Hi,

I support Christer's point of view.

Cheers,
Xavier

On Thu, Mar 6, 2008 at 9:25 AM, Christer Holmberg
<[EMAIL PROTECTED]> wrote:
>
>  Hi,
>
>  I have big issues with the keep-alive change in the -12 version.
>
>  Because, now the STUN keep-alives usage can't be applied between the UA
>  and outbound proxy, unless the registrar supports outbound.
>
>  I strongly think it should be possible to use STUN keep-alives for
>  "pure" signalling NAT traversal, even if the "rest" of outbound is not
>  used.
>
>  So, while I DO agree with the Vancouver(?) decission to not include any
>  "URI" keep parameter in the R-URI of the register request, I think we
>  shall we keep the URI "keep" parameter definition, and e.g. allow it to
>  be inserted into the Path header (I don't remember any discussions
>  regarding removing that possibility) by the outbound proxy, in order to
>  inform the UA that the outbound proxy supports STUN keep-alive.
>
>  (OR, there should be another mechanism for the outbound proxy to inform
>  the UA it supports STUN keep-alive)
>
>  That would allow people to start using outbound for NAT traversal, even
>  if the registrars haven't yet been updated to support outbound etc.
>
>  At one point we decided that we will keep the STUN keep-alive usage and
>  outbound in the same spec, but that we will describe the STUN keep-alive
>  usage as a "stand alone" function (chapter 8 of the draft). But, now you
>  have more or less "merged" the STUN keep-alive usage with the outbound
>  function, and that is bad.
>
>  Also, this change is not mentioned in the
>  changes-since-the-previous-version part (if it is mentioned, I
>  appologize for having missed it)
>
>  Regards,
>
>  Christer
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