Procedures for protocol extensions and variations
This document discusses procedural issues related to the extensibility of IETF protocols, including when it is reasonable to extend IETF protocols with little or no review, and when extensions or variations need to be reviewed by the larger IETF community. Experience with IETF protocols has shown that extensibility of protocols without early IETF review can cause problems. The document also recommends that major extensions to or variations of IETF protocols only take place through normal IETF processes or in coordination with the IETF. This draft replaces draft-iesg-vendor-extensions.