Re: New Version Notification for draft-thubert-6man-ipv6-over-wireless-06.txt

Gyan Mishra <hayabusagsm@gmail.com> Mon, 01 June 2020 23:23 UTC

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From: Gyan Mishra <hayabusagsm@gmail.com>
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Subject: Re: New Version Notification for draft-thubert-6man-ipv6-over-wireless-06.txt
Date: Mon, 1 Jun 2020 19:23:46 -0400
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Cc: "Pascal Thubert (pthubert)" <pthubert=40cisco.com@dmarc.ietf.org>, 6man WG <ipv6@ietf.org>
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To: sarikaya@ieee.org
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Pascal 

I agree that this is an important topic that 6MAN should take up. 

As for draft name I agree with standards track and the name shown in the subject heading 
draft-thubert-6man-ipv6-over-wireless-06 is good.


You maybe familiar with an inherent issue that exist with multicast over WiFi where the multicast packets are transmitted at the lowest connection speed of all hosts associated to an SSID and thus the connection bandwidth ends up being low.  Dual band 5G with 802.11ac does help as devices not supporting AC cannot connect and have to connect to the single band SSID.  However older devices on single band still are subject to the significant step down to the lowest speed.  

Since IPV6 uses multicast for ND, all ND packets automatically get throttled and stepped down to the lowest bandwidth of all connected devices.  This step down issue exists for IPv4 multicast packets, however I have not tried with IPv6 but i am guessing the issue does exist.

There are WIFI vendor implementation that exist to circumvent the step down issue by taking incoming multicast steam and unicast out to all WiFi clients.  Drawback is bandwidth consumption with unicast over shared WIFI channel. 

Kind Regards 

Gyan


Sent from my iPhone

> On Jun 1, 2020, at 3:05 PM, Behcet Sarikaya <sarikaya2012@gmail.com> wrote:
> 
> 
> Hi Pascal,
> 
> I suggest changing the draft name from draft-thubert-6man-ipv6-over-wireless
> to draft-thubert-6man-ipv6nd-over-wireless
> 
> Regards,
> Behcet
> 
>> On Mon, Jun 1, 2020 at 11:52 AM Pascal Thubert (pthubert) <pthubert=40cisco.com@dmarc.ietf.org> wrote:
>> Dear all
>> 
>> I applied the changes proposed by Carsten and held the change to informational status for now, per the latest with Brian.
>> Many thanks to both of you!
>> 
>> Pascal
>> 
>> -----Original Message-----
>> From: internet-drafts@ietf.org <internet-drafts@ietf.org> 
>> Sent: lundi 1 juin 2020 18:47
>> To: Pascal Thubert (pthubert) <pthubert@cisco.com>
>> Subject: New Version Notification for draft-thubert-6man-ipv6-over-wireless-06.txt
>> 
>> 
>> A new version of I-D, draft-thubert-6man-ipv6-over-wireless-06.txt
>> has been successfully submitted by Pascal Thubert and posted to the IETF repository.
>> 
>> Name:           draft-thubert-6man-ipv6-over-wireless
>> Revision:       06
>> Title:          IPv6 Neighbor Discovery on Wireless Networks
>> Document date:  2020-06-01
>> Group:          Individual Submission
>> Pages:          23
>> URL:            https://www.ietf.org/internet-drafts/draft-thubert-6man-ipv6-over-wireless-06.txt
>> Status:         https://datatracker.ietf.org/doc/draft-thubert-6man-ipv6-over-wireless/
>> Htmlized:       https://tools.ietf.org/html/draft-thubert-6man-ipv6-over-wireless-06
>> Htmlized:       https://datatracker.ietf.org/doc/html/draft-thubert-6man-ipv6-over-wireless
>> Diff:           https://www.ietf.org/rfcdiff?url2=draft-thubert-6man-ipv6-over-wireless-06
>> 
>> Abstract:
>>    This document describes how the original IPv6 Neighbor Discovery and
>>    Wireless ND (WiND) can be applied on various abstractions of wireless
>>    media.
>> 
>> 
>> 
>> 
>> 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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