Re: [6tisch] comments on latest terminology draft

Thomas Watteyne <thomas.watteyne@inria.fr> Fri, 22 April 2016 12:59 UTC

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From: Thomas Watteyne <thomas.watteyne@inria.fr>
Date: Fri, 22 Apr 2016 14:58:34 +0200
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To: "Turner, Randy" <Randy.Turner@landisgyr.com>
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Subject: Re: [6tisch] comments on latest terminology draft
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Randy,

I'll let Maria Rita comment about the typos, I assume it's just a matter to
spinning the doc.

About "link", I went back to read the draft. The following definition...

------------------
A communication facility or medium over which nodes can
communicate at the link layer, i.e., the layer
immediately below IP.  Thus, the IETF parlance for the
term "Link" is adopted, as opposed to the IEEE802.15.4e
terminology.  In the context of the 6TiSCH architecture,
which applies to Low Power Lossy Networks (LLNs), an IPv6
subnet is usually not congruent to a single link and
techniques such as IPv6 Neighbor Discovery Proxying are
used to achieve reachability within the multilink subnet.
A link is distinct from a track.  In fact, link local
addresses are not expected to be used over a track for
end to end communication.  Finally, from the Layer 3
perspective (where the inner complexities of TSCH
operations are hidden to enable classical IP routing and
forwarding), a single radio interface may be seen as a
number of Links with different capabilities for unicast
or multicast services.
---------------

... is confusing, to say the least. IMO, it touches on almost all of the
IETF work (talking about ND proxy, mutiling subnets, tracks in the
definition of link ?!?) , is incredibly confusing, and as a result carries
0 information. What about

A link exists between two nodes when at least one cell is schedule between
them.

Thomas




On Mon, Apr 18, 2016 at 8:38 PM, Turner, Randy <Randy.Turner@landisgyr.com>
wrote:

> Hi Guys,
>
>
>
> I had a couple of comments on the recent -07 terminology draft:
>
>
>
> Deterministic Network - "A deterministic network can allocates..." should
> be "A deterministic network can allocate..."
>
>
>
> "6top Data Convey Model" - Model describing how the 6top adaptation
> layer...<snip>
>
> Is this really an adaptation layer? - In the IETF, the term "adaptation
> layer" has come to mean something different
>
>
>
> 6p Transaction - "Part of the 6top Protocol, in consists in" should
> probably be "...consists of"
>
>
>
> "Bundle" - typo "usining" should be "using"
>
>
>
> "Link" – When I read this description, it sounds similar to an
> interference domain - should the difference (if any) be spelled out or
> distinguished ? Or am I the only one that sees this similarity?
>
>
>
> Thanks!
> R.
>
> _______________________________________________
> 6tisch mailing list
> 6tisch@ietf.org
> https://www.ietf.org/mailman/listinfo/6tisch
>
>


-- 
_______________________________________

Thomas Watteyne, PhD
Research Scientist & Innovator, Inria
Sr Networking Design Eng, Linear Tech
Founder & co-lead, UC Berkeley OpenWSN
Co-chair, IETF 6TiSCH

www.thomaswatteyne.com
_______________________________________