Re: [apps-discuss] I-D Action: draft-ietf-appsawg-xdash-02.txt

Henning Schulzrinne <hgs@cs.columbia.edu> Mon, 24 October 2011 16:54 UTC

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From: Henning Schulzrinne <hgs@cs.columbia.edu>
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Subject: Re: [apps-discuss] I-D Action: draft-ietf-appsawg-xdash-02.txt
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The same problem description applies to P- headers in SIP. (They have been deprecated as well.)

Henning

On Oct 24, 2011, at 12:19 PM, internet-drafts@ietf.org wrote:

> A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Applications Area Working Group Working Group of the IETF.
> 
> 	Title           : Deprecating Use of the &quot;X-&quot; Prefix in Application Protocols
> 	Author(s)       : Peter Saint-Andre
>                          D. Crocker
>                          Mark Nottingham
> 	Filename        : draft-ietf-appsawg-xdash-02.txt
> 	Pages           : 12
> 	Date            : 2011-10-24
> 
>   Historically, designers and implementers of application protocols
>   have often distinguished between &quot;standard&quot; and &quot;non-standard&quot;
>   parameters by prefixing the latter with the string &quot;X-&quot; or similar
>   constructions.  In practice, this convention causes more problems
>   than it solves.  Therefore, this document deprecates the &quot;X-&quot;
>   convention for most application protocol parameters.
> 
> 
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-appsawg-xdash-02.txt
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-ietf-appsawg-xdash-02.txt
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