module org-openroadm-prot-otn-linear-aps {
  namespace "http://org/openroadm/prot/otn-linear-aps";
  prefix org-openroadm-prot-otn-linear-aps;

  import org-openroadm-device {
    prefix org-openroadm-device;
    revision-date 2018-10-19;
  }
  import org-openroadm-common-types {
    prefix org-openroadm-common-types;
    revision-date 2018-10-19;
  }

  organization
    "Open ROADM MSA";
  contact
    "OpenROADM.org";
  description
    "YANG definitions for device facility OTN linear APS protection groups.

     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
     AT&T Intellectual Property.  All other rights reserved.

     Redistribution and use in source and binary forms, with or without modification,
     are permitted provided that the following conditions are met:

     * Redistributions of source code must retain the above copyright notice, this
       list of conditions and the following disclaimer.
     * Redistributions in binary form must reproduce the above copyright notice,
       this list of conditions and the following disclaimer in the documentation and/or
       other materials provided with the distribution.
     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
       contributors may be used to endorse or promote products derived from this software
       without specific prior written permission.

     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     POSSIBILITY OF SUCH DAMAGE.

     Also contains code components extracted from IETF Interfaces.  These code components
     are copyrighted and licensed as follows:

     Copyright (c) 2016 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.";

  revision 2018-10-19 {
    description
      "Version 2.2.1";
  }
  revision 2017-12-15 {
    description
      "Version 2.2";
  }
  revision 2017-09-29 {
    description
      "Version 2.1";
  }
  revision 2017-07-28 {
    description
      "Version 2.0.1 - added revision-date to imports";
  }
  revision 2017-06-26 {
    description
      "Version 2.0";
  }

  identity otn-protection-type {
    description
      "OTN base protection identity from which
         specific protection types are derived.";
  }

  identity odu-one-plus-one {
    base otn-protection-type;
    description
      "ODU Linear Protection 1+1 permanant bridge";
  }

  grouping odu-sncp-protection-grps {
    list odu-sncp-pg {
      key "name";
      leaf name {
        type string;
        description
          "The odu-sncp-protection-group name";
      }
      leaf level {
        type enumeration {
          enum "line" {
            value 1;
          }
          enum "path" {
            value 2;
          }
        }
        mandatory true;
        description
          "Designates protection group as Line or Path";
      }
      leaf prot-type {
        type identityref {
          base otn-protection-type;
        }
        default "odu-one-plus-one";
        description
          "The type of the protection group.";
      }
      leaf switching-direction {
        type enumeration {
          enum "unidirectional-switching" {
            value 1;
          }
          enum "bidirectional-switching" {
            value 2;
          }
        }
        default "unidirectional-switching";
        description
          "Bidirectional refers to APS signaling enabled (G.873.1 Table 7-1 Table 8-1).";
      }
      leaf revertive {
        type boolean;
        default "false";
        description
          "Sets reversion behavior.";
      }
      leaf mode {
        type enumeration {
          enum "SNC/Ne" {
            value 1;
            description
              "applicable to line or path switching";
          }
          enum "SNC/Ns" {
            value 2;
            description
              "applicable to line or path switching";
          }
          enum "SNC/S" {
            value 3;
            description
              "applicable to line or path switching";
          }
          enum "SNC/I" {
            value 4;
            description
              "applicable to line switching only";
          }
          enum "CL-SNCG/I" {
            value 5;
            description
              "applicable to line switching only";
          }
        }
        mandatory true;
        description
          "Sets the protection mode";
      }
      leaf protection-trigger-level {
        type enumeration {
          enum "OTUk/ODUkA-SSF-SSD" {
            value 1;
            description
              "applicable to SNC/I";
          }
          enum "ODUkP/ODUjA-SSF-SSD" {
            value 2;
            description
              "applicable to CL-SNCG/I";
          }
          enum "ODUP-SSF-SSD" {
            value 3;
            description
              "applicable to SNC/Ne";
          }
          enum "ODUT1" {
            value 4;
            description
              "applicable to SNC/Ns or SNC/S";
          }
          enum "ODUT2" {
            value 5;
            description
              "applicable to SNC/Ns or SNC/S";
          }
          enum "ODUT3" {
            value 6;
            description
              "applicable to SNC/Ns or SNC/S";
          }
          enum "ODUT4" {
            value 7;
            description
              "applicable to SNC/Ns or SNC/S";
          }
          enum "ODUT5" {
            value 8;
            description
              "applicable to SNC/Ns or SNC/S";
          }
          enum "ODUT6" {
            value 9;
            description
              "applicable to SNC/Ns or SNC/S";
          }
        }
        description
          "Indicates switch trigger.";
      }
      leaf wait-to-restore {
        when "../revertive = 'true'";
        type uint8 {
          range "1..12";
        }
        units "minutes";
        default "5";
        description
          "Wait to restore time in minutes";
      }
      container holdoff-timer {
        leaf holdoff {
          type uint8 {
            range "0 | 20 | 100";
          }
          units "milliseconds";
          default "0";
          description
            "switch hold-off time in milliseconds";
        }
        leaf holdoff-multiplier {
          when "../holdoff= 100";
          type uint8 {
            range "1 .. 100";
          }
          default "1";
          description
            "switch holdoff time multiplier x100 milliseconds";
        }
      }
      leaf working-if {
        type leafref {
          path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
        }
        mandatory true;
        description
          "Designated work interface";
      }
      leaf-list pg-interfaces {
        type leafref {
          path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
        }
        min-elements 1;
        description
          "List of interfaces in the PG";
      }
      leaf active-if {
        type leafref {
          path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
        }
        config false;
        description
          "Active interface in the PG";
      }
    }
  }

  rpc odu-sncp-protection-switch {
    description
      "ODU SNCP Protection Switch RPC with synchronous implementation";
    input {
      leaf protection-group {
        type leafref {
          path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:protection-grps/org-openroadm-prot-otn-linear-aps:odu-sncp-pg/org-openroadm-prot-otn-linear-aps:name";
        }
        mandatory true;
        description
          "Target protection group";
      }
      leaf pg-interface {
        type leafref {
          path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
        }
        mandatory true;
        description
          "Target protection group interface";
      }
      leaf switch-command {
        type enumeration {
          enum "Lock-Out-Protect" {
            value 1;
          }
          enum "Force-Switch" {
            value 2;
          }
          enum "Manual-Switch" {
            value 3;
          }
          enum "Release" {
            value 4;
          }
        }
      }
    }
    output {
      uses org-openroadm-common-types:rpc-response-status;
    }
  }
  notification odu-sncp-pg-switch-event {
    leaf switch-status {
      type enumeration {
        enum "switched-to-protect" {
          value 1;
        }
        enum "switched-back-to-working" {
          value 2;
        }
      }
      description
        "Completed protection switch";
    }
    leaf odu-sncp-pg-name {
      type string;
      description
        "The odu-sncp-protection-group name";
    }
  }
  augment "/org-openroadm-device:org-openroadm-device/org-openroadm-device:protection-grps" {
    uses odu-sncp-protection-grps;
  }
}