submodule etsi-nfv-vnf { yang-version 1.1; belongs-to etsi-nfv { prefix nfv; } include etsi-nfv-common; import ietf-inet-types { prefix inet; } import ietf-yang-types { prefix yang; } description "Models for VNFD according to GS NFV-IFA 011."; revision 2018-06-19 { description "Initial revision. Common data structure to support VNFD according to: VNFD according to ETSI GS NFV-IFA 011 Ed251v243"; reference "ETSI GS NFV-IFA 011 Ed251v243"; } grouping virtual-network-interface-requirements { list virtual-network-interface-requirement { key "name"; description "Specifies requirements on a virtual network interface realising the CPs instantiated from this CPD."; reference "GS NFV-IFA011: Section 7.1.6.4, VduCpd information element"; leaf name { type string; description "Provides a human readable name for the requirement."; reference "GS NFV-IFA011: Section 7.1.6.6, VirtualNetworkInterfaceRequirements information element"; } leaf description { type string; description "Provides a human readable description of the requirement."; reference "GS NFV-IFA011: Section 7.1.6.6, VirtualNetworkInterfaceRequirements information element"; } leaf support-mandatory { default "false"; type boolean; description "Indicates whether fulfilling the constraint is mandatory (true) for successful operation or desirable (false)."; reference "GS NFV-IFA011: Section 7.1.6.6, VirtualNetworkInterfaceRequirements information element"; } list network-interface-requirements { key "key"; leaf key { type string; } leaf value { type string; } description "The network interface requirements. An element from an array of key-value pairs that articulate the network interface deployment requirements."; reference "GS NFV-IFA011: Section 7.1.6.6, VirtualNetworkInterfaceRequirements information element"; } leaf niclo-requirements { type leafref { path "/nfv/vnfd/virtual-compute-descriptor/id"; } description "This references (couples) the CPD with any logical node I/O requirements (for network devices) that may have been created. Linking these attributes is necessary so that so that I/O requirements that need to be articulated at the logical node level can be associated with the network interface requirements associated with the CPD."; reference "GS NFV-IFA011: Section 7.1.6.6, VirtualNetworkInterfaceRequirements information element"; } } } // This grouping definition is for use within Vnfd as defined in // IFA011. A similar definition of Cpd exists in IFA014, but // that is for use with Sapd and Pnfd. Do not use this grouping // for that. grouping vnf-cpd { description "A Cpd information element describes network connectivity to a compute resource or a VL."; reference "GS NFC IFA011: Section 7.1.6.3 Cpd Information Element"; leaf id { type string; description "Identifier of this Cpd information element."; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; } leaf layer-protocol { default Ethernet; type identityref { base layer-protocol; } description "Identifies which protocol the CP uses for connectivity purposes (Ethernet, MPLS, ODU2, IPV4, IPV6, Pseudo-Wire, etc.)."; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; } leaf role { type identityref { base cp-role; } description "Identifies the role of the port in the context of the traffic flow patterns in the VNF or parent NS. For example a VNF with a tree flow pattern within the VNF will have legal cpRoles of ROOT and LEAF."; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; } leaf description { type string; description "Human readable description of the connection point"; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; } container protocol { description "Identifies the protocol layering information the CP uses for connectivity purposes and associated information. There shall be one cpProtocol for each layer protocol as indicated by the attribute layerProtocol."; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; leaf associated-layer-protocol { type identityref { base layer-protocol; } description "One of the values of the attribute layerProtocol of the Cpd IE."; reference "GS NFV IFA011: Section 7.1.6.8, CpProtocolData information element."; } list address-data { key "address-type"; leaf address-type { type identityref { base 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."; } container l2-address-data { when "../address-type='mac-address'"; } container l3-address-data { when "../address-type='ip-address'"; leaf ip-address-assignment { type boolean; description "Specify if the address assignment is the responsibility of management and orchestration function or not. If it is set to True, it is the management and orchestration function responsibility. "; reference "GS NFV IFA011: Section 7.1.3.4, L3AddressData information element."; } leaf floating-ip-activated { type boolean; description "Specify