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Re: [MMUSIC] DTLS-SDP: connection, dtls_connection, or dtls_ufrag?

Christer Holmberg <christer.holmberg@ericsson.com> Tue, 13 October 2015 18:24 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Paul Kyzivat <pkyzivat@alum.mit.edu>, "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] DTLS-SDP: connection, dtls_connection, or dtls_ufrag?
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Date: Tue, 13 Oct 2015 18:24:17 +0000
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Subject: Re: [MMUSIC] DTLS-SDP: connection, dtls_connection, or dtls_ufrag?
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Hi,

> I think there has been a screw up, in that the IANA SDP attributes registry has not been updated to reference these as uses of the attribute.

I guess we can fix that as part of the DTLS-SDP work.

Regards,

Christer

On 10/2/15 2:20 AM, Christer Holmberg wrote:
> Hi,
>
>>>> If setup attribute is used with protocol prefix, it is unclear if 
>>>> it will be correctly recognized by the remote party.
>>>
>>> Am I right that there is no rfc specifying use of the setup 
>>> attribute with dtls? (The IANA registry only has rfc4145 covering 
>>> TCP.)
>>
>> RFC 5763 seciont 5 (https://tools.ietf.org/html/rfc5763#section-5) 
>> specifies how SDP setup attribute is used when DTLS association is established. So, we are dealing with existing, standard compliant implementations.
>
> RFC 7345 (UDPTL-DTLS) also uses the same procedures, as does BFCPbis AFAIR.
>
> Regards,
>
> Christer
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