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CCAMP Working Group                                     Y. Lee (Editor)
Internet Draft                                                Futurewei
Intended status: Standard Track
Expires: January 5, 2020                                       D. Dhody
                                                                 Huawei

                                                                 A. Guo
                                                              Futurewei

                                                               V. Lopez
                                                             Telefonica

                                                                D. King
                                                        U. of Lancaster



                                                           July 5, 2019

     A YANG Data Model for WSON (Wavelength Switched Optical Networks)


                       draft-ietf-ccamp-wson-yang-22


Abstract

   This document provides a YANG data model for the routing and
   wavelength assignment (RWA) TE topology in wavelength switched
   optical networks (WSONs). The YANG data model defined in this
   document conforms to the Network Management Datastore Architecture
   defined in RFC 8342.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with
   the provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents
   at any time.  It is inappropriate to use Internet-Drafts as
   reference material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html
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   This Internet-Draft will expire on January 5, 2020.

Copyright Notice



   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.



   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with
   respect to this document.  Code Components extracted from this
   document must include Simplified BSD License text as described in
   Section 4.e of the Trust Legal Provisions and are provided without
   warranty as described in the Simplified BSD License.

Table of Contents


   1. Introduction...................................................2
      1.1. Requirements Language.....................................3
      1.2. Terminology...............................................3
      1.3. Tree diagram..............................................4
      1.4. Prefixes in Data Node Names...............................4
   2. YANG Model (Tree Structure)....................................5
   3. IETF-WSON-Topology YANG Model.................................28
   4. Security Considerations.......................................67
   5. IANA Considerations...........................................69
   6. References....................................................69
      6.1. Normative References.....................................69
      6.2. Informative References...................................70
   7. Contributors..................................................71
   Authors' Addresses...............................................71

1. Introduction

   This document provides a YANG data model for the routing and
   wavelength assignment (RWA) Traffic Engineering (TE) topology in
   transparent wavelength switched optical networks (WSONs). The YANG
   model described in this document is a WSON technology-specific YANG
   model based on the information model developed in [RFC7446] and the



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   two encoding documents [RFC7581] and [RFC7579] that developed
   protocol independent encodings based on [RFC7446].

   [G.698.2] defines amplified multichannel dense wavelength division
   multiplexing applications with single channel optical interfaces.
   The YANG data model defined in this document refers to the standard
   application mode defined in [G.698.2].

   What is not in scope of this document is both impairment-aware
   optical networks and flexi-grid. Refer to [Impairment] for
   impairement-aware optical network topology model and [flexi-grid]
   for flexi-grid optical network topology model.

   Additionally, resource block models (e.g., 3R Regeneration) is not
   also in the scope of this document, which will be addressed in a
   separate document.

   This document defines one YANG model: ietf-wson-topology (Section
   3). This document augments the generic TE topology draft [TE-TOPO].

   There are multiple applications for the yang data model defined in
   this document. For example, nodes within the network can use the
   data model to capture their understanding of the overall WSON
   topology and expose it to a controller.  A controller can further
   propagate the topology to other controllers. The YANG model is used
   by NETCONF [RFC6020], [RFC8341] or a RESTCONF [RFC8040] protocol.
   The YANG data model defined in this document conforms to the Network
   Management Datastore Architecture [RFC8342].

1.1. Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in  BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.


1.2. Terminology

   Refer to [RFC7446] and [RFC7581] for the key terms used in this
   document.

   The following terms are defined in [RFC7950] and are not redefined
   here:




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   o client

   o server

   o augment

   o data model

   o data node

   The following terms are defined in [RFC6241] and are not redefined
   here:

   o  configuration data

   o  state data

   The terminology for describing YANG data models is found in
   [RFC7950].

1.3. Tree diagram

   A simplified graphical representation of the data model is used in
   chapter 2 of this this document.  The meaning of the symbols in
   these diagrams is defined in [RFC8340].

1.4. Prefixes in Data Node Names

   In this document, names of data nodes and other data model objects
   are prefixed using the standard prefix associated with the
   corresponding YANG imported modules, as shown in Table 1.


      +-------------+-------------------------+-----------------+
      | Prefix      | YANG module             | Reference       |
      +-------------+-------------------------+-----------------+
      | layer0-type | ietf-layer0-types       | [Layer0-Types]  |
      | wson        | ietf-wson-topology      | [RFCXXXX]       |
      | nw          | ietf-network            | [RFC8345]       |
      | nt          | ietf-network-topology   | [RFC8345]       |
      | tet         | ietf-te-topology        | [TE-TOPO]       |
      +-------------+-------------------------+-----------------+

             Table 1: Prefixes and corresponding YANG modules

   Note: The RFC Editor will replace XXXX with the number assigned to
   the RFC once this draft becomes an RFC.


