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Re: [6lo] FW: New Version Notification for draft-thubert-6lo-unicast-lookup-01.txt

"Falendysz, Gene" <Gene.Falendysz@itron.com> Mon, 04 October 2021 16:02 UTC

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From: "Falendysz, Gene" <Gene.Falendysz@itron.com>
To: "6lo@ietf.org" <6lo@ietf.org>
Thread-Topic: RE:[6lo] FW: New Version Notification for draft-thubert-6lo-unicast-lookup-01.txt
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Archived-At: <https://mailarchive.ietf.org/arch/msg/6lo/UzhOTyO2Iq5ax5OkVv-PwQUrpQo>
Subject: Re: [6lo] FW: New Version Notification for draft-thubert-6lo-unicast-lookup-01.txt
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Hi Pascal,

  This is a very good addition. It is needed for devices that have very limited resources. Battery devices in the utility industry sleep for periods of time and are not conducive to the discovery methods that require broadcast.

I do have  few comments:

-          In the introduction it mentions that energy drain and then further qualifies it to transmissions. In reality listening is also a significant power consumer which is why many battery devices employ sampled listening.

-          In the third last paragraph of the introduction it talks about the registration of "a multicast address". It should not be limited to registering a single multicast address. Constrained devices may need to receive from multiple multicast addresses.

-          The last paragraph of section 3 indicates that the multicast frames are unicast to the each 6LN that registers for a multicast address. If the MAC supports it, why not allow broadcast?



Best regards,



Gene Flendysz


[6lo] FW: New Version Notification for draft-thubert-6lo-unicast-lookup-01.txt

"Pascal Thubert (pthubert)" pthubert@cisco.com<mailto:pthubert@cisco.com> Mon, 27 September 2021 13:32 UTCShow header<https://mailarchive.ietf.org/arch/browse/6lo/>

Dear all:



This draft is a continuation of our work on RFC 8505, 8928, and 8929.



Comments welcome!



Pascal



-----Original Message-----

From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org> <internet-drafts@ietf.org><mailto:&lt;internet-drafts@ietf.org&gt;>

Sent: lundi 27 septembre 2021 15:29

To: Eric Levy- Abegnoli (elevyabe) <elevyabe@cisco.com><mailto:&lt;elevyabe@cisco.com&gt;>om>; Pascal Thubert (pthubert) <pthubert@cisco.com><mailto:&lt;pthubert@cisco.com&gt;>

Subject: New Version Notification for draft-thubert-6lo-unicast-lookup-01.txt





A new version of I-D, draft-thubert-6lo-unicast-lookup-01.txt

has been successfully submitted by Pascal Thubert and posted to the IETF repository.



Name:                              draft-thubert-6lo-unicast-lookup

Revision:     01

Title:                                IPv6 Neighbor Discovery Unicast Lookup

Document date:              2021-09-27

Group:                             Individual Submission

Pages:                              15

URL:            https://www.ietf.org/archive/id/draft-thubert-6lo-unicast-lookup-01.txt

Status:         https://datatracker.ietf.org/doc/draft-thubert-6lo-unicast-lookup/

Html:           https://www.ietf.org/archive/id/draft-thubert-6lo-unicast-lookup-01.html

Htmlized:       https://datatracker.ietf.org/doc/html/draft-thubert-6lo-unicast-lookup

Diff:           https://www.ietf.org/rfcdiff?url2=draft-thubert-6lo-unicast-lookup-01



Abstract:

   This document updates RFC 8505 in order to enable unicast address

   lookup from a 6LoWPAN Border Router acting as an Address Registrar.









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