Hi William, Rob, Andy, Given their limited usefulness and the detriments, perhaps we should discourage the creation of new submodules in RFC6087Bis.
Thanks, Acee On 8/21/17, 9:44 AM, "netmod on behalf of Ivory, William" <netmod-boun...@ietf.org on behalf of william.iv...@intl.att.com> wrote: >Hi Rob, > >That would make it very hard to update existing 1.x YANG models to use >new features in YANG 2.x if they used submodules. Maybe that's something >that no one would ever consider doing anyway, or maybe YANG 1.1 already >has similar differences to 1.0? I had (perhaps naively) assumed that you >could migrate a namespace / model from YANG 1.0 to 2.0? > >Regards, > >William > >-----Original Message----- >From: netmod [mailto:netmod-boun...@ietf.org] On Behalf Of Robert Wilton >Sent: 21 August 2017 11:24 >To: netmod@ietf.org >Subject: Re: [netmod] Query about augmenting module from submodule in >YANG 1.0 > > > >On 09/08/2017 16:13, Juergen Schoenwaelder wrote: >> On Wed, Aug 09, 2017 at 05:01:09PM +0200, Ladislav Lhotka wrote: >>> I remember that in early stages of YANG there was some irrational >>> fear of introducing too many namespaces, and submodules may be a >>> consequence of it. As you write, submodules provide no benefits >>> whatsoever in terms of modularity, but the overhead in terms of >>> metadata, IANA registration etc. is pretty much the same as for >>> modules. >> In case YANG 2.0 is ever done, I suggest someone files a proposal to >> remove submodules if the cost/benefit ratio is at odds. There is >> nothing wrong with removing stuff that has been found problematic. >I agree. > >I've added >https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_netmod-2Dw >g_yang-2Dnext_issues_26&d=DwICAg&c=LFYZ-o9_HUMeMTSQicvjIg&r=p8kyeK3u4ZYiaQ >2ZPGqwkyXmQgBH6r5jpYiYWzhqJ48&m=l7c4IPL049A2bVVO14fyBMly211xU61xSHgPlAT7ow >I&s=-kR4fUtXArQy0RwWb32DpT1bP4X_cNqt2zJVoC0JiX8&e= > >Rob > >> >> The motivation for submodules was that organizations maintaining large >> modules with multiple people can do so without having to mess around >> with tools like m4 scripts to produce a single module from 'snippets' >> and to avoid integration surprises. But perhaps using m4 scripts and >> decent version control systems (that can integrate and compile on >> checkin) is indeed cheaper than having submodules part of the YANG >> language itself. >> >> /js >> > >_______________________________________________ >netmod mailing list >netmod@ietf.org >https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_ >listinfo_netmod&d=DwICAg&c=LFYZ-o9_HUMeMTSQicvjIg&r=p8kyeK3u4ZYiaQ2ZPGqwky >XmQgBH6r5jpYiYWzhqJ48&m=l7c4IPL049A2bVVO14fyBMly211xU61xSHgPlAT7owI&s=t7vG >IH8ABuAm00e-bkSowD9eawModGq0N2OkjANtpYI&e= > >_______________________________________________ >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