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2. YANG Model (Tree Structure)


module: ietf-wson-topology
  augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
    +--rw wson-topology!
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes:
  augment /nw:networks/nw:network/nw:node/nt:termination-point/tet:te:
    +--rw supported-payload-types* [index]
    |  +--rw index           uint16
    |  +--rw payload-type?   string
    +--rw client-facing?             boolean
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes:
    +--rw wson-node
       +--rw node-type?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point:
    +--rw supported-operational-modes*    layer0-types:operational-mode
    +--rw configured-operational-modes?   layer0-types:operational-mode
    +--rw supported-fec-types*            identityref
    +--rw supported-termination-types*    identityref
    +--rw supports-bit-stuffing?          boolean
    +--rw is-tunable?                     boolean
    +--rw max-subcarrier-channel-num?     uint8
  augment /nw:networks/nw:network/nw:node/nt:termination-
point/tet:te/tet:interface-switching-capability/tet:max-lsp-
bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw bandwidth-type?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:path-constraints/tet:te-
bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-matrix/tet:path-
constraints/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref


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  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:path-constraints/tet:te-
bandwidth/tet:technology:
    +--:(wson)
       +--ro supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:path-constraints/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--ro supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:client-layer-adaptation/tet:switching-
capability/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:path-
constraints/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:path-constraints/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:interface-switching-capability/tet:max-lsp-
bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw bandwidth-type?   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:max-link-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:max-resv-link-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:unreserved-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)


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       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:interface-switching-capability/tet:max-lsp-
bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--ro bandwidth-type?   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:max-link-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--ro supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:max-resv-link-bandwidth/tet:te-
bandwidth/tet:technology:
    +--:(wson)
       +--ro supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:unreserved-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--ro supported-bandwidth-list*   identityref
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:interface-switching-capability/tet:max-lsp-
bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw bandwidth-type?   identityref
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:max-link-bandwidth/tet:te-bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:max-resv-link-bandwidth/tet:te-
bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:unreserved-bandwidth/tet:te-
bandwidth/tet:technology:
    +--:(wson)
       +--rw supported-bandwidth-list*   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:label-restrictions/tet:label-
restriction:


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    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:label-restrictions/tet:label-
restriction/tet:label-start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:label-restrictions/tet:label-
restriction/tet:label-end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:label-restrictions/tet:label-
restriction/tet:label-step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:underlay/tet:primary-
path/tet:path-element/tet:type/tet:label/tet:label-hop/tet:te-
label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16


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          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:underlay/tet:backup-
path/tet:path-element/tet:type/tet:label/tet:label-hop/tet:te-
label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-
matrices/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-
matrices/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)


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          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:path-properties/tet:path-
route-objects/tet:path-route-object/tet:type/tet:label/tet:label-
hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction:
    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)


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          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction:
    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-



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matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:


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    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-
matrix/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-
attributes/tet:connectivity-matrices/tet:connectivity-matrix/tet:path-
properties/tet:path-route-objects/tet:path-route-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16





Lee, et al.              Expires January 2020                 [Page 13]


Internet-Draft             WSON YANG Model                    July 2019


  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:label-
restrictions/tet:label-restriction:
    +--ro grid-type?   identityref
    +--ro priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:label-
restrictions/tet:label-restriction/tet:label-start/tet:te-
label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:label-
restrictions/tet:label-restriction/tet:label-end/tet:te-
label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:label-
restrictions/tet:label-restriction/tet:label-step/tet:technology:
    +--:(wson)
       +--ro (layer0-grid-type)?
          +--:(dwdm)
          |  +--ro wson-dwdm?   identityref
          +--:(cwdm)
             +--ro wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:underlay/tet:primary-
path/tet:path-element/tet:type/tet:label/tet:label-hop/tet:te-
label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)


Lee, et al.              Expires January 2020                 [Page 14]


Internet-Draft             WSON YANG Model                    July 2019


          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:underlay/tet:backup-
path/tet:path-element/tet:type/tet:label/tet:label-hop/tet:te-
label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-
matrices/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-
matrices/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:


Lee, et al.              Expires January 2020                 [Page 15]


