module Cisco-IOS-XR-freqsync-cfg {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-freqsync-cfg";

    prefix freqsync-cfg;

    import ietf-yang-types {
      prefix yang;
    }
    import Cisco-IOS-XR-config-mda-cfg {
      prefix node;
    }
    import cisco-semver {
      prefix semver;
    }
    import Cisco-IOS-XR-freqsync-datatypes {
      prefix dt1;
    }
    import Cisco-IOS-XR-snmp-agent-cfg {
      prefix a1;
    }
    import Cisco-IOS-XR-ifmgr-cfg {
      prefix a2;
    }

    organization "Cisco Systems, Inc.";

    contact
      "Cisco Systems, Inc.
     Customer Service
     
     Postal: 170 West Tasman Drive
     San Jose, CA 95134
     
     Tel: +1 800 553-NETS
     
     E-mail: cs-yang@cisco.com";

    description
      "This module contains a collection of YANG definitions
     for Cisco IOS-XR freqsync package configuration.
     
     This module contains definitions
     for the following management objects:
       frequency-synchronization: Frequency Synchronization global
         configuration
     
     This YANG module augments the
       Cisco-IOS-XR-snmp-agent-cfg,
       Cisco-IOS-XR-ifmgr-cfg
       Cisco-IOS-XR-config-mda-cfg
     modules with configuration data.
     
     Copyright (c) 2013-2020 by Cisco Systems, Inc.
     All rights reserved.";

    revision "2020-04-15" {
      description
        "Fixed must conditions bug.";
    }

    revision "2019-04-05" {
      description
        "Establish semantic version baseline.";
    }

    revision "2017-09-30" {
      description
        "Ensure propagation of MDA mandatory state to YANG model.";
    }

    revision "2017-09-07" {
      description
        "Fixed type translation error.";
    }

    revision "2015-11-09" {
      description "IOS XR 6.0 revision.";
    }

    semver:module-version "2.0.0";
    semver:module-version "1.0.0";

    typedef Fsync-system-timing-mode {
      type enumeration {
        enum "line-only" {
          value 2;
          description "Line-interfaces only";
        }
        enum "clock-only" {
          value 3;
          description
            "Clock-interfaces only";
        }
      }
      description "Fsync system timing mode";
    }

    typedef Fsync-clock-source {
      type enumeration {
        enum "system" {
          value 1;
          description "System";
        }
        enum "independent" {
          value 3;
          description "Independent";
        }
      }
      description "Fsync clock source";
    }

    typedef Fsync-source-selection-logging {
      type enumeration {
        enum "changes" {
          value 1;
          description
            "Log both selection changes and errors";
        }
        enum "errors" {
          value 2;
          description "Log selection errors";
        }
      }
      description
        "Fsync source selection logging";
    }

    typedef Freq-sync-quality-level {
      type enumeration {
        enum "dnu" {
          value 1;
          description "DNU";
        }
        enum "prc" {
          value 2;
          description "PRC";
        }
        enum "sec" {
          value 3;
          description "SEC";
        }
        enum "ssua" {
          value 4;
          description "SSU A";
        }
        enum "ssub" {
          value 5;
          description "SSU B";
        }
      }
      description "Freq sync quality level";
    }

    container frequency-synchronization {
      presence "CLI submode compatibility.";
      description
        "Frequency Synchronization global configuration";
      leaf clock-identity {
        type yang:mac-address;
        description "Local clock ID";
      }

      leaf quality-level-option {
        type dt1:Fsync-ql-option;
        default "option-1";
        description "Quality level option";
      }

      leaf source-selection-logging {
        type Fsync-source-selection-logging;
        description
          "Source selection logging option";
      }

      leaf clock-interface-source-type {
        type Fsync-clock-source;
        description
          "Clock interface source type";
      }

      leaf system-timing-mode {
        type Fsync-system-timing-mode;
        description "System timing mode";
      }
    }  // container frequency-synchronization
  }  // module Cisco-IOS-XR-freqsync-cfg