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        leaf image {
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          default ".";
          type inet:uri;
          description
            "This is a reference to the actual software image.
             The reference can be relative to the root of the VNF
             Package or can be a URL";
          reference
            "GS NFV IFA011: Section 7.1.6.5, SwImageDesc
             information element.";
        }
        leaf operating-system {
          type string;
          description
            "Identifies the operating system used in the software
             image. This attribute may also identify if a 32 bit
             or 64 bit software image is used.";
          reference
            "GS NFV IFA011: Section 7.1.6.5, SwImageDesc
             information element.";
        }
        leaf-list supported-virtualization-environment {
          type string;
          description
            "Identifies the virtualisation environments
             (e.g. hypervisor) compatible with this software
             image.";
          reference
            "GS NFV IFA011: Section 7.1.6.5, SwImageDesc
             information element.";
        }
      }

      list int-virtual-link-desc {
        key "id";
        description
          "Represents the type of network connectivity mandated by the
           VNF provider between two or more CPs which includes at
           least one internal CP.";
        reference
          "GS NFV IFA011: Section 7.1.2, Vnfd information element.";
        leaf id {
          type string;
          description
            "Unique identifier of this internal VLD in VNFD.";
          reference
            "GS NFV IFA011: Section 7.1.7.2, VnfVirtualLinkDesc
             Information elements.";
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        list flavour {
          key "id";
          description
            "Describes a specific flavour of the VL with specific
             bitrate requirements.";
          reference
            "GS NFV IFA011: Section 7.1.7.2, VnfVirtualLinkDesc
             Information elements.";

          leaf id {
            type string;
            description
              "Identifies a flavour within a VnfVirtualLinkDesc.";
            reference
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              "GS NFV IFA011: Section 7.1.8.5, VirtualLinkDescFlavour
               information element.";
          }
          container qos {
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	    presence "VL QoS parameters";
            description
              "QoS of the VL.";
            reference
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              "GS NFV IFA011: Section 7.1.8.5, VirtualLinkDescFlavour
               information element.";

            leaf latency {
              type uint32;
              units "ms";
              mandatory true;
              description
                "Specifies the maximum latency in ms.";
              reference
                "GS NFV IFA011: Section 7.1.8.10, QoS information
                 element.";
            }

            leaf packet-delay-variation {
              type uint32;
              units "ms";
              mandatory true;
              description
                "Specifies the maximum jitter in ms.";
              reference
                "GS NFV IFA011: Section 7.1.8.10, QoS information
                 element.";
            }

            leaf packet-loss-ratio {
              type decimal64 {
                fraction-digits "2";
                range "0..1.00";
              }
              description
                "Specifies the maximum packet loss ratio.";
              reference
                "GS NFV IFA011: Section 7.1.8.10, QoS information
                 element.";
            }
          }
        }
        uses connectivity-type;
        leaf-list test-access {
          type string;
          description
            "Specifies test access facilities expected on the VL
             (e.g. none, passive monitoring, or active (intrusive)
             loopbacks at endpoints.";
          reference
            "GS NFV IFA011: Section 7.1.7.2, VnfVirtualLinkDesc
             information element.";
        }
        leaf description {
          type string;
          description
            "Provides human-readable information on the purpose of
             the VL (e.g. control plane traffic).";
          reference
            "GS NFV IFA011: Section 7.1.7.2, VnfVirtualLinkDesc
             information element.";
        }
        list monitoring-parameters {
          key "id";
          leaf id {
            type string;
            description
              "Unique identifier of the monitoring parameter.";
          reference
            "GS NFV IFA011: Section 7.1.11.3, MonitoringParameter
             information element.";
          }
          uses monitoring-parameter;
      uses security-group-rule;
      list ext-cpd {
        key "id";
        min-elements 1;