Internet-Draft             WSON YANG Model                    July 2019


    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:path-properties/tet:path-
route-objects/tet:path-route-object/tet:type/tet:label/tet:label-
hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction:
    +--ro grid-type?   identityref
    +--ro priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-


Lee, et al.              Expires January 2020                 [Page 16]


Internet-Draft             WSON YANG Model                    July 2019


matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:from/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--ro (layer0-grid-type)?
          +--:(dwdm)
          |  +--ro wson-dwdm?   identityref
          +--:(cwdm)
             +--ro wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction:
    +--ro grid-type?   identityref
    +--ro priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16


Lee, et al.              Expires January 2020                 [Page 17]


Internet-Draft             WSON YANG Model                    July 2019


          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:to/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--ro (layer0-grid-type)?
          +--:(dwdm)
          |  +--ro wson-dwdm?   identityref
          +--:(cwdm)
             +--ro wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16



Lee, et al.              Expires January 2020                 [Page 18]


Internet-Draft             WSON YANG Model                    July 2019


  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:optimizations/tet:algorithm/tet:metric/tet:optimization-
metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:information-
source-entry/tet:connectivity-matrices/tet:connectivity-
matrix/tet:path-properties/tet:path-route-objects/tet:path-route-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)


Lee, et al.              Expires January 2020                 [Page 19]


Internet-Draft             WSON YANG Model                    July 2019


          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:label-
restrictions/tet:label-restriction:
    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:label-
restrictions/tet:label-restriction/tet:label-start/tet:te-
label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:label-
restrictions/tet:label-restriction/tet:label-end/tet:te-
label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:label-
restrictions/tet:label-restriction/tet:label-step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-
connectivities/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:


Lee, et al.              Expires January 2020                 [Page 20]


Internet-Draft             WSON YANG Model                    July 2019


    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-
connectivities/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-
connectivities/tet:optimizations/tet:algorithm/tet:metric/tet:optimizat
ion-metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-


Lee, et al.              Expires January 2020                 [Page 21]


Internet-Draft             WSON YANG Model                    July 2019


connectivities/tet:optimizations/tet:algorithm/tet:metric/tet:optimizat
ion-metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:path-
properties/tet:path-route-objects/tet:path-route-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:label-restrictions/tet:label-restriction:
    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)


Lee, et al.              Expires January 2020                 [Page 22]


Internet-Draft             WSON YANG Model                    July 2019


             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?


Lee, et al.              Expires January 2020                 [Page 23]


Internet-Draft             WSON YANG Model                    July 2019


          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:optimizations/tet:algorithm/tet:metric/tet:optimizatio
n-metric/tet:explicit-route-exclude-objects/tet:route-object-exclude-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-
connectivity/tet:optimizations/tet:algorithm/tet:metric/tet:optimizatio
n-metric/tet:explicit-route-include-objects/tet:route-object-include-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nw:node/tet:te/tet:tunnel-
termination-point/tet:local-link-connectivities/tet:local-link-



Lee, et al.              Expires January 2020                 [Page 24]


Internet-Draft             WSON YANG Model                    July 2019


connectivity/tet:path-properties/tet:path-route-objects/tet:path-route-
object/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro (single-or-super-channel)?
          |     +--:(single)
          |     |  +--ro dwdm-n?              int16
          |     +--:(super)
          |        +--ro subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--ro cwdm-n?                    int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:label-restrictions/tet:label-restriction:
    +--rw grid-type?   identityref


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    +--rw priority?    uint8
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-
attributes/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:label-restrictions/tet:label-restriction:
    +--ro grid-type?   identityref
    +--ro priority?    uint8
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16


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  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--ro (grid-type)?
          +--:(dwdm)
          |  +--ro dwdm-n?   int16
          +--:(cwdm)
             +--ro cwdm-n?   int16
  augment /nw:networks/nw:network/nt:link/tet:te/tet:information-
source-entry/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--ro (layer0-grid-type)?
          +--:(dwdm)
          |  +--ro wson-dwdm?   identityref
          +--:(cwdm)
             +--ro wson-cwdm?   identityref
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:underlay/tet:primary-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)
          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:underlay/tet:backup-path/tet:path-
element/tet:type/tet:label/tet:label-hop/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw (single-or-super-channel)?
          |     +--:(single)
          |     |  +--rw dwdm-n?              int16
          |     +--:(super)


