Border Gateway Protocol (BGP) Well-known Communities

Created

2004-01-16

Last Updated

2026-09-22

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• 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.
    

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