module nokia-types-redundancy {

    yang-version 1.1;

    namespace
      "urn:nokia.com:sros:ns:yang:sr:types-redundancy";

    prefix types-redundancy;

    import ietf-yang-types {
      prefix yang;
    }
    import nokia-sros-yang-extensions {
      prefix sros-ext;
    }

    organization "Nokia";

    contact
      "Nokia SR OS Support
         Web: <http://www.nokia.com>";

    description
      "Common redundancy types data types used in the SR OS management system.

         Copyright 2016 Nokia. All rights reserved. Reproduction of this document
         is authorized on the condition that the foregoing copyright notice is included.

         This nokia-types-redundancy YANG module embodies Nokia's proprietary
         intellectual property. Nokia retains all title and ownership in the
         specification, including any revisions.

         Nokia grants all interested parties a non-exclusive license to use
         and distribute an unmodified copy of this specification in connection with
         management of Nokia products, and without fee, provided this
         copyright notice and license appear on all copies.

         This specification is supplied `as is', and Nokia makes no warranty,
         either express or implied, as to the use, operation, condition, or performance
         of the specification.";

    revision "2021-04-22";
    sros-ext:sros-major-release "rel22";

    typedef tunnel-group-id {
      type uint32 {
        range "1..64";
      }
      description
        "The identification number of a tunnel group.";
    }

    typedef tunnel-group-master-state {
      type enumeration {
        enum "discovery" {
          value 1;
          description
            "No election during initial peer discovery interval.";
        }
        enum "not-eligible" {
          value 2;
          description
            "No election, and not eligible for mastership.";
        }
        enum "eligible" {
          value 3;
          description
            "No election, but eligible for mastership.";
        }
        enum "standby" {
          value 4;
          description "Elected standby.";
        }
        enum "master" {
          value 5;
          description "Elected master.";
        }
      }
      description
        "Indicates the result of the mastership election between
             this tunnel group entity and its peer.";
    }

    typedef mc-ipsec-activity-state {
      type enumeration {
        enum "discovery" {
          value 1;
          description
            "No election during initial peer discovery interval.";
        }
        enum "not-eligible" {
          value 2;
          description
            "No election, and not eligible to be active.";
        }
        enum "eligible" {
          value 3;
          description
            "No election, but eligible to be active.";
        }
        enum "standby" {
          value 4;
          description "Elected standby.";
        }
        enum "active" {
          value 5;
          description "Elected active.";
        }
        enum "unkown" {
          value 6;
          description
            "Domain adjacency peer is unreachable (not applicable to tunnel-groups or domains)";
        }
      }
      description
        "Indicates the result of the activity election between
             the local and remote multichassis IPsec entity.";
    }

    typedef tunnel-group-protection-status {
      type enumeration {
        enum "nominal" {
          value 1;
          description
            "Forcing a mastership switchover may impact traffic.";
        }
        enum "not-ready" {
          value 2;
          description
            "Forcing a mastership switchover may significantly
            impact traffic.";
        }
      }
      description
        "Indicates the readiness of the tunnel group to perform
             a forced switchover of mastership from the current
             master chassis to the standby chassis.";
    }

    typedef mc-application {
      type enumeration {
        enum "igmp" {
          value 0;
        }
        enum "igmp-snooping" {
          value 1;
        }
        enum "sub-mgmt-ipoe" {
          value 2;
        }
        enum "srrp" {
          value 3;
        }
        enum "mc-ring" {
          value 4;
        }
        enum "mld-snooping" {
          value 5;
        }
        enum "dhcp-server" {
          value 6;
        }
        enum "sub-host-trk" {
          value 7;
        }
        enum "sub-mgmt-pppoe" {
          value 8;
        }
        enum "ipsec" {
          value 9;
        }
        enum "mld" {
          value 10;
        }
        enum "python" {
          value 11;
        }
        enum "l2tp" {
          value 12;
        }
        enum "diam-proxy" {
          value 13;
        }
        enum "pim-snpg-sap" {
          value 14;
        }
        enum "pim-snpg-sdp" {
          value 15;
        }
        enum "diam-node" {
          value 16;
        }
        enum "nat" {
          value 17;
        }
      }
      description
        "application that uses multi-chassis synchronization";
    }

    typedef sync-status {
      type enumeration {
        enum "unknown" {
          value 0;
        }
        enum "fail" {
          value 1;
        }
        enum "in-progress" {
          value 2;
        }
        enum "success" {
          value 3;
        }
      }
      description
        "The results of the synchronization operation.";
    }

    typedef date-and-time-or-never {
      type union {
        type enumeration {
          enum "never" {
            value -1;
          }
        }
        type yang:date-and-time;
      }
      default "never";
      description
        "Specifies date and time with possibility to get as never.";
    }
  }  // module nokia-types-redundancy