R: general question

[Santoni Adriano]

Roni,
 
thank you for replying.
 
>> Are you asking if the media type registration need to be in the same document as the payload specification
 
Yes, exactly.
 
>> Look in RFC 4855 ........ there it says that registration and the payload specification can be different documents.
 
Indeed, but some may argue that RFC4855 is related to the RTP (Real-time Transport Protocol) case only. 
 
RFC 4288, which is mote general, seems to state the opposite at par. 4.10: 
 
    "Proposals for media types registered in the standards tree by the IETF itself MUST be published as RFCs."
 
So it is still not clear (to me) if RFC 4855 is an exception to the general rule, or not.
 
>> I am not sure that I know of such cases...
 
I think you are right. After a closer examination of several cases, I have always found a (sort of) media type registration in each of them.
 
Again, I wonder if a media type can be registered after the payload specification has been published; it may not always be clear, at the payload specifications' publication time, that a corresponding new media type is also needed.
 
Regards,
  Adriano
 


________________________________

Da: Roni Even [mailto:ron.even.tlv at gmail.com] 
Inviato: lunedì 9 marzo 2009 9.26
A: Santoni Adriano; ietf-types at alvestrand.no
Oggetto: RE: general question



Adriano,

I am not sure I fully understand your question. Are you asking if the media type registration need to be in the same document as the payload specification.

Look in RFC 4855 (http://tools.ietf.org/html/rfc4855)  for published specification, there it says that registration and the payload specification can be different documents.

I am not sure that I know of such cases. In some cases there are RFC that update the registration for example by adding parameters. 

Regards

Roni Even

 

From: ietf-types-bounces at alvestrand.no [mailto:ietf-types-bounces at alvestrand.no] On Behalf Of Santoni Adriano
Sent: Monday, March 09, 2009 9:05 AM
To: ietf-types at alvestrand.no
Subject: general question

 

Hello, 

I have the following doubt, and would like someone to enlighten me. 

Is it mandatory that a media type registration be included in the RFC that defines such media type? 

It seems to me, if I am not mistaken, that there are several media types defined in RFCs which does not contain an explicit media type registration....

TIA, 
  Adriano 

 

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