if the floating IP scheme is activated on the CP or not."; reference "GS NFV IFA011: Section 7.1.3.4, L3AddressData information element."; } leaf ip-address-type { type enumeration { enum "ipv4"; enum "ipv6"; } description "Define address type. The address type should be aligned with the address type supported by the layerProtocol attribute of the parent VnfExtCpd."; reference "GS NFV IFA011: Section 7.1.3.4, L3AddressData information element."; } leaf number-of-ip-addresses { type uint32; description "Minimum number of IP addresses to be assigned based on this L3AddressData information element."; reference "GS NFV IFA011: Section 7.1.3.4, L3AddressData information element."; } } description "The AddressData information element supports providing information about the addressing scheme and parameters applicable to a CP."; reference "GS NFV IFA011: Section 7.1.3.3, AddressData information element."; } } leaf trunk-mode { type boolean; description "Information about whether the CP instantiated from this CPD is in Trunk mode (802.1Q or other)."; reference "GS NFV IFA011: Section 7.1.6.3, Cpd information element."; } } grouping vnfd { list vnfd { key "id"; description "A VNF Descriptor (VNFD) is a deployment template which describes a VNF in terms of deployment and operational behaviour requirements. It also contains connectivity, interface and virtualised resource requirements"; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; leaf id { type string; description "Identifier of this VNFD information element. This attribute shall be globally unique. The format will be defined in the data model specification phase."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf provider { type string; mandatory true; description "Provider of the VNF and of the VNFD"; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf product-name { type string; mandatory true; description "Name to identify the VNF Product. Invariant for the VNF Product lifetime."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf software-version { type string; mandatory true; description "Software version of the VNF. This is changed when there is any change to the software that is included in the VNF Package"; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf version { type string; mandatory true; description "Identifies the version of the VNFD"; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf product-info-name { type string; description "Human readable name of the VNFD. Can change during the VNF Product lifetime."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf product-info-description { type string; description "Human readable description of the VNFD. Can change during the VNF Product lifetime."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf-list vnfm-info { type string; min-elements 1; description "Identifies VNFM(s) compatible with the VNF described in this version of the VNFD."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf localization-language { type string; description "Information about the language of the VNF."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } leaf default-localization-language { when "../localization-language"; type string; description "Default localization language that is instantiated if no information about selected localization language is available. Shall be present if 'localization-language' is present and shall be absent otherwise."; reference "GS NFV-IFA011: Section 7.1.2, VNFD information element"; } list vdu { key "id"; min-elements 1; description "The Virtualisation Deployment Unit (VDU) is a construct supporting the description of the deployment and operational behaviour of a VNF component, or the entire VNF if it was not componentized in components."; reference "GS NFV IFA011: Section 7.1.2, VNFD information element"; leaf id { type string; description "Unique identifier of this VDU in VNFD."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element"; } leaf name { type string; mandatory true; description "Human readable name of the VDU."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element"; } leaf description { type string; description "Human readable description of the VDU."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element"; } list int-cpd { key "id"; min-elements 1; description "A internal-connection-point element is a type of connection point and describes network connectivity between a VDU instance and an internal Virtual Link or an external connection point."