
0x00010000-0xFFFEFFFF Reserved for Private Use   [RFC 1997]
     0xFFFF0000       GRACEFUL_SHUTDOWN          [RFC 8326]
     0xFFFF0001       ACCEPT_OWN                 [RFC 7611]
     0xFFFF0002       ROUTE_FILTER_TRANSLATED_v4 [draft-l3vpn-legacy-rtc-00]
     0xFFFF0003       ROUTE_FILTER_v4            [draft-l3vpn-legacy-rtc-00]
     0xFFFF0004       ROUTE_FILTER_TRANSLATED_v6 [draft-l3vpn-legacy-rtc-00]
     0xFFFF0005       ROUTE_FILTER_v6            [draft-l3vpn-legacy-rtc-00]
     0xFFFF0006       LLGR_STALE                 [RFC 9494]
     0xFFFF0007       NO_LLGR                    [RFC 9494]
     0xFFFF0008       accept-own-nexthop         [draft-agrewal-idr-accept-own-nexthop-00]
     0xFFFF0009       Standby PE                 [RFC 9026]
     0xFFFF000A       DOWNGRADE                  [draft-ietf-grow-downgrade-bgp-community-00]
0xFFFF000B-0xFFFF0299 Unassigned
     0xFFFF029A       BLACKHOLE                  [RFC 7999]
0xFFFF029B-0xFFFFFF00 Unassigned
     0xFFFFFF01       NO_EXPORT                  [RFC 1997]
     0xFFFFFF02       NO_ADVERTISE               [RFC 1997]
     0xFFFFFF03       NO_EXPORT_SUBCONFED        [RFC 1997]
     0xFFFFFF04       NOPEER                     [RFC 3765]
0xFFFFFF05-0xFFFFFFFF Unassigned

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