Re: [MMUSIC] Process for draft-salgueiro-mmusic-image-iana-registration
Gonzalo Salgueiro <gsalguei@cisco.com> Fri, 20 May 2011 08:56 UTC
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From: Gonzalo Salgueiro <gsalguei@cisco.com>
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Date: Fri, 20 May 2011 04:56:14 -0400
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To: Yasubumi CHIMURA <chimura730@oki.com>, "Miguel A. Garcia" <Miguel.A.Garcia@ericsson.com>
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Cc: OKUMURA Shinji <shinji.okumura@softfront.jp>, mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] Process for draft-salgueiro-mmusic-image-iana-registration
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Yasu & Miguel - I also completely agree with Miguel's assessment that there is no value in describing the packet format that is already well defined in T.38. I have submitted an -02 version capturing the comments from this discussion. Please provide any feedback regarding the latest version of this draft. Regards, Gonzalo On May 20, 2011, at 12:51 AM, Yasubumi CHIMURA wrote: > Hi Miguel, > > Thank you for your support about Draft of "image" for T.38 SDP. > I agree your opinion. > > Best Regards, > > Yasu Chimura > -----Original Message----- > From: Miguel A. Garcia [mailto:Miguel.A.Garcia@ericsson.com] > Sent: Thursday, May 19, 2011 4:30 PM > To: Yasubumi CHIMURA > Cc: 'DRAGE, Keith (Keith)'; 'mmusic'; 'Flemming Andreasen'; 'Noriyuki SATO'; > 'OKUMURA Shinji'; Gonzalo Salgueiro > Subject: Re: [MMUSIC] Process for > draft-salgueiro-mmusic-image-iana-registration > > Hi Yasu, > > My opinions, as an individual, below. > > On 18/05/2011 13:54, Yasubumi CHIMURA wrote: >> Hi Miguel, >> >> I'm Chimura from OKI-J and CIAJ. >> >> I have one comment about draft-salgueiro-mmusic-image-iana-registration. >> >> RFC4566 described the procedure following; >> RFC4566 p24 >> The media type registration SHOULD define the packet >> format for use with UDP transport. >> ... >> For media using other transport protocols, the<fmt> field is >> protocol specific. Rules for interpretation of the<fmt> sub- >> field MUST be defined when registering new protocols (see Section >> 8.2.2). >> >> Therefore, if it use without UDP transport in m=image, should be describe >> the packet format. >> >> And, if it use with UDP transport in m=image, should be describe the >> definition of fmt and the attribution(a=) of SDP. > > I get the point, I belive. But I doubt we can just define a single packet > format for sending any type of "image" media types. I guess we should say > that T38 is one of the possible packet formats, and the full packet > format description when using UDP transport is described in ITU-T T.38 > recommendation. If in the future, there are additional formats of "image" > with UDP, then a different specification should describe the packet format. > > Also, notice that T38 allows several transport protocols, including TCP, > UDP, UDPTL, RTP. > > My suggestion is that the registration of the media type "image" > delegates the packet format description over UDP to the media format > description. Also, the draft should say that, when T38 is the media > format, ITU-T T.38 contains the packet format description. > > BR, > > Miguel >> >> Best Regards, >> >> Yasu Chimura >> -----Original Message----- >> From: Miguel A. Garcia [mailto:Miguel.A.Garcia@ericsson.com] >> Sent: Tuesday, May 10, 2011 2:51 PM >> To: DRAGE, Keith (Keith) >> Cc: mmusic; Flemming Andreasen; 'Yasubumi CHIMURA' >> Subject: Re: [MMUSIC] Process for >> draft-salgueiro-mmusic-image-iana-registration >> >> Hi Keith, >> >> An individual document will not go through an official WGLC, but I guess >> the working group can always get a closer look at it before the author >> submitting it as an individual submission. >> >> /Miguel >> >> On 09/05/2011 17:50, DRAGE, Keith (Keith) wrote: >>> If you are going to WGLC this document, surely you might as well make > this >> a working group draft. >>> >>> If it is AD sponsored, then the first question is sufficient - look at it >> now, and then it goes for a four week IETF last call. >>> >>> Keith >>> >>>> -----Original Message----- >>>> From: mmusic-bounces@ietf.org [mailto:mmusic-bounces@ietf.org] On Behalf >>>> Of Miguel A. Garcia >>>> Sent: 09 May 2011 08:04 >>>> To: mmusic >>>> Cc: Flemming Andreasen; 'Yasubumi CHIMURA' >>>> Subject: [MMUSIC] Process for draft-salgueiro-mmusic-image-iana- >>>> registration >>>> >>>> In relation with the registration of the SDP 'image' media type, we are >>>> going to try to expedite this draft, since it is a very simple missing >>>> registration. >>>> >>>> The idea is to progress the draft as an individual submission, >>>> AD-sponsored draft. So, the chairs would like the working group to take > a >>>> closer look at it (it is a short one), so that we can go to WGLC in a >>>> short time frame. >>>> >>>> So please, send comments as soon as possible. Do not wait to the WGLC. >>>> >>>> BR, >>>> >>>> Miguel >>>> -- >>>> Miguel A. Garcia >>>> +34-91-339-3608 >>>> Ericsson Spain >>>> _______________________________________________ >>>> mmusic mailing list >>>> mmusic@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mmusic >> > > -- > Miguel A. Garcia > +34-91-339-3608 > Ericsson Spain
- [MMUSIC] Process for draft-salgueiro-mmusic-image… Miguel A. Garcia
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… DRAGE, Keith (Keith)
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Miguel A. Garcia
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Yasubumi CHIMURA
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Miguel A. Garcia
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Yasubumi CHIMURA
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Gonzalo Salgueiro
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Kevin P. Fleming
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Gonzalo Salgueiro
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Kevin P. Fleming
- Re: [MMUSIC] Process for draft-salgueiro-mmusic-i… Gonzalo Salgueiro