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element"; leaf int-virtual-link-desc { type leafref { path "../../../nfv:int-virtual-link-desc/nfv:id"; } description "Reference of the internal VLD which this internal CPD connects to."; reference "GS NFV IFA011: Section 7.1.6.4, VduCpd information element"; } leaf bitrate-requirement { type uint64; units "Mbps"; description "Bitrate requirement on this CP."; reference "GS NFV IFA011: Section 7.1.6.4, VduCpd information element."; } uses virtual-network-interface-requirements; leaf-list order { type uint32; description "The order of the NIC to be assigned on the compute instance (e.g. 2 for eth2). Note: when binding more than one port to a single compute (aka multi vNICs) and ordering is desired, it is mandatory that all ports will be set with an order value. The order values shall represent a positive, arithmetic progression that starts with 0 (i.e. 0, 1, 2,..., n). If the property is not present, it shall be left to the VIM to assign a value when creating the instance."; reference "GS NFV IFA011: Section 7.1.6.4, VduCpd information element."; } uses vnf-cpd; } leaf virtual-compute-desc { type leafref { path "../../nfv:virtual-compute-descriptor/" + "nfv:id"; } must "../../nfv:virtual-compute-descriptor[id=current()]/" + "nfv:virtual-memory/size >=" + "../../nfv:sw-image-desc[id=current()/" + "../sw-image-desc]/min-ram" { } description "Describes CPU, Memory and acceleration requirements of the Virtualisation Container realizing this VDU."; reference "GS NFV IFA011: Section 7.1.6.2, VDU information element, and Section 7.1.9.2.2, VirtualComputeDesc information element."; } leaf-list virtual-storage-desc { type leafref { path "../../nfv:virtual-storage-descriptor/" + "nfv:id"; } description "Describes storage requirements for a VirtualStorage instance attached to the virtualisation container created from virtualComputeDesc defined for this VDU."; reference "GS NFV IFA011: Section 7.1.6.2, VDU information element, and Section 7.1.9.4, Information elements related to Virtual Storage."; } list boot-order { ordered-by user; key "key"; leaf key { type uint32; } leaf value { type leafref { path "../../nfv:virtual-storage-desc"; } } description "The key indicates the boot index (lowest index defines highest boot priority). The Value references a descriptor from which a valid boot device is created e.g. VirtualStorageDesc from which a VirtualStorage instance is created. Editor's note: The boot-order node requires further study."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element."; } leaf sw-image-desc { type leafref { path "../../sw-image-desc/id"; } description "Describes the software image which is directly loaded on the virtualisation container realising this Vdu."; reference "GS NFV IFA011: Section 7.1.6.2, Vdu information element."; } leaf-list nfvi-constraint { type string; description "Describes constraints on the NFVI for the VNFC instance(s) created from this Vdu. For example, aspects of a secure hosting environment for the VNFC instance that involve additional entities or processes."; reference "GS NFV IFA011: Section 7.1.6.2, VDU Information element."; } list monitoring-parameter { 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; } list configurable-properties { key "key"; leaf key { type string; } leaf value { type string; } description "It provides VNFC configurable properties that can be modified using the ModifyVnfInfo operation."; reference "GS NFV IFA011: Section 7.1.6.7, VnfcConfigurableProperties Information element."; } list boot-data { key "key"; leaf key { type string; } leaf value { type string; } description "Contains a string or a URL to a file contained in the VNF package used to customize a virtualised compute resource at boot time. The bootData may contain variable parts that are replaced by deployment specific values before being sent to the VIM."; reference "GS NFV IFA011: Section 7.1.6.7, VnfcConfigurableProperties Information element."; } } list virtual-compute-descriptor { key "id"; description "Defines descriptors of virtual compute resources to be used by the VNF."; leaf id { type string; description "Unique identifier of this VirtualComputeDesc in the VNFD."; reference "GS NFV IFA011: Section 7.1.9.2, Information elements related to Virtual CPU."; } list logical-node { key "id"; leaf id { type string; description "Identifies this set of logical node requirements."; reference "GS NFV IFA011: Section 7.1.9.6, LogicalNodeRequirements Information elements."; } list requirement-detail { key "key"; leaf key { type string; } leaf value { type string; } description "The logical node-level compute, memory and I/O requirements. An array of key-value pairs that articulate the deployment requirements. This could include the number of CPU cores on this logical node, a memory configuration specific to a logical node (e.g. such as available in the Linux kernel via the libnuma library) or a requirement related to the association of an I/O device with the logical node."; reference "GS NFV IFA011: Section 7.1.9.6, LogicalNodeRequirements information