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Re: [MMUSIC] WGLC for draft-ietf-mmusic-duplication-grouping-01

Ari Keränen <ari.keranen@ericsson.com> Wed, 24 April 2013 21:08 UTC

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Date: Thu, 25 Apr 2013 00:07:55 +0300
From: Ari Keränen <ari.keranen@ericsson.com>
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To: "Ali C. Begen (abegen)" <abegen@cisco.com>
References: <515F03EF.1030100@ericsson.com> <51770AE0.4030800@ericsson.com> <C15918F2FCDA0243A7C919DA7C4BE9940D00FB64@xmb-aln-x01.cisco.com>
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Cc: "<draft-ietf-mmusic-duplication-grouping@tools.ietf.org>" <draft-ietf-mmusic-duplication-grouping@tools.ietf.org>, mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] WGLC for draft-ietf-mmusic-duplication-grouping-01
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On 4/24/13 9:36 AM, Ali C. Begen (abegen) wrote:
>
> On Apr 24, 2013, at 7:27 AM, Ari Keränen <ari.keranen@ericsson.com> wrote:
>>    Alternatively, one could be more explicit
>>    and insert an "a=duplication-delay:0" line before the "a=mid:Ch1"
>>    line.
>>
>> This is quite vague. Could add an RFC2119 SHOULD/MUST/RECOMMEND here (and same in the next section) and tell when/why (not) to do it.
>>
>
> I think a MUST would be too strong since it is not really a must. I also think making it a SHOULD would require us to explain when it could be ignored (which is really any time since nothing will break if it is ignored). Putting it would be more like informational purposes. I think "MAY" would be appropriate here.
>
> Would that address your concern?

I think the important part is to tell why you should (or may) put it 
there. Is it, e.g., informational for a human reading the SDP or is 
there some corner case where this would help?

If there's no real value adding it there, perhaps it's better to not 
talk about this alternative at all since it will potentially just 
results in unnecessary differences how it ends up implemented.


Cheers,
Ari

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