Re: [netmod] WG adoption poll for draft-clemm-netmod-nmda-diff-00
Ladislav Lhotka <lhotka@nic.cz> Fri, 05 October 2018 07:44 UTC
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From: Ladislav Lhotka <lhotka@nic.cz>
To: Andy Bierman <andy@yumaworks.com>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>, Kent Watsen <kwatsen@juniper.net>, "netmod@ietf.org" <netmod@ietf.org>
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References: <201810031419.w93EJNpn040188@idle.juniper.net> <20181004.121417.2190375850946168105.mbj@tail-f.com> <69afa537-9a5f-6fb6-de21-2add0ffec4b2@cisco.com> <0aa239221e80e812f920db6ae023eabc6b3ef5ed.camel@nic.cz> <ccc83277-cfa7-f363-1beb-78e801f8b675@cisco.com> <27c125fa83754c5f6723e04243f1efdaf4be8e82.camel@nic.cz> <7E46B2E3-3F12-4E08-8172-823E73E25D50@juniper.net> <20181004190754.fsu5ck5jblw5uuah@anna.jacobs.jacobs-university.de> <CABCOCHTu5ju8Qv548g+mDNioBAAuxRywZknoNO9mbUOY3MaoGw@mail.gmail.com>
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Date: Fri, 05 Oct 2018 09:44:33 +0200
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Subject: Re: [netmod] WG adoption poll for draft-clemm-netmod-nmda-diff-00
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Andy Bierman <andy@yumaworks.com> writes: > On Thu, Oct 4, 2018 at 12:07 PM, Juergen Schoenwaelder < > j.schoenwaelder@jacobs-university.de> wrote: > >> Folks, the more formats there are, the less interoperability we >> get. If there are multiple formats, is there a mandatory to implement >> format? Does the mandatory to implement format depend on the protocol >> that is being used? >> >> I prefer one format or if necessary I am fine with one mandatory to >> implement format. An open ended collection of implementation specific >> formats is super flexible but defeats the purpose of a standard, >> namely interoperability. >> >> > I agree there needs to be 1 mandatory-to-implement format. > > IMO this needs to be YANG Patch because it is more precise then > constructing an XML tree with > operation attributes in it (e.g., how else do you represent a delete or a > move?) > Also, YANG Push is using YANG Patch format and common code for push and > diff would be > possible. +1 Lada > > I think other formats should be allowed. > This is very tool-specific. I could see how somebody might want > a textual patch of the XML representation to produce the new XML > representation. > > > >> /js >> > > Andy > > >> >> On Thu, Oct 04, 2018 at 05:41:22PM +0000, Kent Watsen wrote: >> > We agree that the diff-format should be client-selectable, modulo what >> the server supports. yang-patch and edit-config both are viable. Should >> we document them both? >> > >> > That said, since neither edit-config nor yang-patch are diffing formats, >> so much as formats for converting one data tree to another, would it make >> sense to define an actual diffing format? I would think that a diff would >> provide both values, not just a new value. >> > >> > Kent // contributor >> > >> > >> > -----Original Message----- >> > From: netmod <netmod-bounces@ietf.org> on behalf of Ladislav Lhotka < >> lhotka@nic.cz> >> > Organization: CZ.NIC >> > Date: Thursday, October 4, 2018 at 1:11 PM >> > To: Robert Wilton <rwilton@cisco.com>, "netmod@ietf.org" < >> netmod@ietf.org> >> > Subject: Re: [netmod] WG adoption poll for draft-clemm-netmod-nmda-diff-0 >> 0 >> > >> > On Thu, 2018-10-04 at 14:17 +0100, Robert Wilton wrote: >> > > >> > > On 04/10/2018 13:51, Ladislav Lhotka wrote: >> > > > On Thu, 2018-10-04 at 13:36 +0100, Robert Wilton wrote: >> > > > > On 04/10/2018 11:14, Martin Bjorklund wrote: >> > > > > > Phil Shafer <phil@juniper.net> wrote: >> > > > > > > Bal?zs Lengyel writes: >> > > > > > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.i >> etf.org_html_draft-2Dclemm-2Dnetmod-2Dnmda-2Ddiff-2D00&d=DwI >> CAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJ >> UvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=7s6VdzzH9Ol3BOCbVLBarB >> rQ5fD0vTt8k_I2KDEN97c&s=gQWJtjc_2EF3QgRvABgZKsjqzuIw9yUq_xee6aFJOcw&e= >> > > > > > > [I've moved to a "deep lurker" role here, but ...] >> > > > > > > >> > > > > > > Can we ensure this model contains a "format" leaf in the RPC's >> input >> > > > > > > so that future (and proprietary) formats can be supported? >> That >> > > > > > > leaf can be an identityref that defaults to yang-patch. >> > > > > > I think this is a good idea. I would prefer the edit-config >> format >> > > > > > over YANG patch for describing a diff. The edit-config format >> is more >> > > > > > suited for this purpose imo. >> > > > > +1 >> > > > > >> > > > > I would like something closer to edit-config to be available via >> > > > > RESTCONF as well. >> > > > YANG Patch is IMO better because it clearly separates the target for >> the >> > > > edits >> > > > from the new content. >> > > > In edit-config these two are mixed together. >> > > Yes, that is primarily why I prefer the edit-config. I perceive that >> it >> > > is a denser and more efficient format. I think that it is both easier >> > > to construct (when diffing two trees) and also more efficient to apply >> > > when generating an updated tree. >> > >> > Except for certain corner cases, for example if two trees differ only in >> the >> > value of a single leaf but this leaf happens to be a list key. >> > >> > Lada >> > >> > > >> > > Thanks, >> > > Rob >> > > >> > > >> > > > That being said, I support specifying format/media-type and having >> > > > potentially >> > > > multiple options. >> > > > >> > > > Lada >> > > > >> > > > > Thanks, >> > > > > Rob >> > > > > >> > > > > >> > > > > > /martin >> > > > > > >> > > > > > _______________________________________________ >> > > > > > netmod mailing list >> > > > > > netmod@ietf.org >> > > > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.iet >> f.org_mailman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh >> 0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTv >> jISlaJdcZo&m=7s6VdzzH9Ol3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s= >> RVJcg5pzHW-zi1OboCL4SX2huW9euHiVRSCor9n_APQ&e= >> > > > > > . >> > > > > > >> > > > > _______________________________________________ >> > > > > netmod mailing list >> > > > > netmod@ietf.org >> > > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.iet >> f.org_mailman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh >> 0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTv >> jISlaJdcZo&m=7s6VdzzH9Ol3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s= >> RVJcg5pzHW-zi1OboCL4SX2huW9euHiVRSCor9n_APQ&e= >> > -- >> > Ladislav Lhotka >> > Head, CZ.NIC Labs >> > PGP Key ID: 0xB8F92B08A9F76C67 >> > >> > _______________________________________________ >> > netmod mailing list >> > netmod@ietf.org >> > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.iet >> f.org_mailman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh >> 0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTv >> jISlaJdcZo&m=7s6VdzzH9Ol3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s= >> RVJcg5pzHW-zi1OboCL4SX2huW9euHiVRSCor9n_APQ&e= >> > >> > _______________________________________________ >> > netmod mailing list >> > netmod@ietf.org >> > https://www.ietf.org/mailman/listinfo/netmod >> >> -- >> Juergen Schoenwaelder Jacobs University Bremen gGmbH >> Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany >> Fax: +49 421 200 3103 <https://www.jacobs-university.de/> >> >> _______________________________________________ >> netmod mailing list >> netmod@ietf.org >> https://www.ietf.org/mailman/listinfo/netmod >> > _______________________________________________ > netmod mailing list > netmod@ietf.org > https://www.ietf.org/mailman/listinfo/netmod -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67
- [netmod] WG adoption poll for draft-clemm-netmod-… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Jeff Tantsura
- Re: [netmod] WG adoption poll for draft-clemm-net… Alexander Clemm
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Qin Wu
- Re: [netmod] WG adoption poll for draft-clemm-net… Reshad Rahman (rrahman)
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Reshad Rahman (rrahman)
- Re: [netmod] WG adoption poll for draft-clemm-net… Robert Wilton
- Re: [netmod] WG adoption poll for draft-clemm-net… Acee Lindem (acee)
- Re: [netmod] WG adoption poll for draft-clemm-net… Martin Bjorklund
- Re: [netmod] WG adoption poll for draft-clemm-net… Yingzhen Qu
- Re: [netmod] WG adoption poll for draft-clemm-net… Susan Hares
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Balázs Lengyel
- Re: [netmod] WG adoption poll for draft-clemm-net… Phil Shafer
- Re: [netmod] WG adoption poll for draft-clemm-net… Martin Bjorklund
- Re: [netmod] WG adoption poll for draft-clemm-net… Robert Wilton
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Robert Wilton
- Re: [netmod] WG adoption poll for draft-clemm-net… Martin Bjorklund
- Re: [netmod] WG adoption poll for draft-clemm-net… Andy Bierman
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Juergen Schoenwaelder
- Re: [netmod] WG adoption poll for draft-clemm-net… Andy Bierman
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Juergen Schoenwaelder
- Re: [netmod] WG adoption poll for draft-clemm-net… Reshad Rahman (rrahman)
- Re: [netmod] WG adoption poll for draft-clemm-net… Andy Bierman
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Ladislav Lhotka
- Re: [netmod] WG adoption poll for draft-clemm-net… Alexander Clemm
- Re: [netmod] WG adoption poll for draft-clemm-net… Xufeng Liu
- Re: [netmod] WG adoption poll for draft-clemm-net… Tianran Zhou
- Re: [netmod] WG adoption poll for draft-clemm-net… Susan Hares
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Alexander Clemm
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Andy Bierman
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Kent Watsen
- Re: [netmod] WG adoption poll for draft-clemm-net… Alexander Clemm