[lp-wan] Éric Vyncke's Discuss on draft-ietf-lpwan-ipv6-static-context-hc-21: (with DISCUSS and COMMENT)

Éric Vyncke via Datatracker <noreply@ietf.org> Wed, 21 August 2019 13:18 UTC

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Subject: [lp-wan] Éric Vyncke's Discuss on draft-ietf-lpwan-ipv6-static-context-hc-21: (with DISCUSS and COMMENT)
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Éric Vyncke has entered the following ballot position for
draft-ietf-lpwan-ipv6-static-context-hc-21: Discuss

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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------

Thank you for the hard work put into this extensive document. I have a couple
of DISCUSSes and COMMENTs, all easy to be fixed except perhaps the DISCUSS
around secrion 10.7.2.

Regards,

-éric

== DISCUSS ==

-- Section 3.2 --
What is the expected behavior when the "link identifier data item" does not
match the length of this field?

-- Section 10.3 --
I am not a transport expert but I wonder whether the text "ECN functionality
depends on both bits of the ECN field,..." is at the right place? Section 10.2
would appear better to me but again I am not an transport/ECN expert.

-- Section 10.7.2 --
It is unclear to me how the gateway and the device can share the required
'shared secret' and especially the 'DAD counter' of RFC 7217... This render the
2 paragraph confusing at best and possibly impossible to implement.


----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thank you for the hard work put into this extensive document. I have a couple
of DISCUSSes and COMMENTs, all easy to be fixed except perhaps the DISCUSS
around secrion 10.7.2.

Regards,

-éric

== COMMENTS ==

-- Section 3.1 --
Is there any use of the "link identifier length data item" as in section 3.2
the link identifier has a field for its length?

-- Section 8 --
Several F/R modes are defined but none is specified as mandatory to implement.
Is it worth repeating that the 'out-of-band' initialization of devices include
the selected mode(s) ?

-- section 8 --
It is unclear to me whether multiple fragmented packets can be sent in parallel
with other fragmented or non-fragmented packets (such as fragment & interleave
in order to deliver a small packet with priority). Some text around this
feature (or lack of feature) would be welcome.

-- section 10.8 --
If you refer to 'extension headers', then use the complete wording 'extension
headers' rather than 'extensions'.

== NITS ==

-- Section 8.4 --
Multiple figures are referred to but do not appear on the same page as the
reference. This hinders the reading.

-- section 10.9 --
s/port/ports/ in the title