        description
          "Describes an external interface exposed by this VNF enabling
           connection with a Virual Link";
        reference
          "GS NFV IFA011: Section 7.1.2, VNFD information element.";
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	choice cp-connection {
          leaf int-virtual-link-desc {
            description
              "Reference to the internal Virtual Link Descriptor (VLD)
               to which CPs instantiated from this external CP
               Descriptor (CPD) connect. Either intVirtualLinkDesc or
               intCpd shall be present.";
            type leafref {
              path "../../nfv:int-virtual-link-desc/nfv:id";
            }
          }
          container int-cpd {
            leaf vdu-id {
              type leafref {
                path "../../../vdu/id";
              }
            }
            leaf cpd {
	      type leafref {
		path "deref(../vdu-id)/../int-cpd/id";
	      }
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            }
          }
        }
        uses virtual-network-interface-requirements;
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        uses cpd;
        must "nfv:default-instantiation-level or " +
             "count(nfv:instantiation-level) = 1";
        key "id";
        min-elements 1;
        description
          "Describes a specific Deployment Flavour (DF) of a VNF with
           specific requirements for capacity and performance.";
        reference
          "GS NFV IFA011: Section 7.1.2, VNFD information element.";
        leaf id {
          type string;
          description
            "Identifier of this DF within the VNFD.";
          reference
            "GS NFV IFA011: Section 7.1.8, Information elements
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             to the DeploymentFlavour.";
        }
        leaf description {
          type string;
          description
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            "Human readable description of the deployment flavour";
          reference
            "GS NFV IFA011: Section 7.1.8, Information elements
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             to the DeploymentFlavour.";
        }
        list vdu-profile {
          key "id";
          min-elements 1;
          description
            "The Vduprofile describes additional instantiation data for
             a given VDU used in a deployment flavour.";
          reference
            "GS NFV IFA011: Section 7.1.8, Information elements
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             to the DeploymentFlavour.";
          leaf id {
            type leafref {
              path "../../../nfv:vdu/nfv:id";
            }
            reference
              "GS NFV IFA011: Section 7.1.8.3, VduProfile information
               element.";
          }
          leaf min-number-of-instances {
            type uint16;
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            default 1;
            description
              "Minimum number of instances of the VNFC based on this
               VDU that is permitted to exist for this flavour.";
            reference
              "GS NFV IFA011: Section 7.1.8.3, VduProfile information
               element.";
          }
          leaf max-number-of-instances {
            type uint16;
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            default 1;
            must ". >= ../nfv:min-number-of-instances";
            reference
              "GS NFV IFA011: Section 7.1.8.3, VduProfile information
               element.";
          }
          uses local-affinity-or-anti-affinity-rule;
          list affinity-or-anti-affinity-group {
            key "id";
            description
              "Identifier(s) of the affinity or anti-affinity
               group(s) the VDU belongs to.";
            reference
              "GS NFV IFA011: Section 7.1.8.3, VduProfile information
               element.";
            leaf id {
              type leafref {
                path "../../../" +
                     "nfv:affinity-or-anti-affinity-group/" +
                     "nfv:id";
              }
              description
                "Identifies an affinity or anti-affinity group to
                  which the affinity or anti-affinity rule applies.";
              reference
                "GS NFV IFA011: Section 7.1.8.12, AffinityOrAntiAffinity
                 information element.";
            }
          }
        }
        list virtual-link-profile {
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          key "id flavour";
          description
            "Defines the internal VLD along with additional data which
             is used in this DF.";
          reference
            "GS NFV IFA011: Section 7.1.8.2, VnfDf information
             element.";

          leaf id {
            type leafref {
              path "../../../nfv:int-virtual-link-desc/nfv:id";
            }
            description
              "Uniquely identifies a Vnf VLD.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }
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          leaf flavour {
            type leafref {
              path "deref(../../../ext-cpd/int-virtual-link-desc)" +
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                   "/../flavour/id";
            }
            description
              "Identifies a flavour within the VnfVirtualLinkDesc.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }
          uses local-affinity-or-anti-affinity-rule;
          list affinity-or-anti-affinity-group {
            key "id";
            leaf id {
              type leafref {
                path "../../../" +
                     "nfv:affinity-or-anti-affinity-group/" +
                     "nfv:id";
              }
            }
            description
              "Identifier(s) of the affinity or anti-affinity
               group(s) the VnfVirtualLinkDesc belongs to.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }
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          container max-bit-rate-requirements {
            leaf root {
              mandatory "true";
              type uint32;
              description
                "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 uint32;
              description
                "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.";
            }
            description
              "Specifies the maximum bitrate requirements for a VL
               instantiated according to this profile.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }

          container min-bit-rate-requirements {
            leaf root {
              mandatory "true";
              type uint32;
              description
                "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 uint32;
              description
                "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.";
            }
            description
              "Specifies the minimum bitrate requirements for a VL
               instantiated according to this profile.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }

