submodule etsi-nfv-common {
  belongs-to etsi-nfv {
    prefix nfv;
  }

  description
    "Common types.";

  revision 2017-01-20 {
    description
      "Initial revision

       Common data structures to support VNFD and NSD
       according to:
       ETSI GS NFV-IFA 014 V2.1.1 (2016-10)
       ETSI GS NFV-IFA 011 V2.1.1 (2016-10)";
  }

  /*
   * Identities.
   */
  identity layer-protocol {
  }
  identity Ethernet {
    base layer-protocol;
  }
  identity MPLS {
    base layer-protocol;
  }
  identity ODU2 {
    base layer-protocol;
  }
  identity IPv4 {
    base layer-protocol;
  }
  identity IPv6 {
    base layer-protocol;
  }
  identity Psuedo-Wire {
    base layer-protocol;
  }

  identity address-type {
    description
      "Describes the type of the address to be assigned to the CP 
       instantiated from the parent CPD.
       Value:
       • MAC address.
       • IP address.
       • …
       The content type shall be aligned with the address type 
       supported by the layerProtocol attribute of the parent CPD.";
    reference
      "GS NFV IFA011: Section 7.1.3.3, AddressData information
       element.";
  }
  identity mac-address {
    base address-type;
  }
  identity ip-address {
    base address-type;
  }

  identity supported-operation {
    description
      "Indicates which operations are available for this DF via the
       VNF LCM interface. Instantiate VNF, Query VNF and Terminate
       VNF are supported in all DF and therefore need not be
       included in this list.";
    reference
      "GS NFV IFA011: Section 7.1.8.2 VnfDf information element";
  }
  identity instantiate-vnf {
    base supported-operation;
  }
  identity terminate-vnf {
    base supported-operation;
  }
  identity query-vnf {
    base supported-operation;
  }

  /*
   * Typedefs
   */
      
  typedef flow-pattern {
    type enumeration {
      enum line;
      enum tree;
      enum mesh;
    }
  }

  typedef cp-role {
    type enumeration {
      enum "root";
      enum "leaf";
    }
  }

  typedef affinity-type {
    type enumeration {
      enum "affinity";
      enum "anti-affinity";
    }
  }

  typedef affinity-scope {
    type enumeration {
      enum "nfvi-node";
      enum "zone-group";
      enum "zone";
      enum "nfvi-pop";
    }
  }

  typedef lifecycle-management-script-event {
    type enumeration {
      enum "start-instantiation";
      enum "end-instantiation";
      enum "start-scaling";
      enum "end-scaling";
      enum "start-healing";
      enum "end-healing";
      enum "start-termination";
      enum "end-termination";
      enum "start-vnf-flavor-change";
      enum "end-vnf-flavor-change";
      enum "start-vnf-operation-change";
      enum "end-vnf-operation-change";
      enum "start-vnf-ext-conn-change";
      enum "end-vnf-ext-conn-change";
      enum "start-vnfinfo-modification";
      enum "end-vnfinfo-modification";
    }
  }

  grouping local-affinity-or-anti-affinity-rule {
    list local-affinity-or-anti-affinity-rule {
      key "affinity-type affinity-scope";
      leaf affinity-type {
        type affinity-type;
        description
          "Specifies whether the rule is an affinity rule or an
           anti-affinity rule.";
        reference
          "GS NFV IFA011: Section 7.1.8.11,
           LocalAffinityOrAntiAffinityRule information element.";
      }

      leaf affinity-scope {
        type affinity-scope;
        description
          "Specifies the scope of the rule, possible values are
           'NFVI-PoP', 'Zone', 'ZoneGroup', 'NFVI-node'.";
        reference
          "GS NFV IFA011: Section 7.1.8.11,
           LocalAffinityOrAntiAffinityRule information element.";
      }
    }
  }

  grouping connectivity-type {
    container connectivity-type {
      leaf layer-protocol {
        mandatory true;
        type identityref {
          base layer-protocol;
        }
        description
          "Identifies the protocol this VL gives access to (Ethernet,
           MPLS, ODU2, IPV4, IPV6, Pseudo-Wire).";
        reference
          "GS NFV IFA011: Section 7.1.7.3, ConnectivityType
           information element.";
      }

      leaf flow-pattern {
        type flow-pattern;
        description
          "Identifies the flow pattern of the connectivity (Line,
           Tree, Mesh).";
        reference
          "GS NFV IFA011: Section 7.1.7.3, ConnectivityType
           information element.";
      }
    }
  }

  grouping link-bitrate-requirements {
    leaf root {
      type uint64;
      units "Mbps";
      mandatory true;
      description
        "Specifies the throughput requirement of
         the link (e.g. bitrate of E-Line, root bitrate
         of E-Tree, aggregate capacity of E-LAN).";
      reference
        "GS NFV IFA011: Section 7.1.8.6, LinkBitrateRequirements
         information element.";
    }

    leaf leaf {
      type uint64;
      units "Mbps";
      description
        "Specifies the throughput requirement of
        leaf connections to the link when
        applicable to the connectivity type (e.g. for
        E-Tree and E-LAN branches).";
      reference
        "GS NFV IFA011: Section 7.1.8.6, LinkBitrateRequirements
         information element.";
    }
  }

  grouping monitoring-parameter {
    leaf name {
      type string;
      description
        "Human readable name of the monitoring parameter.";
      reference
        "GS NFV IFA011: Section 7.1.11.3, MonitoringParameter
         information element.";
    }
    leaf performance-metric {
      type string;
      description
        "Defines the virtualised resource performance metric. The
         VNFM collects the performance metrics defined in this
         attribute from the VIM using one or more PM Jobs.";
      reference
        "GS NFV IFA011: Section 7.1.11.3, MonitoringParameter
         information element.";
    }
    leaf collection-period {
      type uint64;
      units "ms";
      description
        "An attribute that describes the recommended periodicity at
         which to collect the performance information. VNFM determines
         if this parameter is considered.

         The vendor may provide this information as a guidance for
         creating PmJobs if needed.";
      reference
        "GS NFV IFA011: Section 7.1.11.3, MonitoringParameter
         information element.";
    }
  }
}