Re: [manet] I-D Action: draft-ietf-manet-dlep-25.txt

[Lou Berger <[e-mail]>]

Thanks Stan.  I have some concerns over the following new text:

> If the router and modem support both IPv4 and IPv6, the
   IPv6 transport MUST be used for the DLEP session.

To me the choice of v6 vs v4 *usage* is a deployment choice and not a
protocol interop issue.  The new text literally precludes an operator
from choosing v4 in their network.  I think this is inappropriate and
means that the protocol can't be deployed in certain combinations (i.e.,
an implementation that supports v6 but a network that chooses not to.)

Lou

On 10/29/2016 1:26 AM, Stan Ratliff wrote:
> Lou, 
>
> That was an AD request.
>
> Regards,
> Stan
>
>
> On Fri, Oct 28, 2016 at 12:17 PM, Lou Berger <[e-mail]
> <mailto:[e-mail]>> wrote:
>
>     Can elaborate on the new v6 requirement?  It doesn't impact
>     interoperability and may not be the right default for all.
>
>     Lou
>
>     On October 28, 2016 11:44:40 AM Stan Ratliff
>     <[e-mail] <mailto:[e-mail]>> wrote:
>
>>     Hello WG participants, 
>>
>>     As you can see, we posted a new version of DLEP. This addresses
>>     comments from the AD review, and clarifies handling of IPv4/IPv6
>>     address and subnet Data Items (issue brought on-list be David
>>     Wiggins). 
>>
>>     Regards,
>>     Stan
>>
>>
>>
>>
>>     On Fri, Oct 28, 2016 at 11:31 AM, <[e-mail]
>>     <mailto:[e-mail]>> wrote:
>>
>>
>>         A New Internet-Draft is available from the on-line
>>         Internet-Drafts directories.
>>         This draft is a work item of the Mobile Ad-hoc Networks of
>>         the IETF.
>>
>>                 Title           : Dynamic Link Exchange Protocol (DLEP)
>>                 Authors         : Stan Ratliff
>>                                   Shawn Jury
>>                                   Darryl Satterwhite
>>                                   Rick Taylor
>>                                   Bo Berry
>>                 Filename        : draft-ietf-manet-dlep-25.txt
>>                 Pages           : 74
>>                 Date            : 2016-10-28
>>
>>         Abstract:
>>            When routing devices rely on modems to effect
>>         communications over
>>            wireless links, they need timely and accurate knowledge of the
>>            characteristics of the link (speed, state, etc.) in order
>>         to make
>>            routing decisions.  In mobile or other environments where
>>         these
>>            characteristics change frequently, manual configurations
>>         or the
>>            inference of state through routing or transport protocols
>>         does not
>>            allow the router to make the best decisions.  A
>>         bidirectional, event-
>>            driven communication channel between the router and the
>>         modem is
>>            necessary.
>>
>>
>>         The IETF datatracker status page for this draft is:
>>         https://datatracker.ietf.org/doc/draft-ietf-manet-dlep/
>>         <https://datatracker.ietf.org/doc/draft-ietf-manet-dlep/>
>>
>>         There's also a htmlized version available at:
>>         https://tools.ietf.org/html/draft-ietf-manet-dlep-25
>>         <https://tools.ietf.org/html/draft-ietf-manet-dlep-25>
>>
>>         A diff from the previous version is available at:
>>         https://www.ietf.org/rfcdiff?url2=draft-ietf-manet-dlep-25
>>         <https://www.ietf.org/rfcdiff?url2=draft-ietf-manet-dlep-25>
>>
>>
>>         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 <http://tools.ietf.org>.
>>
>>         Internet-Drafts are also available by anonymous FTP at:
>>         ftp://ftp.ietf.org/internet-drafts/
>>         <ftp://ftp.ietf.org/internet-drafts/>
>>
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>>
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