Re: [MMUSIC] draft-uberti-mmusic-nombis and (D)TLS

Alas, an ICE ufrag doesn't uniquely identify an ICE virtual connection;
with ICE forking you can have N virtual connections from the same ufrag.

A lfrag:rfrag tuple is closer, but even this does not work, because a) an
ICE restart changes lfrag/rfrag without invalidating the connection, and b)
because a ufrag can be shared across multiple m= lines (and thereby ICE
connections).

The closest thing is m-line, keeping in mind that bundled m-lines use the
virtual connection of the m-line onto which they are bundled.

On Sun, Mar 22, 2015 at 6:10 PM, Roman Shpount <roman@telurix.com> wrote:

> On Sun, Mar 22, 2015 at 8:08 PM, Christer Holmberg <
> christer.holmberg@ericsson.com> wrote:
>
>>
>> What was discussed in RTCWEB was to, instead of binding a DTLS connection
>> to a 5-tuple, bind it to a "virtual connection". A "virtual connection"
>> would be the set of all candidate pairs associated with a.... something.
>>
>> Whether "something" is an m- line, a BUNDLE group, a complete SDP, or
>> something else, hasn't been discussed - as far as I remember (please
>> correct me if I'm wrong).
>>
>>
> I was proposing that "something" is ICE ufrag, i.e. all 5-tuples for which
> a ICE/STUN bind request with the particular ufrag is received gets
> associated with the same "virtual" connection.
> _____________
> Roman Shpount
>
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