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Re: [MMUSIC] Mirja Kühlewind's Discuss on draft-ietf-mmusic-sctp-sdp-23: (with DISCUSS)

Eric Rescorla <ekr@rtfm.com> Thu, 16 February 2017 14:40 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Thu, 16 Feb 2017 06:39:14 -0800
Message-ID: <CABcZeBMnefcEWsLPXRXUAyuX2H6ZYF42LzJbR_eS1ve25T0mYA@mail.gmail.com>
To: Christer Holmberg <christer.holmberg@ericsson.com>
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Cc: "mmusic-chairs@ietf.org" <mmusic-chairs@ietf.org>, "mmusic@ietf.org" <mmusic@ietf.org>, "fandreas@cisco.com" <fandreas@cisco.com>, Mirja Kuehlewind <ietf@kuehlewind.net>, The IESG <iesg@ietf.org>, "draft-ietf-mmusic-sctp-sdp@ietf.org" <draft-ietf-mmusic-sctp-sdp@ietf.org>
Subject: Re: [MMUSIC] Mirja Kühlewind's Discuss on draft-ietf-mmusic-sctp-sdp-23: (with DISCUSS)
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With that said, why are we registering TCP/DTLS/TCP at all? Is anyone
really going to use this without ICE?

-Ekr


On Thu, Feb 16, 2017 at 6:37 AM, Christer Holmberg <
christer.holmberg@ericsson.com> wrote:

> Hi Mirja,
>
> ...
>
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
>
> > Why is this using TCP/DTLS/SCTP instead of TCP/TLS/SCTP?
>
> Because the way it is realized is by transporting SCTP on top of DTLS (as
> defined in draft-ietf-tsvwg-sctp-dtls-encaps) and transporting DTLS on
> top of TCP (defined in RFC 4571).
>
> Regards.
>
> Christer
>
>
>
>
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