I agree that a mandatory to implement format is desirable. I disagree that YANG-Patch is the right format, for reasons stated before. I feel that a compromise of this sort for a mandatory-to-implement is wrong.
If this is what the WG wants, I withdraw my support. Kent // contributor -----Original Message----- From: Alexander Clemm <[email protected]> Date: Monday, October 8, 2018 at 5:05 PM To: Ladislav Lhotka <[email protected]>, Kent Watsen <[email protected]>, Andy Bierman <[email protected]>, Juergen Schoenwaelder <[email protected]>, "[email protected]" <[email protected]> Subject: RE: [netmod] WG adoption poll for draft-clemm-netmod-nmda-diff-00 I would second the request for one format (which is mandatory to support), which must be specified. YANG-Patch is the logical candidate IMHO. To allow selection of other formats using an input parameter makes sense, but adds some complexity from there: How to know which formats are supported? (Add a list of supported formats somewhere?) Or simply rely on augmentation for those implementations that want it? --- Alex > -----Original Message----- > From: netmod [mailto:[email protected]] On Behalf Of Ladislav Lhotka > Sent: Friday, October 05, 2018 12:50 AM > To: Kent Watsen <[email protected]>; Andy Bierman > <[email protected]>; Juergen Schoenwaelder <j.schoenwaelder@jacobs- > university.de>; [email protected] > Subject: Re: [netmod] WG adoption poll for draft-clemm-netmod-nmda-diff-00 > > Kent Watsen <[email protected]> writes: > > > Sure, one mandatory to implement format, others nice to have. > > Interoperability good. Agreed. > > > > But why YANG-patch and not something built for the purpose (e.g., > > YANG-diff) that, in particular, provides an actual diff as opposed to > > a data-tree operation that only shows one of the two values? > > Such a format can be developed independently, I would support it. > > Lada > > > > > Kent // contributor > > > > > > On 10/4/18, 3:27 PM, "Andy Bierman" > <[email protected]<mailto:[email protected]>> wrote: > > > > On Thu, Oct 4, 2018 at 12:07 PM, Juergen Schoenwaelder > <[email protected]<mailto: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. > > > > 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 > >> <[email protected]<mailto:[email protected]>> on behalf > >> of Ladislav Lhotka <[email protected]<mailto:[email protected]>> > >> Organization: CZ.NIC > >> Date: Thursday, October 4, 2018 at 1:11 PM > >> To: Robert Wilton <[email protected]<mailto:[email protected]>>, > >> "[email protected]<mailto:[email protected]>" > >> <[email protected]<mailto:[email protected]>> > >> Subject: Re: [netmod] WG adoption poll for > >> draft-clemm-netmod-nmda-diff-00 > >> > >> 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 <[email protected]<mailto:[email protected]>> wrote: > >> > > > > > Bal?zs Lengyel writes: > >> > > > > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__tool > >> > > > > > > s.ietf.org_html_draft-2Dclemm-2Dnetmod-2Dnmda-2Ddiff-2D00 > >> > > > > > > &d=DwICAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK- > ndb3voDTXcWzoCI&r > >> > > > > > > > =9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=7s6VdzzH9O > >> > > > > > > > l3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s=gQWJtjc_2EF3QgRvABgZK > >> > > > > > > sjqzuIw9yUq_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 > >> > > > > [email protected]<mailto:[email protected]> > >> > > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf > >> > > > > > .org_mailman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh0U > >> > > > > jBXeMK- > ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjIS > >> > > > > > laJdcZo&m=7s6VdzzH9Ol3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s=RVJcg > >> > > > > 5pzHW-zi1OboCL4SX2huW9euHiVRSCor9n_APQ&e= > >> > > > > . > >> > > > > > >> > > > _______________________________________________ > >> > > > netmod mailing list > >> > > > [email protected]<mailto:[email