          container virtual-link-protocol-data {
            leaf associated-layer-protocol {
              type identityref {
                base layer-protocol;
              }
              description
                "One of the values of the attribute layerProtocol of
                 the ConnectivityType IE.";
              reference
                "GS NFV IFA011: Section 7.1.8.13,
                 VirtualLinkProtocolData information element.";
            }

            container l2-protocol-data {
              when "(../associated-layer-protocol = 'Ethernet') or " +
                "(../associated-layer-protocol = 'MPLS') or " +
                "(../associated-layer-protocol = 'ODU2') or " +
                "(../associated-layer-protocol = 'Pseudo-Wire')";
              leaf name {
                type string;
                description
                  "Network name associated with this L2 protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.14,
                   L2ProtocolData information element.";
              }

              leaf network-type {
                type enumeration {
                  enum flat;
                  enum vlan;
                  enum vxlan;
                  enum gre;
                }
                description
                  "Specifies the network type for this L2 protocol.
                   Possible values: FLAT, VLAN, VXLAN, GRE.";
                reference
                  "GS NFV IFA011: Section 7.1.8.14,
                   L2ProtocolData information element.";
              }

              leaf vlan-transparent {
                type boolean;
                description
                  "Specifies whether to support VLAN transparency for
                   this L2 protocol or not.";
                reference
                  "GS NFV IFA011: Section 7.1.8.14,
                   L2ProtocolData information element.";
              }

              leaf mtu {
                type uint16;
                description
                  "Specifies the maximum transmission unit (MTU) value
                   for this L2 protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.14,
                   L2ProtocolData information element.";
              }
              description
                "Specifies the L2 protocol data for this virtual link.
                 Shall be present when the associatedLayerProtocol
                 attribute indicates a L2 protocol and shall be absent
                 otherwise.";
              reference
                "GS NFV IFA011: Section 7.1.8.13,
                 VirtualLinkProtocolData information element.";
            }

            container l3-protocol-data {
              when "(../associated-layer-protocol = 'IPv4') or " +
                "(../associated-layer-protocol = 'IPv6')";

              leaf name {
                type string;
                description
                  "Network name associated with this L3 protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf ip-version {
                type enumeration {
                  enum ipv4;
                  enum ipv6;
                }
                default "ipv4";
                description
                  "Specifies IP version of this L3 protocol.
                   Value:
                   • IPV4.
                   • IPV6.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf cidr {
                type string;
                description
                  "Specifies the CIDR (Classless InterDomain Routing)
                   of this L3 protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf-list ip-allocation-pools {
                type string;
                description
                  "Specifies the allocation pools with start and end
                   IP addresses for this L3 protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf gateway-ip {
                type inet:ip-address;
                description
                  "Specifies the gateway IP address for this L3
                   protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf dhcp-enabled {
                type boolean;
                default "true";
                description
                  "Indicates whether DHCP (Dynamic Host Configuration
                   Protocol) is enabled or disabled for this L3
                   protocol.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }

              leaf ipv6-address-mode {
                when "../ip-version = 'ipv6'";
                type enumeration {
                  enum slaac;
                  enum dhcpv6-stateful;
                  enum dhcpv6-stateless;
                }
                description
                  "Specifies IPv6 address mode. Possible values:
                   • SLAAC.
                   • DHCPV6-STATEFUL.
                   • DHCPV6-STATELESS.
                  May be present when the value of the ipVersion
                  attribute is 'IPV6' and shall be absent otherwise.";
                reference
                  "GS NFV IFA011: Section 7.1.8.15,
                   L3ProtocolData information element.";
              }
              description
                "Specifies the L3 protocol data for this virtual link.
                 Shall be present when the associatedLayerProtocol
                 attribute indicates a L3 protocol and shall be absent
                 otherwise.";
              reference
                "GS NFV IFA011: Section 7.1.8.13,
                 VirtualLinkProtocolData information element.";
            }
            description
              "Specifies the protocol data for a VL instantiated
               according to this profile. Cardinality 0 is used when
               no protocol data needs to be specified.";
            reference
              "GS NFV IFA011: Section 7.1.8.4, VirtualLinkProfile
               information element.";
          }
        list instantiation-level {
          key "id";
          min-elements 1;
          description
            "Describes the various levels of resources that can be
             used to instantiate the VNF using this flavour.
             Examples: Small, Medium, Large. If there is only one
             'instantiationLevel' entry, it shall be treated as the
             default instantiation level for this DF.

