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Re: [pntaw] New version of TURN over websockets draft

Marc Petit-Huguenin <marc@petit-huguenin.org> Fri, 20 September 2013 17:54 UTC

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Date: Fri, 20 Sep 2013 10:54:36 -0700
From: Marc Petit-Huguenin <marc@petit-huguenin.org>
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To: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
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Cc: Victor Pascual Avila <victor.pascual.avila@gmail.com>, Oleg Moskalenko <mom040267@gmail.com>, "pntaw@ietf.org" <pntaw@ietf.org>, Lorenzo Miniero <lorenzo@meetecho.com>, "Chenxin \(Xin\)" <hangzhou.chenxin@huawei.com>
Subject: Re: [pntaw] New version of TURN over websockets draft
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I read the draft and I have some questions:

After TCP allocation over TURN Websocket, what is the Websocket equivalent of
initiating a new TCP connection (RFC 6062) after sending a ConnectionBind or
receiving a ConnectionAttempt?  Is a new Websocket connection opened and if it
is the case, shouldn't it require a different subprotocol?  Perhaps a better
alternative would be to use multiplexing
(draft-ietf-hybi-websocket-multiplexing) to not have to create multiple
Websocket connections to one TURN server?

See these links for a alternate way of multiplexing data exchanged with
multiple TCP peers over one connection:

http://www.ietf.org/proceedings/74/slides/behave-17.pdf
http://tools.ietf.org/html/draft-petithuguenin-turn-tcp-variant-01

On 09/13/2013 12:41 AM, Sergio Garcia Murillo wrote:
> Hi all
> 
> We have been working on a new version of the TURN over Websocket draft 
> originally proposed by Xin, which is now available at:
> 
> http://www.ietf.org/id/draft-chenxin-behave-turn-websocket-01.txt
> 
> We believe that it is very well aligned with the spirit of 
> draft-hutton-rtcweb-nat-firewall-considerations and should be considered to
> be endorsed by WebRTC.
> 
> Also, in order to address the concerns about the impact on TURN servers we
>  will be working in providing a working prototype over the following weeks
>  by adding a preliminary support of TURN over websockets into the 
> rfc5766-turn-server.
> 
> Any kind of feedback would be very welcome.

- -- 
Marc Petit-Huguenin
Email: marc@petit-huguenin.org
Blog: http://blog.marc.petit-huguenin.org
Profile: http://www.linkedin.com/in/petithug
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