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Re: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 09 March 2015 16:22 UTC

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Date: Mon, 09 Mar 2015 12:22:26 -0400
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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To: Iñaki Baz Castillo <ibc@aliax.net>
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Subject: Re: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples
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On 3/9/15 11:51 AM, Iñaki Baz Castillo wrote:
> 2015-03-09 15:16 GMT+01:00 Paul Kyzivat <pkyzivat@alum.mit.edu>:
>> To date ICE hasn't considered this to be a general multipath transport
>> problem - just a way to negotiate a single path transport. But the
>> discussion here is showing flaws in that approach.
>
> I don't think there are flaws. The fact is that in certain ICE usages
> (aggressive nomination) it may perfectly happen that media (say RTP or
> DTLS) can be sent over different 5-tuples at the ~same time. IMHO
> that's not a flaw to fix, but something that we must assume as it is.

I didn't mean that it is a flaw to be discussing this in the context of 
RTCWEB.

What I meant is that it is a flaw that the more general nature of this 
as an aspect of multipath transports hasn't been noticed. (Or maybe it 
has, and I'm just not well informed. I don't follow the transport area.)

	Thanks,
	Paul

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