             The InstantiationLevel information element describes a
             given level of resources to be instantiated within a
             deployment flavour in term of the number of VNFC instances
             to be created from each VDU.
             All the VDUs referenced in the level shall be part of the
             corresponding deployment flavour and their number shall
             be within the range (min/max) for this deployment flavour.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information element";
          leaf id {
            type string;
            description
              "Uniquely identifies a level with the DF.";
            reference
              "GS NFV IFA011: Section 7.1.8.7 InstantiationLevel
               information element";
          }
          leaf description {
            type string;
            description
              "Human readable description of the instantiation level";
            reference
              "GS NFV IFA011: Section 7.1.8.7 InstantiationLevel
               information element";
          }
          list vdu-level {
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            key "vdu-id";
            min-elements 1;
            description
              "Sets the number of instances for the VDU in this
               instantiation level.";
            reference
              "GS NFV IFA011: Section 7.1.8.7 InstantiationLevel
               information element";
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            leaf vdu-id {
              type leafref {
                path "../../../../nfv:vdu/nfv:id";
              }
              description
                "Uniquely identifies a VDU.";
              reference
                "GS NFV IFA011: Section 7.1.8.9 VduLevel information
                 element";
            }
            leaf number-of-instances {
              type uint16;
              must ". <= ../../../../nfv:df/" +
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                   "nfv:vdu-profile[id=current()/../nfv:vdu-id]/" +
                   "nfv:max-number-of-instances";
              must ". >= ../../../../nfv:df/" +
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                   "nfv:vdu-profile[id=current()/../nfv:vdu-id]/" +
                   "nfv:min-number-of-instances";
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              default 1;
              description
                "Number of instances of VNFC based on this VDU to
                 deploy for this level.";
              reference
                "GS NFV IFA011: Section 7.1.8.9 VduLevel information
                 element";
            }
          }
          list scaling-info {
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            key "scaling-aspect-id";
            description
              "The InstantiationLevel information element describes a
               given level of resources to be instantiated within a
               DF in term of the number of VNFC instances to be
               created from each VDU.";
            reference
              "GS NFV IFA011: Section 7.1.8.7 InstantiationLevel
               information element";
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            leaf scaling-aspect-id {
              type leafref {
                path "../../../nfv:scaling-aspect/nfv:id";
              }
              description
                "Identifier of the scaling aspect.";
              reference
                "GS NFV IFA011: Section 7.1.8.8 ScaleInfo information
                 element";
            }
            leaf scale-level {
              type uint32;
              description
                "The scale level, greater than or equal to 0.";
              reference
                "GS NFV IFA011: Section 7.1.8.8 ScaleInfo information
                 element";
            }
          }
        }
        leaf default-instantiation-level {
          type leafref {
            path "../nfv:instantiation-level/nfv:id";
          }
          description
            "This attribute references the 'instantiationLevel'
             entry which defines the default instantiation level for
             this DF. It shall be present if there are multiple
             'instantiationLevel' entries.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
                 element";
        }
        leaf-list supported-operation {
          type identityref {
            base 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";
        }
        container lcm-operations-configuration {
          description
            "This information element is a container for all
             attributes that affect the invocation of the VNF
             Lifecycle Management operations, structured by
             operation.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";
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          container instantiate-vnf-op-config {
            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the InstantiateVnf
                 operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.3
                 InstantiateVnfOpConfig information element";
            }
            description
              "Configuration parameters for the InstantiateVnf
               operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";
          }
          container scale-vnf-op-config {
            description
              "Configuration parameters for the ScaleVnf operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";