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          |        +--rw subcarrier-dwdm-n*   int16
          +--:(cwdm)
             +--rw cwdm-n?                    int16
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:label-restrictions/tet:label-restriction:
    +--rw grid-type?   identityref
    +--rw priority?    uint8
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:label-restrictions/tet:label-restriction/tet:label-
start/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:label-restrictions/tet:label-restriction/tet:label-
end/tet:te-label/tet:technology:
    +--:(wson)
       +--rw (grid-type)?
          +--:(dwdm)
          |  +--rw dwdm-n?   int16
          +--:(cwdm)
             +--rw cwdm-n?   int16
  augment /nw:networks/tet:te/tet:templates/tet:link-template/tet:te-
link-attributes/tet:label-restrictions/tet:label-restriction/tet:label-
step/tet:technology:
    +--:(wson)
       +--rw (layer0-grid-type)?
          +--:(dwdm)
          |  +--rw wson-dwdm?   identityref
          +--:(cwdm)
             +--rw wson-cwdm?   identityref
3. IETF-WSON-Topology YANG Model

<CODE BEGINS> file ietf-wson-topology@2019-02-27.yang

module ietf-wson-topology {

  yang-version 1.1;




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  namespace "urn:ietf:params:xml:ns:yang:ietf-wson-topology";

  prefix "wson";

  import ietf-network {
    prefix "nw";
    reference
      "RFC 8345: A YANG Data Model for Network Topologies";
  }

  import ietf-network-topology {
    prefix "nt";
    reference
      "RFC 8345: A YANG Data Model for Network Topologies";
  }

  import ietf-te-topology {
    prefix "tet";
    reference
      "RFC YYYY: YANG Data Model for
       Traffic Engineering (TE) Topologies";
  }

  /* Note: The RFC Editor will replace YYYY with the number assigned to
   the RFC once draft-ietf-teas-yang-te-topo becomes an RFC.*/

  import ietf-layer0-types {
    prefix "layer0-types";
    reference
      "RFC XXXX: A YANG Data Model for WSON
       (Wavelength Switched Optical Networks)";
  }

/* Note: The RFC Editor will replace XXXX with the number assigned to
   the RFC once draft-ietf-ccamp-wson-yang becomes an RFC.*/

  organization
    "IETF CCAMP Working Group";

  contact
    "Editor:   Young Lee  <leeyoung@huawei.com>
     Editor:   Aihua Guo  <aihuaguo@huawei.com>";

  description
    "This module provides a YANG data model for the routing and
     wavelength assignment (RWA) Traffic Engineering (TE)
     topology in wavelength switched optical networks (WSONs).
     The YANG model described in this document is a WSON
     technology-specific YANG model augmenting the generic TE



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     topology module (ietf-te-topology) based on the information
     model developed in RFC 7446 and the two encoding documents
     RFC 7581 and RFC 7579 that developed protocol independent
     encodings based on RFC 7446.
.

     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
     (http://trustee.ietf.org/license-info).";

  revision 2019-02-27 {
    description
      "Initial Version";

    reference
      "RFC XXXX: A YANG Data Model for WSON (Wavelength Switched
       Optical Networks)";
  }

  /*
   * Groupings
   */
  grouping wson-node-attributes {
    description "WSON node attributes";
    container wson-node {
      description "WSON node attrtibutes";
      leaf node-type {
        type identityref {
          base layer0-types:layer0-node-type;
        }
        description "WSON node type";
      }
    }
  }

  grouping wson-link-attributes {
    description
      "Future WSON link attributes extensions";
  }

  grouping wson-tp-attributes {
    description "wson-tp-attributes";




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    list supported-payload-types {
      key "index";
      description
        "Supported payload types of a TP (Termination Point).
         The payload type is defined as the generalized PIDs
         (Payload Identifiers) in GMPLS";
      leaf index {
        type uint16;
        description "payload type index";
      }
      leaf payload-type {
        type string;
        description "the payload type supported by this client TP";
        reference
          "http://www.iana.org/assignments/gmpls-sig-parameters
           /gmpls-sig-parameters.xhtml";
      }
    }
    leaf client-facing {
      type boolean;
      default 'false';
      description
        "Indicates if it is a client-facing TP";
    }
  }

  grouping wson-ttp-attributes {
    description
      "WSON tunnel termination point (e.g., tranponder) attributes";

    leaf-list supported-operational-modes {
      type layer0-types:operational-mode;
      description
        "List of all supported vendor-specific
         mode identifiers";
    }

    leaf configured-operational-modes {
      type layer0-types:operational-mode;
      description
        "Vendor-specific mode identifier configured
         on the TTP (TE-tunnel Termination Point)";
    }

    leaf-list supported-fec-types {
      type identityref {
        base layer0-types:fec-type;
      }
       description



