[rfc-dist] BCP 178, RFC 6648 on Deprecating the "X-" Prefix and Similar Constructs in Application Protocols

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BCP 178
RFC 6648

Title: Deprecating the "X-" Prefix and
Similar Constructs in Application Protocols
Author: P. Saint-Andre, D. Crocker,
M. Nottingham
Status: Best Current Practice
Stream: IETF
Date: June 2012
Mailbox: psai...@cisco.com,
dcro...@bbiw.net,
mn...@mnot.net
Pages: 13
Characters: 28393
See Also: BCP0178

I-D Tag: draft-ietf-appsawg-xdash-05.txt

URL: http://www.rfc-editor.org/rfc/rfc6648.txt

Historically, designers and implementers of application protocols
have often distinguished between standardized and unstandardized
parameters by prefixing the names of unstandardized parameters with
the string "X-" or similar constructs. In practice, that convention
causes more problems than it solves. Therefore, this document
deprecates the convention for newly defined parameters with textual
(as opposed to numerical) names in application protocols.
This memo documents an Internet Best Current Practice.

This document is a product of the Applications Area Working Group Working
Group of the IETF.


BCP: This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.

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