Re: [core] Éric Vyncke's Discuss on draft-ietf-core-resource-directory-25: (with DISCUSS and COMMENT)
Barry Leiba <barryleiba@computer.org> Fri, 29 January 2021 15:07 UTC
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From: Barry Leiba <barryleiba@computer.org>
Date: Fri, 29 Jan 2021 10:06:42 -0500
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To: Éric Vyncke <evyncke@cisco.com>
Cc: The IESG <iesg@ietf.org>, jaime.jimenez@ericsson.com, core-chairs@ietf.org, Bob Hinden <bob.hinden@gmail.com>, draft-ietf-core-resource-directory@ietf.org, Ole Troan <otroan@employees.org>, Jaime Jiménez <jaime@iki.fi>, core WG <core@ietf.org>
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Subject: Re: [core] Éric Vyncke's Discuss on draft-ietf-core-resource-directory-25: (with DISCUSS and COMMENT)
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Éric, will you please check version -26 and see if your DISCUSS is handled there? Thanks, Barry On Wed, Aug 5, 2020 at 3:33 AM Éric Vyncke via Datatracker <noreply@ietf.org> wrote: > > Éric Vyncke has entered the following ballot position for > draft-ietf-core-resource-directory-25: Discuss > > When responding, please keep the subject line intact and reply to all > email addresses included in the To and CC lines. (Feel free to cut this > introductory paragraph, however.) > > > Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html > for more information about IESG DISCUSS and COMMENT positions. > > > The document, along with other ballot positions, can be found here: > https://datatracker.ietf.org/doc/draft-ietf-core-resource-directory/ > > > > ---------------------------------------------------------------------- > DISCUSS: > ---------------------------------------------------------------------- > > Thank you for the work put into this document. I am little puzzled by the > document shepherd's write-up dated more than one year ago (the responsible AD > has even changed and the change is not reflected in the write-up)... while > well-written this write-up seems to indicate neither a large consensus nor a > deep interest by the CORE WG community. But, I am trusting the past and current > responsible ADs on this aspect. > > Did the authors check with 6MAN WG about the new RDAO option for IPv6 NDP ? I > was unable to find any 6MAN email related to this new NDP option and, after > checking with the 6MAN WG chairs, they also do not remember any discussion. > > BTW, I appreciated the use of ASCII art to represent an entity-relationship > diagram ! > > Please find below a couple of non-blocking COMMENTs (and I would appreciate a > reply to each of my COMMENTs) and 2 blocking DISCUSS points (but only trivial > actions/fixes are required). > > I hope that this helps to improve the document, > > Regards, > > -éric > > == DISCUSS == > > -- Section 4.1 -- > It will be trivial to fix, in IPv6 address configuration (SLAAC vs. DHCP) is > orthogonal to DHCP 'other-information'. E.g., even if address is configured via > SLAAC, DHCPv6 other-information can be used to configure the Recursive DNS > Server (or possibly the RD). > > -- Section 4.1.1 -- > Another trivial DISCUSS to fix: in which message is this RDAO sent ? I guess > unicast Router Advertisement but this MUST be specified. > > > ---------------------------------------------------------------------- > COMMENT: > ---------------------------------------------------------------------- > > == COMMENTS == > > In general, I wonder how much interactions and exchanges of ideas have happened > in the long history of this document with the DNSSD (DNS Service Discovery) > Working Group that has very similar constraints (sleeping nodes) and same > objectives. > > -- Section 2 -- > To be honest: I am not too much an APP person; therefore, I was surprised to > see "source address (URI)" used to identify the "anchor="... I do not mind too > much the use of "destination address (URI)" as it is really a destination but > the anchor does not appear to me as a "source address". Is it common > terminology ? If so, then ignore my COMMENT, else I suggest to change to > "destination URI" and simply "anchor" ? > > -- Section 3.3 -- > Should the lifetime be specified in seconds at first use in the text? > > -- Section 3.6 -- > Is the use of "M2M" still current? I would suggest to use the word "IoT" esp > when 6LBR (assuming it is 6LO Border Router) is cited later. > > Please expand and add reference for 6LBR. > > Using 'modern' technologies (cfr LP-WAN WG) could also add justification to > section 3.5. > > -- Section 4.1 -- > About "coap://[MCD1]/.well-known/core?rt=core.rd*", what is the value of MCD1 ? > The IANA section discuss about it but it may help the reader to give a hint > before (or simply use TBDx that is common in I-D). > > Any reason to use "address" rather than "group" in "When answering a multicast > request directed at a link-local address" ? > > Later "to use one of their own routable addresses for registration." but there > can be multiple configured prefixes... Which one should the RD select ? Should > this be specified ? > > As a co-author of RFC 8801, I would have appreciated to read PvD option > mentionned to discover the RD. Any reason why PvD Option cannot be used ? > > -- Section 4.1.1 -- > I suggest to swap the reserved and lifetime fields in order to be able to use a > lifetime in units of seconds (to be consistent with other NDP options). > > -- Section 5 -- > May be I missed it, but, can an end-point register multiple base URI ? E.g., > multiple IPv6 addresses. > > -- Section 9.2 -- > For information, value 38 is already assigned to RFC 8781. > > == NITS == > > -- Section 2 -- > The extra new lines when defining "Sector" are slighly confusing. Same applies > to "Target" and "Context". This is cosmetic only. > > >
- [core] Éric Vyncke's Discuss on draft-ietf-core-r… Éric Vyncke via Datatracker
- Re: [core] Éric Vyncke's Discuss on draft-ietf-co… Christian Amsüss
- Re: [core] Éric Vyncke's Discuss on draft-ietf-co… Barry Leiba
- Re: [core] Éric Vyncke's Discuss on draft-ietf-co… Eric Vyncke (evyncke)