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         "List of all supported FEC (Forward Error Correction)
          types by this TTP";
    }

    leaf-list supported-termination-types {
      type identityref {
        base layer0-types:term-type;
      }
        description
          "List of all supported termination types by this TTP";
    }

    leaf supports-bit-stuffing {
       type boolean;
       description
         "Indicates whether bit stuffing is supported by this TTP";
    }

    leaf is-tunable {
      type boolean;
      description
   "Indicates if the TTP, or transponder, is tunable. Tunable
         transponders are assumed to be fully tunable to any of the
         96 channels within DWDM C-band";
    }

    leaf max-subcarrier-channel-num {
      type uint8 {
        range "1..max";
      }
      default 1;
      description
   "Indicates the maximum number of subcarrier channels for
         super-channel transponders. When the value equals 1 it
         represents regular single-channel transponder";
    }
  }

  /*
   * Data nodes
   */

  augment "/nw:networks/nw:network/nw:network-types"
   + "/tet:te-topology" {
      description "wson-topology augmented";
      container wson-topology {
        presence "indicates a topology of WSON";
        description
          "Container to identify WSON topology type";



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      }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te"
        + "/tet:te-link-attributes"   {
    when "/nw:networks/nw:network/nw:network-types"
        +"/tet:te-topology/wson:wson-topology" {
       description "This augment is only valid for WSON";
    }
    description "WSON Link augmentation.";
    uses wson-link-attributes;
  }

  augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
        + "tet:te" {
    when "/nw:networks/nw:network/nw:network-types"
        +"/tet:te-topology/wson:wson-topology" {
       description "This augment is only valid for WSON";
    }
    description "WSON TP attributes";
    uses wson-tp-attributes;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te"
        + "/tet:te-node-attributes" {
    when "/nw:networks/nw:network/nw:network-types"
       +"/tet:te-topology/wson:wson-topology" {
       description "This augment is only valid for WSON";
    }
    description "WSON Node augmentation";
    uses wson-node-attributes;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te"
        + "/tet:tunnel-termination-point" {
    when "/nw:networks/nw:network/nw:network-types"
       +"/tet:te-topology/wson:wson-topology" {
      description "This augment is only valid for WSON";
    }
    description "WSON tunnel termination point augmentation";
    uses wson-ttp-attributes;
  }

  /*
   * Augment TE bandwidth
   */

  augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
        + "tet:te/"



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        + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment maximum LSP WSON bandwidth of link termination point
       (LTP)";
    case wson {
      uses layer0-types:wson-path-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"



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       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:client-layer-adaptation/tet:switching-capability/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment client WSON bandwidth of tunnel termination point
       (TTP)";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/tet:path-constraints/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {



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      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/tet:path-constraints/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE bandwidth";
    }
    description
      "Augment WSON bandwidth path constraints of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description "Augment maximum LSP WSON bandwidth of TE link";
    case wson {
      uses layer0-types:wson-path-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:max-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }



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    description
      "Augment maximum WSON bandwidth of TE link";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:max-resv-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment maximum reservable WSON bandwidth of
       TE link";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:unreserved-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment unreserved WSON bandwidth of TE Link";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:interface-switching-capability/"
        + "tet:max-lsp-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment maximum LSP WSON bandwidth of TE link



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       information-source";
    case wson {
      uses layer0-types:wson-path-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:max-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment maximum WSON bandwidth of TE link
       information-source";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:max-resv-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment maximum reservable WSON bandwidth of TE link
       information-source";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:unreserved-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "WSON TE bandwidth";
    }
    description
      "Augment unreserved WSON bandwidth of TE link
       information-source";



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    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:interface-switching-capability/"
        + "tet:max-lsp-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    description
      "Augment maximum WSON LSP bandwidth of TE link
       template";
    case wson {
      uses layer0-types:wson-path-bandwidth;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:max-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    description
      "Augment maximum WSON bandwidth of TE link template";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:max-resv-link-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    description
      "Augment maximum reservable WSON bandwidth of TE link
       template";
    case wson {
      uses layer0-types:wson-link-bandwidth;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:unreserved-bandwidth/"
        + "tet:te-bandwidth/tet:technology" {
    description
      "Augment unreserved WSON bandwidth of TE link template";
    case wson {
      uses layer0-types:wson-link-bandwidth;



