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Re: [Ice] Benjamin Kaduk's Yes on draft-ietf-ice-trickle-18: (with COMMENT)

Peter Saint-Andre <stpeter@mozilla.com> Thu, 29 March 2018 21:51 UTC

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From: Peter Saint-Andre <stpeter@mozilla.com>
To: Benjamin Kaduk <kaduk@mit.edu>, The IESG <iesg@ietf.org>
Cc: draft-ietf-ice-trickle@ietf.org, Nils Ohlmeier <nohlmeier@mozilla.com>, ice-chairs@ietf.org, ice@ietf.org
References: <152235718235.4397.6159667533096871849.idtracker@ietfa.amsl.com> <a4962891-4fac-782c-b868-1f9bd01f357c@mozilla.com>
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Date: Thu, 29 Mar 2018 15:51:39 -0600
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Subject: Re: [Ice] Benjamin Kaduk's Yes on draft-ietf-ice-trickle-18: (with COMMENT)
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Correction inline!

>> Thanks for updating per the secdir review about the in-order requirement!
>> However, we currently have language about transmitting candidates/end-of-candidates
>> "not more than once", but we kind of do want exactly-once semantics for
>> end-of-candidates, unless ICE terminates normally prior to that.
>> Is there a good way to phrase that more clearly?
> 
> Not-more-than-once and exactly-once are indeed different things, with
> the latter being more difficult to accomplish. Do we kind of want to
> impose stricter requirements on implementations and using protocols, or
> do we really want to? ;-)

Sorry, I mis-read your comment. By "not-more-than-once" I'm pretty sure
we meant "exactly-once" (I suppose the former includes not delivering
the data at all, but delivery is implied by the text "MUST deliver ...
not more than once" in §8). So this is an editorial matter, not a
technical matter as I see it. (It's the difference between exactly once
and at least once that I was thinking about.)

Peter

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