Re: [ipwave] Fwd: New Version Notification for draft-ietf-ipwave-ipv6-over-80211ocb-31.txt

Hello Alexandre, all,

I am sharing the following information from John Kenny (
jkenney@us.toyota-itc.com), who is actively involved in 802.11p
implementation and deployments:
"OCB can use unicast in the same way as other flavors of 802.11 (
individually addressed 802.11 MAC PDU that is ACKed using 802.11 procedures
).
I find this is a common misunderstanding (indeed, I am in a meeting right
now where this very point came up about 20 minutes ago).
Probably the confusion is partly due to the fact that a great deal of DSRC
attention is focused on the broadcast Basic Safety Message.
Some people think that DSRC is only BSMs, or only broadcast messages. But,
there are some important unicast applications as well."

Thus a change is needed in 4.7, either delete the second sentence or modify
to reflect that unicast is acknowledged.:

The Neighbor Discovery protocol (ND) [RFC4861] is used over
   802.11-OCB links.  Due to lack of link-layer acknowledgements in
   802.11-OCB for both unicast and multicast, we can expect higher
   unicast loss than for 802.11 BSS.  The ND retransmissions are
   supposed to handle loss of unicast and/or multicast just as it does
   for other link types.

Thanks,

Dorothy

----------------------
Dorothy Stanley
IEEE 802.11 WG Chair, dstanley@ieee.org
Hewlett Packard Enterprise
dorothy.stanley@hpe.com <dstanley@arubanetworks.com>
dstanley1389@gmail.com
+1 630-363-1389 <630-363-1389>

On Mon, Nov 19, 2018 at 10:07 AM Alexandre Petrescu <
alexandre.petrescu@gmail.com> wrote:

> Hi IPWAVErs,
>
> Following the discussion during presentation of the IPv6/OCB slides by
> Nabil during IPWAVE WG meeting, I have updated the IPv6/OCB draft.
>
> This is the ChangeLog:
>
> - filled in the section titled "Pseudonym Handling";
> - removed a 'MAY NOT' phrase about possibility of having other
>    prefix than the LL on the link between cars;
> - shortened and improved the paragraph about Mobile IPv6, now with
>    DNAv6;
> - improved the ND text about ND retransmissions with relationship to
>    packet loss;
> - changed the title of an appendix from 'EPD' to 'Protocol Layering';
> - improved the 'Aspects introduced by OCB' appendix with a few phrases
>    about the channel use and references.
>
> This fixes all issues about ND and pseudonym handling.
>
> Alex
>
> -------- Message transféré --------
> Sujet : New Version Notification for
> draft-ietf-ipwave-ipv6-over-80211ocb-31.txt
> Date : Mon, 19 Nov 2018 10:01:52 -0800
> De : internet-drafts@ietf.org
> Pour : Jerome Haerri <Jerome.Haerri@eurecom.fr>, ipwave-chairs@ietf.org,
> Jerome Haerri <jerome.haerri@eurecom.fr>, Alexandre Petrescu
> <Alexandre.Petrescu@cea.fr>, Alexandre Petrescu
> <alexandre.petrescu@cea.fr>, Nabil Benamar <n.benamar@est.umi.ac.ma>,
> Thierry Ernst <thierry.ernst@yogoko.fr>, Jong-Hyouk Lee
> <jonghyouk@smu.ac.kr>
>
>
> A new version of I-D, draft-ietf-ipwave-ipv6-over-80211ocb-31.txt
> has been successfully submitted by Alexandre Petrescu and posted to the
> IETF repository.
>
> Name:           draft-ietf-ipwave-ipv6-over-80211ocb
> Revision:       31
> Title:          Transmission of IPv6 Packets over IEEE 802.11 Networks
> operating
> in mode Outside the Context of a Basic Service Set (IPv6-over-80211-OCB)
> Document date:  2018-11-19
> Group:          ipwave
> Pages:          41
> URL:
>
> https://www.ietf.org/internet-drafts/draft-ietf-ipwave-ipv6-over-80211ocb-31.txt
> Status:
> https://datatracker.ietf.org/doc/draft-ietf-ipwave-ipv6-over-80211ocb/
> Htmlized:
> https://tools.ietf.org/html/draft-ietf-ipwave-ipv6-over-80211ocb-31
> Htmlized:
> https://datatracker.ietf.org/doc/html/draft-ietf-ipwave-ipv6-over-80211ocb
> Diff:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-ipwave-ipv6-over-80211ocb-31
>
> Abstract:
>     In order to transmit IPv6 packets on IEEE 802.11 networks running
>     outside the context of a basic service set (OCB, earlier "802.11p")
>     there is a need to define a few parameters such as the supported
>     Maximum Transmission Unit size on the 802.11-OCB link, the header
>     format preceding the IPv6 header, the Type value within it, and
>     others.  This document describes these parameters for IPv6 and IEEE
>     802.11-OCB networks; it portrays the layering of IPv6 on 802.11-OCB
>     similarly to other known 802.11 and Ethernet layers - by using an
>     Ethernet Adaptation Layer.
>
>
>
>
> 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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