module Cisco-IOS-XR-ncs4k-freqsync-cfg {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-ncs4k-freqsync-cfg";

    prefix ncs4k-freqsync-cfg;

    import ietf-yang-types {
      prefix yang;
    }
    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 ncs4k-freqsync package configuration.
     
     This module contains definitions
     for the following management objects:
       clock-interface: Configuration for a clock interface
       frequency-synchronization: Frequency Synchronization global
         configuration
     
     This YANG module augments the
       Cisco-IOS-XR-snmp-agent-cfg,
       Cisco-IOS-XR-ifmgr-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 "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 clock-interface {
      description
        "Configuration for a clock interface";
      container clocks {
        description
          "Configuration for a clock interface";
        list clock {
          key "clock-name";
          description
            "Configuration for a clock interface";
          container frequency-synchronization {
            description
              "Frequency Synchronization clock configuraiton";
            container input-quality-level {
              description
                "Set the input quality level";
              leaf quality-level-option {
                type dt1:Fsync-ql-option;
                must
                  "../exact-quality-level-value or ../min-quality-level-value or ../max-quality-level-value or (../min-quality-level-value and ../max-quality-level-value)";
                description
                  "Quality level option";
              }

              leaf exact-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../min-quality-level-value or ../max-quality-level-value)";
                description
                  "Exact quality level value";
              }

              leaf min-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../exact-quality-level-value)";
                description
                  "Minimum quality level value";
              }

              leaf max-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../exact-quality-level-value)";
                description
                  "Maximum quality level value";
              }
            }  // container input-quality-level

            container output-quality-level {
              description
                "Set the output quality level";
              leaf quality-level-option {
                type dt1:Fsync-ql-option;
                must
                  "../exact-quality-level-value or ../min-quality-level-value or ../max-quality-level-value or (../min-quality-level-value and ../max-quality-level-value)";
                description
                  "Quality level option";
              }

              leaf exact-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../min-quality-level-value or ../max-quality-level-value)";
                description
                  "Exact quality level value";
              }

              leaf min-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../exact-quality-level-value)";
                description
                  "Minimum quality level value";
              }

              leaf max-quality-level-value {
                type dt1:Fsync-ql-value;
                must
                  "../quality-level-option and not(../exact-quality-level-value)";
                description
                  "Maximum quality level value";
              }
            }  // container output-quality-level

            leaf ssm-disable {
              type empty;
              description
                "Disable SSM on this source";
            }

            leaf wait-to-restore-time {
              type uint32 {
                range "0..12";
              }
              default "5";
              description
                "Set the wait-to-restore time for this source";
            }

            leaf time-of-day-priority {
              type uint32 {
                range "1..254";
              }
              default "100";
              description
                "Set the time-of-day priority of this source";
            }

            leaf priority {
              type uint32 {
                range "1..254";
              }
              default "100";
              description
                "Set the priority of this source";
            }

            leaf selection-input {
              type empty;
              description
                "Assign this source as a selection input";
            }
          }  // container frequency-synchronization

          leaf clock-name {
            type string;
            description "Clock Name";
          }
        }  // list clock
      }  // container clocks
    }  // container clock-interface

    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-ncs4k-freqsync-cfg