element."; } description "The logical node requirements."; reference "GS NFV IFA011: Section 7.1.9.2, VirtualComputeDesc information element."; } list request-additional-capability { key "name"; leaf name { type string; description "Identifies a requested additional capability for the VDU. ETSI GS NFV-IFA 002 [i.1] describes acceleration capabilities."; reference "GS NFV IFA011: Section 7.1.9.5, RequestedAdditionalCapabilityData Information element."; } leaf support-mandatory { type boolean; description "Indicates whether the requested additional capability is mandatory for successful operation."; reference "GS NFV IFA011: Section 7.1.9.5, RequestedAdditionalCapabilityData Information element."; } leaf min-version { type string; description "Identifies the minimum version of the requested additional capability."; reference "GS NFV IFA011: Section 7.1.9.5, RequestedAdditionalCapabilityData Information element."; } leaf preferred-version { type string; description "Identifies the preferred version of the requested additional capability."; reference "GS NFV IFA011: Section 7.1.9.5, RequestedAdditionalCapabilityData Information element."; } list target-performance-parameters { key "key"; leaf key { type string; } leaf value { type string; } description "Identifies specific attributes, dependent on the requested additional capability type."; reference "GS NFV IFA011: Section 7.1.9.5, RequestedAdditionalCapabilityData Information element."; } } leaf compute-requirements { type string; description "Specifies compute requirements."; reference "GS NFV IFA011: Section 7.1.9.2.2, VirtualComputeDesc Information element."; } container virtual-memory { leaf size { type decimal64 { fraction-digits 1; range "0..max"; } units "MBytes"; default 1; description "Amount of virtual memory in MB."; reference "GS NFV IFA011: Section 7.1.9.3, Information elements related to Virtual Memory."; } leaf over-subscription-policy { type string; description "The memory core oversubscription policy in terms of virtual memory to physical memory on the platform. The cardinality can be 0 during the allocation request, if no particular value is requested."; reference "GS NFV IFA011: Section 7.1.9.3, Information elements related to Virtual Memory."; } list vdu-mem-requirements { key "key"; leaf key { type string; } leaf value { type string; } description "Array of key-value pair requirements on the memory for the VDU."; reference "GS NFV IFA011: Section 7.1.9.3.2, VirtualMemoryData information element."; } leaf numa-enabled { type boolean; description "It specifies the memory allocation to be cognisant of the relevant process/core allocation. The cardinality can be 0 during the allocation request, if no particular value is requested."; reference "GS NFV IFA011: Section 7.1.9.3, Information elements related to Virtual Memory."; } description "The virtual memory of the virtualised compute."; reference "GS NFV IFA011: Section 7.1.9.2.2, VirtualComputeDesc Information element."; } container virtual-cpu { description "The virtual CPU(s)of the virtualised compute."; reference "GS NFV IFA011: Section 7.1.9.2.2, VirtualComputeDesc Information element."; leaf cpu-architecture { type string; description "CPU architecture type. Examples are x86, ARM. The cardinality can be 0 during the allocation request, if no particular CPU architecture type is requested."; reference "GS NFV IFA011: Section 7.1.9.2.3, VirtualCpuData information elements."; } leaf num-virtual-cpu { type uint16 { range "1..max"; } default 1; description "Number of virtual CPUs."; reference "GS NFV IFA011: Section 7.1.9.2.3, VirtualCpuData information elements."; } leaf clock { type uint32; units "MHz"; description "Minimum virtual CPU clock rate (e.g. in MHz). The cardinality can be 0 during the allocation request, if no particular value is requested."; reference "GS NFV IFA011: Section 7.1.9.2.3, VirtualCpuData information elements."; } leaf oversubscription-policy { type string; description "The CPU core oversubscription policy e.g. the relation of virtual CPU cores to physical CPU cores/threads. The cardinality can be 0 during the allocation request, if no particular value is requested."; reference "GS NFV IFA011: Section 7.1.9.2.3, VirtualCpuData information elements."; } list vdu-cpu-requirements { key "key"; leaf key { type string; } leaf value { type string; } description "Array of key-value pair requirements on the compute (CPU) for the VDU."; reference "GS NFV IFA011: Section 7.1.9.3.2, VirtualCpuData information element."; } container virtual-cpu-pinning { presence "Set to specify CPU pinning."; leaf cpu-pinning-policy { default "dynamic"; type enumeration { enum "static"; enum "dynamic"; } description "Indicates the policy for CPU pinning. The policy can take values of 'static' or 'dynamic'. The cardinality can be 