Considerations on the Extensibility of IETF protocols

Document Type Expired Internet-Draft (iesg) - resurrect requested by Alex Zinin
Authors Scott Bradner  , Thomas Narten 
Last updated 2007-01-15 (latest revision 2004-06-07)
Stream Internet Engineering Task Force (IETF)
Intended RFC status Best Current Practice
Expired & archived
plain text pdf htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired (IESG: Dead)
Action Holders
Consensus Boilerplate Unknown
Telechat date
Responsible AD Brian Carpenter
IESG note Replaced by draft-carpenter-protocol-extensions published as RFC 4775.
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document discusses 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 need to be reviewed by the larger IETF community. The document also recommends that major extensions to IETF protocols only take place through normal IETF processes or in coordination with the IETF.


Scott Bradner (
Thomas Narten (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)