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Re: [MMUSIC] ICE-bis: pacing of ICE connectivity checks

Ari Keränen <ari.keranen@ericsson.com> Mon, 21 October 2013 12:05 UTC

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Date: Mon, 21 Oct 2013 15:04:14 +0300
From: Ari Keränen <ari.keranen@ericsson.com>
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To: Justin Uberti <juberti@google.com>
References: <526147C3.9040204@ericsson.com> <CAPvvaa+8osKGTNCS6RJywS9Bmf+RdbnChN=XqA9d+gLnBBAGow@mail.gmail.com> <5261704B.9090307@nostrum.com> <CAOJ7v-0dFsd1jxkaMMMAx36ezLex7tTWvy8XnDS8Ak26roz8Xw@mail.gmail.com>
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Cc: mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] ICE-bis: pacing of ICE connectivity checks
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On 10/18/13 9:34 PM, Justin Uberti wrote:
> FWIW, we are now doing trials to understand what is the absolute lower
> bound for ICE checks on today's internet (i.e. what is the minimum time
> to allow for a NAT to create a new UDP binding).

This sounds very interesting and something we should take into account. 
I hope you can share your results on this soon.


Cheers,
Ari

> On Fri, Oct 18, 2013 at 10:30 AM, Adam Roach <adam@nostrum.com
> <mailto:adam@nostrum.com>> wrote:
>
>     On 10/18/13 09:44, Emil Ivov wrote:
>>     It might be worth reminding exactly what these 50ms would be
>>     protecting us against
>
>     They're protecting us against RTP arriving at a rate of 20ms per packet.
>
>
>>     and why is it that we don't need to be
>>     protected against it in the case of RTP where 20ms is accepted as a
>>     fine default value.
>
>     Well, it's not. This is exactly why we ended up requiring ICE: it
>     ensures explicit consent before you start blowing media at someone.
>
>     See also
>     http://www.ietf.org/mail-archive/web/mmusic/current/msg04589.html
>
>     /a
>
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>     mmusic@ietf.org <mailto:mmusic@ietf.org>
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