0 during the allocation request, if no particular value is requested."; } container cpu-pinning-map { when "../nfv:cpu-pinning-policy = 'static'"; } description "If cpuPinningPolicy is defined as 'static', the cpuPinningMap provides the map of pinning virtual CPU cores to physical CPU cores/threads. Cardinality is 0 if cpuPinningPolicy has a different value than 'static'."; } } } list virtual-storage-descriptor { key "id"; description "Storage requirements for a Virtual Storage instance attached to the VNFC created from this VDU"; leaf id { type string; description "Unique identifier of this VirtualStorageDesc in the VNFD."; reference "GS NFV IFA011: Section 7.1.9.4, Information elements related to Virtual Storage."; } leaf type-of-storage { // Needed to be able to onboard images type enumeration { enum "root"; enum "swap"; enum "ephemeral"; } default "root"; description "Type of virtualised storage resource (e.g. volume, object)."; reference "GS NFV IFA011: Section 7.1.9.4, Information elements related to Virtual Storage."; } leaf size-of-storage { type uint64; units "Gb"; default 1; description "Size of virtualised storage resource (e.g. size of volume, in Gb)"; reference "GS NFV IFA011: Section 7.1.9.4, Information elements related to Virtual Storage."; } list vdu-storage-requirements { key "key"; leaf key { type string; } leaf value { type string; } description "Array of key-value pairs that articulate the storage deployment requirements."; reference "GS NFV IFA011: Section 7.1.9.4.2, VirtualStorageDesc information element."; } leaf rdma-enabled { type boolean; description "Indicate if the storage support RDMA."; reference "GS NFV IFA011: Section 7.1.9.4, Information elements related to Virtual Storage."; } leaf sw-image-desc { type leafref { path "../../sw-image-desc/id"; } must "../nfv:size-of-storage >=" + "../../nfv:sw-image-desc[id=current()]/min-disk" { } description "Software image to be loaded on the VirtualStorage resource created based on this VirtualStorageDesc."; reference "GS NFV IFA011: Section 7.1.9.4, Information elements related to Virtual Storage."; } } list sw-image-desc { key "id"; description "Defines descriptors of software images to be used by the VNF."; reference "GS NFV IFA011: Section 7.1.2, VNFD Information element."; leaf id { type string; description "The identifier of this software image."; reference "GS NFV IFA011: Section 7.1.6.5, SwImageDesc information element"; } leaf name { type string; description "The name of this software image."; reference "GS NFV IFA011: Section 7.1.6.5 SwImageDesc information element."; } leaf version { type string; description "The version of this software image."; reference "GS NFV IFA011: Section 7.1.6.5 SwImageDesc information element."; } container checksum { leaf algorithm { type string; description "Species the algorithm used to obtain the checksum value."; reference "GS NFV IFA011: Section 7.1.6.10 ChecksumData information element."; } leaf hash { type string; description "Contains the result of applying the algorithm indicated by the algorithm attribute to the data to which this ChecksumData refers."; reference "GS NFV IFA011: Section 7.1.6.10 ChecksumData information element."; } description "The checksum of the software image file."; reference "GS NFV IFA011: Section 7.1.6.5 SwImageDesc information element."; } leaf container-format { default "bare"; type enumeration { enum "aki" { description "An Amazon kernel image."; } enum "ami" { description "An Amazon machine image."; } enum "ari" { description "An Amazon ramdisk image."; } enum "bare" { description "The image does not have a container or metadata envelope."; } enum "docker" { description "A docker container format."; } enum "ova" { description "An OVF package in a tarfile."; } enum "ovf" { description "The OVF container format."; } } description "The container format describes the container file format in which software image is provided."; reference "GS NFV IFA011: Section 7.1.6.5 SwImageDesc information element."; } leaf disk-format { default "qcow2"; type enumeration { enum "aki" { description "An Amazon kernel image."; } enum "ami" { description "An Amazon machine image."; } enum "ari" { description "An Amazon ramdisk image."; } enum "iso" { description "An archive format for the data contents of an disk, such as CD-ROM."; } enum "qcow2" { description "Supported by the QEMU emulator that can expand dynamically and supports Copy on Write."; } enum "raw" { description "An unstructured disk image format; if you have a file without an extension it is possibly a raw format."; } enum "vdi" { description "Supported by VirtualBox virtual machine monitor and the QEMU emulator."; } enum "vhd" { description "The VHD disk format, a common disk format used by virtual machine monitors from VMware, Xen, Microsoft, VirtualBox, and