protected]> > >> > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.o > >> > > > > rg_mailman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh0UjBXe > >> > > > MK- > ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZ > >> > > > > o&m=7s6VdzzH9Ol3BOCbVLBarBrQ5fD0vTt8k_I2KDEN97c&s=RVJcg5pzHW-zi > >> > > > 1OboCL4SX2huW9euHiVRSCor9n_APQ&e= > >> -- > >> Ladislav Lhotka > >> Head, CZ.NIC Labs > >> PGP Key ID: 0xB8F92B08A9F76C67 > >> > >> _______________________________________________ > >> netmod mailing list > >> [email protected]<mailto:[email protected]> > >> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mai > >> lman_listinfo_netmod&d=DwICAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK- > ndb3voDTX > >> > cWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=7s6VdzzH9Ol3 > BO > >> CbVLBarBrQ5fD0vTt8k_I2KDEN97c&s=RVJcg5pzHW- > zi1OboCL4SX2huW9euHiVRSCor > >> 9n_APQ&e= > >> > >> _______________________________________________ > >> netmod mailing list > >> [email protected]<mailto:[email protected]> > >> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_netmod&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=g0x_B-Xez7tD9hLX71D5vlcHdZohnTkiMVIKJhAHivk&e=<https://urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.proof&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=bzLaLoBCJ88laveupLqapYN4btjEBBvNENNy09Tsooc&e= > >> point.com/v2/url?u=https- > 3A__www.ietf.org_mailman_listinfo_netmod&d=D > >> wMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK- > ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9E > >> PoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=O7d- > b9gyPvsasJo1ueKk3doDH7f5S5WQLo8_W6 > >> W3qt4&s=5LHhbfQZeoqYlC40T3mm-AEz4rSsyRWYjqTK7LuWTPw&e=> > > > > -- > > Juergen Schoenwaelder Jacobs University Bremen gGmbH > > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > > Fax: +49 421 200 3103 > > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.jacobs-2D&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=5RD96-TjymU1ZhmfZFtWEm4abkkdaxqrkCKzuv4PZRQ&e= > university.de/<https://urldefense.proofpoint.com/v2/url?u=https- > 3A__www.jacobs- > 2Duniversity.de_&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK- > ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=O > 7d- > b9gyPvsasJo1ueKk3doDH7f5S5WQLo8_W6W3qt4&s=zh7qEPSmwviaSqZBqG1Gc > qItXwI9pwyqIFVW6xC8rK8&e=>> > > > > _______________________________________________ > > netmod mailing list > > [email protected]<mailto:[email protected]> > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_netmod&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=g0x_B-Xez7tD9hLX71D5vlcHdZohnTkiMVIKJhAHivk&e=<https://urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.proofp&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=id5kdXDEb4afnobWT-fUq3YfsIkHooz5RtXYsoQRt1o&e= > > oint.com/v2/url?u=https- > 3A__www.ietf.org_mailman_listinfo_netmod&d=DwM > > FaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK- > ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoO > > H7Yhqn2gsBYaGTvjISlaJdcZo&m=O7d- > b9gyPvsasJo1ueKk3doDH7f5S5WQLo8_W6W3qt > > 4&s=5LHhbfQZeoqYlC40T3mm-AEz4rSsyRWYjqTK7LuWTPw&e=> > > > > _______________________________________________ > > netmod mailing list > > [email protected] > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_netmod&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=g0x_B-Xez7tD9hLX71D5vlcHdZohnTkiMVIKJhAHivk&e= > > -- > Ladislav Lhotka > Head, CZ.NIC Labs > PGP Key ID: 0xB8F92B08A9F76C67 > > _______________________________________________ > netmod mailing list > [email protected] > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_netmod&d=DwIFAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=9zkP0xnJUvZGJ9EPoOH7Yhqn2gsBYaGTvjISlaJdcZo&m=DM1jswnM48GwdI4tez-Jtf2ua2jvtLZVKfiwkbwbIrU&s=g0x_B-Xez7tD9hLX71D5vlcHdZohnTkiMVIKJhAHivk&e= _______________________________________________ netmod mailing list [email protected] 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