Hi Lou, >From a high level perspective, schema mount looks really good in term of >simplification. I went to the draft quickly (very quickly), and I may see an >issue. Let's take the example of LNE, LNE may not have the exact same configuration statements as the physical host, as example some HW specific parameters that can only be configured on the physical host. In this case, when you mount the model into LNE, we need the ability to prune some subtree of the mounted tree. This pruning capacity does not seem to be taken into account yet.
Thoughts ? Best Regards, Stephane -----Original Message----- From: Rtg-dt-yang-arch [mailto:[email protected]] On Behalf Of Lou Berger Sent: Wednesday, February 24, 2016 03:40 To: Routing WG Cc: Routing Area YANG Architecture DT Subject: [Rtg-dt-yang-arch] Fwd: I-D Action: draft-rtgyangdt-rtgwg-device-model-03.txt Hello, This draft has been updated to use an emerging yang capability called 'schema-mount' [1] which translates to a significant simplification. To quote the draft: Schema Mount enables a dramatic simplification of the presented device model, particularly for "lower-end" devices which are unlikely to support multiple network instances or logical network elements. Should structural-mount/YSDL not be available, the more explicit tree structure presented in earlier versions of this document will need to be utilized. As it looks like there will soon be a netmod WG draft on schema mount, we think it's time to ask the WG to consider adopting our draft as a RTG WG draft. [1] There was a netmod interim on schema mount on Monday, see http://etherpad.tools.ietf.org:9000/p/netmod-interim-20160222 Our slides from that meeting are available at https://www.ietf.org/proceedings/interim/2016/02/22/netmod/slides/slides-interim-2016-netmod-1-1.pptx and it gives a brief overview of the current draft. Lou (and co-authors) -------- Forwarded Message -------- Subject: I-D Action: draft-rtgyangdt-rtgwg-device-model-03.txt Date: Tue, 23 Feb 2016 18:29:51 -0800 From: [email protected] Reply-To: [email protected] To: [email protected] A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Network Device YANG Organizational Models Authors : Acee Lindem Lou Berger Dean Bogdanovic Christan Hopps Filename : draft-rtgyangdt-rtgwg-device-model-03.txt Pages : 36 Date : 2016-02-23 Abstract: This document presents an approach for organizing YANG models in a comprehensive structure that may be used to configure and operate network devices. The structure is itself represented as a YANG model, with all of the related component models logically organized in a way that is operationally intuitive, but this model is not expected to be implemented. The identified component modules are expected to be defined and implemented on common network devices. This document also defines two modules that can be used to model the logical and virtual resource representations that may be present on a network device. Examples of common industry terms for logical resource representations are Logical Systems or Routers. Examples of of common industry terms for virtual resource representations are Virtual Routing and Forwarding (VRF) instances and Virtual Switch Instances (VSIs). This document is derived from work submitted to the IETF by members of the informal OpenConfig working group of network operators and is a product of the Routing Area YANG Architecture design team. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-rtgyangdt-rtgwg-device-model-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-rtgyangdt-rtgwg-device-model-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ I-D-Announce mailing list [email protected] https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt _______________________________________________ Rtg-dt-yang-arch mailing list [email protected] https://www.ietf.org/mailman/listinfo/rtg-dt-yang-arch _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. 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