Re: [lmap] Benoit Claise's No Objection on draft-ietf-lmap-yang-11: (with COMMENT)
Benoit Claise <bclaise@cisco.com> Thu, 16 March 2017 11:47 UTC
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To: The IESG <iesg@ietf.org>, draft-ietf-lmap-yang@ietf.org, Dan Romascanu <dromasca@gmail.com>, lmap-chairs@ietf.org, lmap@ietf.org, bill.wu@huawei.com
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From: Benoit Claise <bclaise@cisco.com>
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Date: Thu, 16 Mar 2017 12:47:09 +0100
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Subject: Re: [lmap] Benoit Claise's No Objection on draft-ietf-lmap-yang-11: (with COMMENT)
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On 3/16/2017 11:26 AM, Juergen Schoenwaelder wrote: > On Thu, Mar 16, 2017 at 02:27:31AM -0700, Benoit Claise wrote: >> ---------------------------------------------------------------------- >> COMMENT: >> ---------------------------------------------------------------------- >> >> - No objection to the publication, but the following phrasing puzzles >> me. >> >> It aims to be consistent with the >> LMAP Information Model [I-D.ietf-lmap-information-model]. >> >> Actually, the data model is based on information model, right? > I changed this to "It is based on the LMAP Information Model []" in > my sources. > >> >From the charter: >> 5. The Report protocol and the associated data model: The definition of >> >> how the Report is delivered from a MA to a Collector; this includes a >> Data Model consistent with the Information Model plus a transport >> protocol (to be selected, perhaps REST-style HTTP(s) or IPFIX). >> >> This is reason why the information model is standard track in the >> charter. >> Therefore the information model must be a normative reference, right? > I don't quite understand the logic above. That said, I can go either > way (means I do not really care whether the reference is in the > normative of informative section). The question is: which one is the source of truth? The IM or the DM? > >> - one question about the typedefs naming. >> It would nice to be able to reuse YANG constructs, typedefs being of >> them >> We created http://www.yangcatalog.org/yang-search/yang-search.php with >> that goal in mind. >> => insert "identifier" >> => select typedef >> Some of the typedefs are so generically named in LMAP YANG module: >> identifier, tag, cycle-number, wildcard, etc. >> Do you expect YANG designers to reuse them outside of LMAP? Some of them, >> I guess so >> Should the other ones be renamed with LMAP in mind. Ex: >> lmap-identifier? >> In other words, are all the ietf-lmap-common.yang typedef common? > When you reuse definitions from ietf-lmap-common, they will appear in > your YANG module as: > > type lmap:identifier; Sure. > > Adding lmap to the type name just makes things look unnecessarily > ugly: ... from a LMAP point of view. > > type lmap:lmap-identifier; I come from this angle: http://www.yangcatalog.org/yang-search/yang-search.php And I search for any identifier typedef I could reuse. I would prefer to have typedefs called LMAP-xxx is they're not really common. > > I am not sure it is useful to speculate who might be reusing what in > the future. I would rather keep an eye on things and if we observe > that definitions get reused or duplicated, consider moving these > definitions into a common place (ietf-yang-types, ietf-inet-types) > since I do understand that people prefer to not depend on definitions > contained in some arbitrary YANG modules where maintenance may be less > clear over time. It may not be bad to spin the common yang types > document every ~3 years. (But then I also recall that last time the > nitpicking during the approval process was on types that already > existed in the first revision and not on the stuff that was added, > which makes this at times a bit painful.) You're maybe right. Regards, B. > >> Editorial: >> - figure 1 >> OLD: ietf-lmap-comman.yang >> NEW: ietf-lmap-common.yang > Already fixed in my sources. > > /js >
- [lmap] Benoit Claise's No Objection on draft-ietf… Benoit Claise
- Re: [lmap] Benoit Claise's No Objection on draft-… Juergen Schoenwaelder
- Re: [lmap] Benoit Claise's No Objection on draft-… Benoit Claise
- Re: [lmap] Benoit Claise's No Objection on draft-… Juergen Schoenwaelder
- Re: [lmap] Benoit Claise's No Objection on draft-… Benoit Claise