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Re: [Ice] Re-nomination and candidate pair switching in RFC 5245bis - PROPOSAL

Bernard Aboba <bernard.aboba@gmail.com> Wed, 30 August 2017 18:23 UTC

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From: Bernard Aboba <bernard.aboba@gmail.com>
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Date: Wed, 30 Aug 2017 14:23:41 -0400
Cc: Christer Holmberg <christer.holmberg@ericsson.com>, "ice@ietf.org" <ice@ietf.org>
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To: Peter Thatcher <pthatcher@google.com>
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Subject: Re: [Ice] Re-nomination and candidate pair switching in RFC 5245bis - PROPOSAL
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On Aug 30, 2017, at 12:28 PM, Peter Thatcher <pthatcher@google.com> wrote:
> 
>> On Wed, Aug 30, 2017 at 9:26 AM Peter Thatcher <pthatcher@google.com> wrote:
>> As far as "just enough" so that it isn't a hindrance: that's why I wanted to say that agents *may* switch.  It allows a renomination in the future.  Saying they MUST NOT is a hindrance.  I would be fine if the *may* requires negotiation.  That's what https://www.ietf.org/archive/id/draft-thatcher-ice-renomination-01.txt does: it negotiates "renomination".  And that's what Chrome's implementation of WebRTC does. 

[BA] It seems like the document would at least need to talk about consent to include a "may". As it is, negotiating "ice2" only means that you're talking to a slightly refurbished RFC 5245 implementation. That's like the difference between a new car with driver assist (a modern WebRTC ICE implementation with Trickle) and an Edsel that's been waxed and given an oil change.

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