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    }
  }

  /*
   * Augment TE label.
   */

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions of connectivity-matrices";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:label-restrictions/"
        + "tet:label-restriction/tet:label-end/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of
       connectivity-matrices";



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    case wson {
      uses layer0-types:wson-link-label;
    }
  }
  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:label-restrictions/"
        + "tet:label-restriction/tet:label-step/"
        + "tet:technology" {
    when "../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions step of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }
  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:underlay/tet:primary-path/tet:path-element/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:underlay/tet:backup-path/tet:path-element/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }



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    description
      "Augment WSON label hop of underlay backup path of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-exclude of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-include of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }



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  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology"{
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of
       connectivity-matrices";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:from/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions of
       connectivity-matrix";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:from/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions start of
       connectivity-matrix ";
    case wson {



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      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:from/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions end of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:from/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/"
        + "tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions step of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:to/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {



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      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions of
       connectivity-matrix";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:to/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions start of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:to/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions end of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:to/"



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        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/"
        + "tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions step of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:underlay/tet:primary-path/tet:path-element/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:underlay/tet:backup-path/tet:path-element/"
        + "tet:type/tet:label/tet:label-hop/"
        + "tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay backup path of
       connectivity-matrix";



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    case wson {
      uses layer0-types:wson-path-label;
    }
  }
  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:optimizations/"
        + "tet:algorithm/tet:metric/tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-exclude of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/tet:optimizations/"
        + "tet:algorithm/tet:metric/tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-include of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:te-node-attributes/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/"



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        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of
       connectivity-matrix";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/"
        + "tet:connectivity-matrices/tet:label-restrictions/"
        + "tet:label-restriction" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions of connectivity-matrices
       information-source";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/"
        + "tet:connectivity-matrices/tet:label-restrictions/"
        + "tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/"
        + "tet:connectivity-matrices/tet:label-restrictions/"



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        + "tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/"
        + "tet:connectivity-matrices/tet:label-restrictions/"
        + "tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    when "../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions step of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }



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  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment label hop of underlay backup path of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-exclude of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";



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    }
    description
      "Augment WSON label hop of route-include of
       connectivity-matrices information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of connectivity-matrices
       information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:from/tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions of
       connectivity-matrix information-source";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:from/tet:label-restrictions/"
        + "tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"



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       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions start of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }
  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:from/tet:label-restrictions/"
        + "tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions end of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:from/tet:label-restrictions/"
        + "tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment ingress WSON label restrictions step of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }




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  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:to/tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions of connectivity-matrix
       information-source";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:to/tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions start of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:to/tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions end of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }



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  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:to/tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment egress WSON label restrictions step of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description



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      "Augment WSON label hop of underlay backup path of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment label hop of route-exclude of connectivity-matrix
       information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-include of
       connectivity-matrix information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }




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  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:information-source-entry/tet:connectivity-matrices/"
        + "tet:connectivity-matrix/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of connectivity-matrix
       information-source";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions of
       local-link-connectivities";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
      + "tet:tunnel-termination-point/"
      + "tet:local-link-connectivities/"
      + "tet:label-restrictions/tet:label-restriction/"
      + "tet:label-start/"
      + "tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-link-label;



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    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/"
        + "tet:te-label/tet:technology"{
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/"
        + "tet:technology"{
    when "../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions step of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {



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      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay backup path of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-exclude of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }




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  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment label hop of route-include of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of
       local-link-connectivities";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }



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    description
      "Augment WSON label restrictions of
       local-link-connectivity (LLC)";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:label-restrictions/tet:label-restriction/"



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        + "tet:label-step/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions step of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay backup path of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-path-label;



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    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-exclude-objects/"
        + "tet:route-object-exclude-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-exclude of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"
        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:optimizations/tet:algorithm/tet:metric/"
        + "tet:optimization-metric/"
        + "tet:explicit-route-include-objects/"
        + "tet:route-object-include-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of route-include of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nw:node/tet:te/"
        + "tet:tunnel-termination-point/"



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        + "tet:local-link-connectivities/"
        + "tet:local-link-connectivity/"
        + "tet:path-properties/tet:path-route-objects/"
        + "tet:path-route-object/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of path-route of
       local-link-connectivity (LLC)";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }
  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay primary path of TE link";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    when "../../../../../../../../"
       + "nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label hop of underlay backup path of TE link";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }




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  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions of TE link";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of TE link";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of TE link";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";



