BGP Extended Community Registries Update
updates
Extracted elements (5)
Type values 0x80, 0x81, and 0x82 in the BGP Transitive Extended Community Types registry were originally marked as 'Experimental Use', but they have been actively used in RFC 5575 and RFC 7674 (both obsoleted by RFC 8955) for Flowspec. Their primary use is non-experimental, making the 'Experimental Use' label misleading.
BGP Transitive Extended Community type values 0x80, 0x81, and 0x82 are defined as Generic Transitive Extended Community (Parts 1, 2, and 3). Sub-types for each are defined in their respective sub-type registries. The range 0x00-0x3F and 0x80-0x82 use First Come First Served allocation; 0x83-0x8F remain experimental; 0x90-0xBF require Standards Action.
The 'BGP Transitive Extended Community Types' registry is updated so that type values 0x80-0x82 are renamed to 'Generic Transitive Extended Community', 'Generic Transitive Extended Community Part 2', and 'Generic Transitive Extended Community Part 3' respectively, with RFC 9184 added as reference. Registration procedures for 0x80-0x82 are changed from 'Experimental Use' to 'First Come First Served'; 0x83-0x8F remain reserved for Experimental Use.
The IANA registry formerly titled 'Generic Transitive Experimental Use Extended Community Part 3 Sub-Types' is renamed to 'Generic Transitive Extended Community Part 3 Sub-Types'. RFC 9184 is added as a reference.
There are no direct security considerations arising from this document, which makes only administrative updates to IANA registry entries and registration procedures.