            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
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                "Array of KVP requirements for VNFspecific parameters
                 to be passed when invoking the ScaleVnf operation.";
               reference
                "GS NFV IFA011: Section 7.1.5.4 ScaleVnfOpConfig
                 information element";
            }
            leaf scaling-by-more-than-one-step-supported {
              type boolean;
              default false;
              description
                "Signals whether passing a value larger than one in
                 the numScalingSteps parameter of the ScaleVnf
                 operation is supported by this VNF.
                 Default is FALSE, i.e. 'not supported'.";
              reference
                "GS NFV IFA011: Section 7.1.5.4
                 ScaleVnfOpConfig information element";
            }
          }
          container scale-vnf-to-level-op-config {
            description
              "This information element defines attributes that
               affect the invocation of the ScaleVnfToLevel
               operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";

            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
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                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the ScaleVnfToLevel
                 operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.5
                 ScaleVnfToLevelOpConfig information element";
            }
            leaf arbitrary-target-levels-supported {
              type boolean;
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              default "false";
              description
                "Signals whether scaling according to the parameter
                 'scaleInfo' is supported by this VNF.";
              reference
                "GS NFV IFA011: Section 7.1.5.5
                 ScaleVnfToLevelOpConfig information element";
            }
          }
          container heal-vnf-op-config {
            description
              "This information element defines attributes that
               affect the invocation of the HealVnf operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";

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            list parameter {
              key "key";
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              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
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                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the HealVnf operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.6 HealVnfOpConfig
                 information element";
            }
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            leaf-list cause {
              type string;
              description
                "Supported 'cause' parameter values.";
              reference
                "GS NFV IFA011: Section 7.1.5.6 HealVnfOpConfig
                 information element";
            }
          }
          container terminate-vnf-op-config {
            description
              "This information element defines attributes that
               affect the invocation of the TerminateVnf operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";
            leaf min-graceful-termination {
              type yang:timeticks;
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              default "1";
              description
                "Minimum timeout value for graceful termination of
                 a VNF instance.";
              reference
                "GS NFV IFA011: Section 7.1.5.7
                 TerminateVnfOpConfig information element";
            }
            leaf max-recommended-graceful-termination {
              type yang:timeticks;
              description
                "Maximum recommended timeout value that can be needed
                 to gracefully terminate a VNF instance of a
                 particular type under certain conditions, such as
                 maximum load condition. This is provided by VNF
                 provider as information for the operator
                 facilitating the selection of optimal timeout value.
                 This value is not used as constraint.";
              reference
                "GS NFV IFA011: Section 7.1.5.7
                 TerminateVnfOpConfig information element";
            }
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            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the TerminateVnf
                 operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.7
                 TerminateVnfOpConfig information element";
            }
          container operate-vnf-op-config {
            description
              "This information element defines attributes that
               affect the invocation of the OperateVnf operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";

            leaf min-graceful-stop-timeout {
              type yang:timeticks;
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              default "1";
              description
                "Minimum timeout value for graceful stop of a VNF
                 instance.";
              reference
                "GS NFV IFA011: Section 7.1.5.8
                 OperateVnfOpConfig information element";
            }
            leaf max-recommended-graceful-stop-timeout {
              type yang:timeticks;
              description
                "Maximum recommended timeout value that can be
                 needed to gracefully stop a VNF instance of a
                 particular type under certain conditions, such as
                 maximum load condition. This is provided by VNF
                 provider as information for the operator facilitating
                 the selection of optimal timeout value. This value
                 is not used as constraint.";
              reference
                "GS NFV IFA011: Section 7.1.5.8
                 OperateVnfOpConfig information element";
            }
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            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the OperateVnf
                 operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.8
                 OperateVnfOpConfig information element";
            }
          }

          container change-vnf-flavour-op-config {
            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the OperateVnf
                 operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.9
                 ChangeVnfFlavour information element";
            }
            description
              "Configuration parameters for the ChangeVnfFlavour
               operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";
          }

          container change-ext-vnf-connectivity-op-config {
            list parameter {
              key "key";
              leaf key {
                type string;
              }
              leaf value {
                type string;
              }
              description
                "Array of KVP requirements for VNF-specific parameters
                 to be passed when invoking the
                 ChangeExtVnfConnectivity operation.";
              reference
                "GS NFV IFA011: Section 7.1.5.10
                 ChangeExtVnfConnectivityOpConfig information
                 element";
            }
            description
              "Configuration parameters for the
               ChangeExtVnfConnectivity operation.";
            reference
              "GS NFV IFA011: Section 7.1.5.2
               VnfLcmOperationsConfiguration information element";
        list affinity-or-anti-affinity-group {