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    }
    description
      "Augment WSON label restrictions step of TE link";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:label-restrictions/tet:label-restriction" {
    when "../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions of TE link
       information-source";
    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions start of TE link
       information-source";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    when "../../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions end of TE link
       information-source";
    case wson {



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      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/nw:network/nt:link/tet:te/"
        + "tet:information-source-entry/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    when "../../../../../../nw:network-types/tet:te-topology/"
       + "wson:wson-topology" {
      description "Augment WSON TE label";
    }
    description
      "Augment WSON label restrictions step of TE link
       information-source";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    description
      "Augment WSON label hop of underlay primary path of TE link
       template";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
    description
      "Augment WSON label hop of underlay backup path of TE link
       template";
    case wson {
      uses layer0-types:wson-path-label;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction" {
    description
      "Augment WSON label restrictions of TE link template";



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    uses layer0-types:layer0-label-restriction;
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-start/tet:te-label/tet:technology" {
    description
      "Augment WSON label restrictions start of TE link template";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-end/tet:te-label/tet:technology" {
    description
      "Augment WSON label restrictions end of TE link template";
    case wson {
      uses layer0-types:wson-link-label;
    }
  }

  augment "/nw:networks/tet:te/tet:templates/"
        + "tet:link-template/tet:te-link-attributes/"
        + "tet:label-restrictions/tet:label-restriction/"
        + "tet:label-step/tet:technology" {
    description
      "Augment WSON label restrictions step of TE link template";
    case wson {
      uses layer0-types:wson-label-step;
    }
  }
}

<CODE ENDS>





4. Security Considerations

   The YANG module specified in this document defines a schema for data
   that is designed to be accessed via network management protocols
   such as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF



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   layer is the secure transport layer, and the mandatory-to-implement
   secure transport is Secure Shell (SSH) [RFC6242]. The lowest
   RESTCONF layer is HTTPS, and the mandatory-to-implement secure
   transport is TLS [RFC8446].

   The NETCONF access control model [RFC6536] provides the means to
   restrict access for particular NETCONF users to a preconfigured
   subset of all available NETCONF protocol operations and content. The
   NETCONF Protocol over Secure Shell (SSH) [RFC6242] describes a
   method for invoking and running NETCONF within a Secure Shell (SSH)
   session as an SSH subsystem. The Network Configuration Access
   Control Model (NACM) [RFC8341] provides the means to restrict access
   for particular NETCONF or RESTCONF users to a preconfigured subset
   of all available NETCONF or RESTCONF protocol operations and
   content.

   A number of configuration data nodes defined in this document are
   writable/deletable (i.e., "config true"). These data nodes may be
   considered sensitive or vulnerable in some network environments.

   There are a number of data nodes defined in this YANG module that
   are writable/creatable/deletable (i.e., config true, which is the
   default).  These data nodes may be considered sensitive or
   vulnerable in some network environments.  Write operations (e.g.,
   edit-config) to these data nodes without proper protection can have
   a negative effect on network operations.  These are the subtrees and
   data nodes and their sensitivity/vulnerability:

   /nw:networks/nw:network/nw:network-types/tet:te-topology

   /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes

   /nw:networks/nw:network/nw:node/nt:termination-point/tet:te

   /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
   /te-connectivity-matrices/te-connectivity-matrix/tet:path-
   constraints/tet:te-bandwidth/tet:technology

   /nw:networks/nw:network/nw:node/tet:te
   /tet:tunnel-termination-point/tet:local-link-connectivities
   /tet:label-restrictions/tet:label-restriction








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5. IANA Considerations

   This document registers the following namespace URIs in the IETF XML
   registry [RFC3688]:



   --------------------------------------------------------------------
      URI: urn:ietf:params:xml:ns:yang: ietf-wson-topology
      Registrant Contact: The IESG.
      XML: N/A, the requested URI is an XML namespace.
   --------------------------------------------------------------------


   This document registers the following YANG modules in the YANG
   Module Names registry [RFC7950] & [RFC6020]:

   --------------------------------------------------------------------
      name:         ietf-wson-topology
      namespace:    urn:ietf:params:xml:ns:yang:ietf-wson-topology
      reference:    RFC XXXX (TDB)
   --------------------------------------------------------------------


6. References

6.1. Normative References

   [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
             the Network Configuration Protocol (NETCONF)", RFC 6020,
             October 2010.

