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Re: [MMUSIC] ICE aggressive nomination problem

"Pal Martinsen (palmarti)" <palmarti@cisco.com> Mon, 04 November 2013 14:52 UTC

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From: "Pal Martinsen (palmarti)" <palmarti@cisco.com>
To: Ari Keränen <ari.keranen@ericsson.com>
Thread-Topic: [MMUSIC] ICE aggressive nomination problem
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Date: Mon, 04 Nov 2013 14:52:46 +0000
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Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] ICE aggressive nomination problem
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On 04 Nov 2013, at 04:38 am, Ari Keränen <ari.keranen@ericsson.com> wrote:

> Hi Emil,
> 
> On 11/3/13 3:33 PM, Emil Ivov wrote:
>> Unless you maintain them, your candidates will timeout even with regular ICE.
>> 
>> If you do maintain them then you have data.
> 
> If you don't have "real" data to send, by RFC5245 you would send 
> keepalive traffic (STUN Binding Indications, RTP No-Ops, etc.). So in 
> this case you should consider receiving any of them on a not-selected 
> candidate pair as a sign to change using that candidate pair, right?
> 

The simple use case here is presentation sharing. If you just plan to receive a presentation you will never send any data. (Other than keepalives)

Other protocols such as BFCP also sends very little data, but there are some initial HELOs there.

.-.
Pål-Erik


> I see at least some security issues here, but actually those apply also 
> to non-secure application layer data.
> 
> 
> Cheers,
> Ari
> 
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