[T2TRG] Review of draft-hong-t2trg-iot-edge-computing-03

Thomas Fossati <Thomas.Fossati@arm.com> Fri, 17 April 2020 13:25 UTC

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From: Thomas Fossati <Thomas.Fossati@arm.com>
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Thread-Topic: Review of draft-hong-t2trg-iot-edge-computing-03
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Date: Fri, 17 Apr 2020 13:25:25 +0000
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Subject: [T2TRG] Review of draft-hong-t2trg-iot-edge-computing-03
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Hi Xavier and co-authors,

I've read your draft and found it to be a good document.  To me it looks
like a very useful addition to the corpus produced by this RG, so I'd
recommend adoption.

Below I've left a few annotations in case you find them useful.

High level:
- Nicely structured document;
- Some sections are fully developed, other less so, which is totally
  normal at this stage.  In particular, I'm having a bit of trouble
  with Section 3.5 content-/scope-wise.  I also found forward reference
  to Appendix A slightly confusing.  It probably needs a bit of reorg
  to disentangle the various threads into a clearer picture.

Low level:
- Section 3.2.  "It is predicted that by 2019" needs refreshing :-)
- Please remove section 2 altogether, 2119 language is not needed here;
- Section 4.1.  Not just the BE nature of the Internet, it may also be
  simple and pure speed-of-light limitations at work there;
- Section 4.3.  The dual is also true, a cloud back-end might want to
  have a reading of the device even if it's currently asleep.  In this
  case the edge GW caches the last reading and makes it available to the
  cloud;
- Section 4.4.  There's also a threat from passive observers on the
  device-to-cloud path that can do traffic analysis even when the
  communication is encrypted end-to-end.  So hiding the natural traffic
  patterns associated with the sensor network can be a further
  requirement?
- Appendix A.  It's a good snapshot but it has an intrinsic "aging"
  problem.  Maybe better keeping its content in a living document and
  referencing it from here?

Nits:
- "Cloud computing has been a predominant" =>
       "Cloud computing has become a predominant" maybe?
- Not clear what "post-clouds" means in "we will reach the era of
  post-clouds"; Is this an established term? I'd never heard it before.

cheers!
--

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