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ietf-origin@2018-02-14



  module ietf-origin {

    yang-version 1.1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-origin";

    prefix or;

    import ietf-yang-metadata {
      prefix md;
    }

    organization
      "IETF Network Modeling (NETMOD) Working Group";

    contact
      "WG Web:   <https://datatracker.ietf.org/wg/netmod/>

WG List:  <mailto:netmod@ietf.org>

Author:   Martin Bjorklund
	  <mailto:mbj@tail-f.com>

Author:   Juergen Schoenwaelder
	  <mailto:j.schoenwaelder@jacobs-university.de>

Author:   Phil Shafer
	  <mailto:phil@juniper.net>

Author:   Kent Watsen
	  <mailto:kwatsen@juniper.net>

Author:   Rob Wilton
	  <rwilton@cisco.com>";

    description
      "This YANG module defines an 'origin' metadata annotation and a
set of identities for the origin value.

Copyright (c) 2018 IETF Trust and the persons identified as
authors of the code.  All rights reserved.

Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Simplified BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).

This version of this YANG module is part of RFC 8342
(https://www.rfc-editor.org/info/rfc8342); see the RFC itself
for full legal notices.";

    revision "2018-02-14" {
      description "Initial revision.";
      reference
        "RFC 8342: Network Management Datastore Architecture (NMDA)";

    }

    md:annotation "origin" {
      type "origin-ref";
      description "The 'origin' annotation can be present on any configuration
data node in the operational state datastore.  It specifies
from where the node originated.  If not specified for a given
configuration data node, then the origin is the same as the
origin of its parent node in the data tree.  The origin for
any top-level configuration data nodes must be specified.";
    }

    identity origin {
      base 
      description
        "Abstract base identity for the origin annotation.";
    }

    identity intended {
      base origin;
      description
        "Denotes configuration from the intended configuration
datastore.";
    }

    identity dynamic {
      base origin;
      description
        "Denotes configuration from a dynamic configuration
datastore.";
    }

    identity system {
      base origin;
      description
        "Denotes configuration originated by the system itself.

Examples of system configuration include applied configuration
for an always-existing loopback interface, or interface
configuration that is auto-created due to the hardware
currently present in the device.";
    }

    identity learned {
      base origin;
      description
        "Denotes configuration learned from protocol interactions with
other devices, instead of via either the intended
configuration datastore or any dynamic configuration
datastore.

Examples of protocols that provide learned configuration
include link-layer negotiations, routing protocols, and
DHCP.";
    }

    identity default {
      base origin;
      description
        "Denotes configuration that does not have a configured or
learned value but has a default value in use.  Covers both
values defined in a 'default' statement and values defined
via an explanation in a 'description' statement.";
    }

    identity unknown {
      base origin;
      description
        "Denotes configuration for which the system cannot identify the
origin.";
    }

    typedef origin-ref {
      type identityref {
        base origin;
      }
      description
        "An origin identity reference.";
    }
  }  // module ietf-origin