   [RFC6241] R. Enns, Ed., M. Bjorklund, Ed., J. Schoenwaelder, Ed.,
             "Network Configuration Protocol (NETCONF)", RFC 6241, June
             2011.

   [RFC6242] M. Wasserman, "Using the NETCONF Protocol over Secure
             Shell (SSH)", RFC 6242, June 2011.

   [RFC6536] A. Bierman, M. Bjorklund, "Network Configuration Protocol
             (NETCONF) Access Control Model", RFC 6536, March 2012.

   [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
             RFC 7950, August 2016.



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   [RFC8040] A. Bierman, M. Bjorklund, K. Watsen, "RESTCONF Protocol",
             RFC 8040, January 2017.

   [RFC8341] A. Bierman, M. Bjorklund, "Network Configuration Access
             Control Model", RFC 8341, March 2018.

   [RFC8446] E. Rescorla, "The Transport Layer Security (TLS) Protocol
             Version 1.3", RFC8446, August 2018.

   [TE-TOPO] X. Liu, et al., "YANG Data Model for TE Topologies", work
             in progress: draft-ietf-teas-yang-te-topo.

   [Layer0-Types]  Y. Lee, et al., "YANG Data Model for Layer0 Types",
             work in progress: draft-ietf-ccamp-layer0-types.

6.2. Informative References

   [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
             Requirement Levels", BCP 14, RFC 2119, DOI
             10.17487/RFC2119, March 1997, <https://www.rfc-
             editor.org/info/rfc2119>.

   [RFC3688] M. Mealling, "The IETF XML Registry", RFC 3688, January
             2004.

   [RFC6163] Y. Lee, Ed. G. Berstein, Ed., W. Imajuku, "Framework for
             GMPLS and Path Computation Element (PCE) Control of
             Wavelength Switched Optical Networks (WSONs)", RFC 6163,
             April 2011.

   [RFC6205] T. Otani, Ed., D. Li, Ed., "Generalized Labels for Lambda-
             Switch-Capable (LSC) Label Switching Routers", RFC 6205,
             March 2011.

   [RFC7446] Y. Lee, G. Bernstein, D. Li, W. Imajuku, "Routing and
             Wavelength Assignment Information Model for Wavelength
             Switched Optical Networks", RFC 7446, Feburary 2015.

   [RFC7579] G. Bernstein, Y. Lee, D. Li, W. Imajuku, "General Network
             Element Constraint Encoding for GMPLS Controlled
             Networks", RFC 7579, June 2015.

   [RFC7581] G. Bernstein, Y. Lee, D. Li, W. Imajuku, "Routing and
             Wavelength Assignment Information Encoding for Wavelength
             Switched Optical Networks", RFC 7581, June 2015.




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   [RFC7698] O. Gonzalez de Dios, Ed., R. Casellas, Ed., "Framework and
             Requirements for GMPLS-Based Control of Flexi-Grid Dense
             Wavelength Division Multiplexing (DWDM) Networks", RFC
             7698, November 2015.

   [RFC8340] M. Bjorklund and L. Berger, Ed., "YANG Tree Diagrams", RFC
             8340, March 2018.

   [RFC8342] M. Bjorklund, J. Schoenwaelder, P. Shafer, K. Watsen, R.
             Wilton, "Network Management Datastore Architecture
             (NMDA)", RFC 8342, March 2018.

   [RFC8345] A. Clemm, et al, "A YANG Data Model for Network
             Topologies", RFC 8345, March 2018.

   [G.698.2] "Amplified multichannel dense wavelength division
             multiplexing applications with single channel optical
             interfaces", ITU-T G.698.2 (11/2018).

7. Contributors


Authors' Addresses

   Young Lee (ed.)
   Futurewei Technologies
   Email: younglee.tx@gmail.com

   Dhruv Dhody
   Huawei Technologies
   Divyashree Techno Park, Whitefield
   Bangalore, Karnataka  560066
   India
   EMail: dhruv.ietf@gmail.com

   Aihua Guo
   Huawei Technologies
   Email: aguo@futurewei.com

   Victor Lopez
   Telefonica
   Email: victor.lopezalvarez@telefonica.com

   Daniel King



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   University of Lancaster
   Email: d.king@lancaster.ac.uk

   Bin Yeong Yoon
   ETRI
   218 Gaijeongro, Yuseong-gu
   Daejeon, Korea
   Email: byyun@etri.re.kr

   Ricard Vilalta
   CTTC
   Email: ricard.vilalta@cttc.es

   Italo Busi
   Huawei
   Email: Italo.Busi@huawei.com































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