Re: [tram] FW: New Version Notification for draft-wing-mmusic-ice-mobility-06.txt

I have comments regarding the new Error Code "Mobility Forbidden".

1) Section 5.1.4:

Comment: remove two TBDs, if the error code has been already determined.

2) Section 7:

and to add a new STUN error code "Mobility Forbidden" with the value
501 to the STUN Error Codes registry [iana-stun].

Comment: I am not sure that 501 is the right code to be used. In SIP and
HTTP, 5xx errors are usually about a server code problem of some sort; 501
means "not implemented". That may be not exactly accurate. A mobility-aware
TURN server may reject the request simply because the administrator does
not allow it., and the server did not encounter an error. The reason why
the server reject the request is rather "not allowed" (which is the error
code 405).

May be be, the right approach would be to introduce two separate error
codes here: 405 "not allowed" (the server implements mobility but the
administrator forbade it) or 501 "not implemented" (the server knows about
mobility but it has no implementation for that). If the server truly is not
aware about mobility at all, the server will send no MOBILITY-TICKET in the
server response. Those are three distinct use cases: 405, 501 and an
"ignorant" server.

Thanks
Oleg

On Wed, Feb 5, 2014 at 6:17 AM, Tirumaleswar Reddy (tireddy) <
tireddy@cisco.com> wrote:

> Revised draft-wing-mmusic-ice-mobility-06 has been published. It addresses
> the comments received for Mobility using TURN and a new section with
> implementation details. Further comments and suggestions are welcome.
>
> Thanks and Regards,
> -Authors.
>
> -----Original Message-----
> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> Sent: Wednesday, February 05, 2014 7:44 PM
> To: Prashanth Patil (praspati); Tirumaleswar Reddy (tireddy); Prashanth
> Patil (praspati); Dan Wing (dwing); Tirumaleswar Reddy (tireddy); Pal
> Martinsen (palmarti); Dan Wing (dwing); Pal Martinsen (palmarti)
> Subject: New Version Notification for draft-wing-mmusic-ice-mobility-06.txt
>
>
> A new version of I-D, draft-wing-mmusic-ice-mobility-06.txt
> has been successfully submitted by Tirumaleswar Reddy and posted to the
> IETF repository.
>
> Name:           draft-wing-mmusic-ice-mobility
> Revision:       06
> Title:          Mobility with ICE (MICE)
> Document date:  2014-02-05
> Group:          Individual Submission
> Pages:          21
> URL:
> http://www.ietf.org/internet-drafts/draft-wing-mmusic-ice-mobility-06.txt
> Status:
> https://datatracker.ietf.org/doc/draft-wing-mmusic-ice-mobility/
> Htmlized:
> http://tools.ietf.org/html/draft-wing-mmusic-ice-mobility-06
> Diff:
> http://www.ietf.org/rfcdiff?url2=draft-wing-mmusic-ice-mobility-06
>
> Abstract:
>    This specification describes how endpoint mobility can be achieved
>    using ICE.  Two mechanisms are shown, one where both endpoints
>    support MICE and another where only one endpoint supports MICE.
>
>
>
>
> Please note that it may take a couple of minutes from the time of
> submission until the htmlized version and diff are available at
> tools.ietf.org.
>
> The IETF Secretariat
>
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