Re: [MMUSIC] Question about 3388bis-04

"Jean-Francois Mule" <jf.mule@cablelabs.com> Fri, 20 November 2009 14:38 UTC

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Date: Fri, 20 Nov 2009 07:38:28 -0700
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Thread-Topic: [MMUSIC] Question about 3388bis-04
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From: Jean-Francois Mule <jf.mule@cablelabs.com>
To: "Ali C. Begen (abegen)" <abegen@cisco.com>, Gonzalo.Camarillo@ericsson.com
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Subject: Re: [MMUSIC] Question about 3388bis-04
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Ali asked:
> The new version has a "SHOULD" language saying that:
> 
> In Section 12:
> 
>    o  Token to be used within the group attribute.  This token may
> be of
>       any length, but SHOULD be no more than four characters long.
> 
> Any particular reason why this was added?

I screened the IESG comments recently received on the draft since I
recalled some comments that led to the reference of RFC 5234 and 4566
for the definition of token in aBNF.  I did not find any justifications
though for recommending the token length be no more than 4 chars.

One reason might be to limit the variable type to optimize the
implementations but that seems far reaching given the SDP parsers I
know.

Jean-Francois.