others."; } enum "vhdx" { description "The VHDX disk format, an enhanced version of the VHD format, which supports larger disk sizes among other features."; } enum "vmdk" { description "Common disk format supported by many common virtual machine monitors."; } } description "The disk format of a software image is the format of the underlying disk image."; } leaf min-disk { type uint64; units "Gb"; default 0; description "The minimal disk size requirement for this software image. The value of the 'size of storage' attribute of the VirtualStorageDesc referencing this SwImageDesc shall not be smaller than the value of minDisk."; reference "GS NFV IFA011: Section 7.1.6.5, SwImageDesc information element."; } leaf min-ram { type decimal64 { fraction-digits 1; range "0..max"; } units "Gb"; default 0; description "The minimal RAM requirement for this software image. The value of the 'size' attribute of VirtualMemoryData of the Vdu referencing this SwImageDesc shall not be smaller than the value of minRam."; reference "GS NFV IFA011: Section 7.1.6.5, SwImageDesc information element."; } leaf size { type uint64; units "Gb"; description "The size of this software image."; reference "GS NFV IFA011: Section 7.1.6.5, SwImageDesc information element."; } leaf image { 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."; } list desc-flavor { 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 "GS NFV IFA011: Section 7.1.8.5, VirtualLinkDescFlavor information element."; } container qos { description "QoS of the VL."; reference "GS NFV IFA011: Section 7.1.8.5, VirtualLinkDescFlavor 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; } } 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."; 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"; } } } } uses virtual-network-interface-requirements; uses vnf-cpd; } list df { 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 to the DeploymentFlavor."; } leaf description { type string; description "Human readable description of the deployment flavor"; reference "GS NFV IFA011: Section 7.1.8, Information elements to the DeploymentFlavor."; } 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 to the DeploymentFlavor."; 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; 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; 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."; } leaf type { type enumeration { enum affinity; enum anti-affinity; } description "Specifies whether the rule is an affinity rule or an anti-affinity rule."; reference "GS NFV IFA011: Section 7.1.8.12, AffinityOrAntiAffinity information element."; } leaf 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 7.1.8.12, AffinityOrAntiAffinity information element."; } } } list virtual-link-profile { key "id flavor"; 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."; } leaf flavor { type leafref { path "deref(../../../ext-cpd/int-virtual-link-desc)" + "/../desc-flavor/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."; } } 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 { key "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"; leaf 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/" + "nfv:vdu-profile[id=current()/../nfv:id]/" + "nfv:max-number-of-instances"; must ". >= ../../../../nfv:df/" + "nfv:vdu-profile[id=current()/../nfv:id]/" + "nfv:min-number-of-instances"; 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 { key "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"; leaf 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"; leaf instantiate-vnf-op-config { type string; 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 "VNF-specific parameter 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 "VNF-specific parameter 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; 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"; leaf parameter { type string; description "VNF-specific parameter to be passed when invoking the HealVnf operation."; reference "GS NFV IFA011: Section 7.1.5.6 HealVnfOpConfig information element"; } leaf 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; 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"; } } 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; 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"; } } } list affinity-or-anti-affinity-group { key "id"; description "The AffinityOrAntiAffinityGroup describes the affinity or anti-affinity relationship applicable between the virtualization containers to be created based on different VDUs, or between internal VLs to be created based on different VnfVirtualLinkDesc(s). Per VNF, the affinity/anti-affinity rules defined using this information element, using the LocalAffinityOrAntiAffinityRule information element, and using the placement constraints in the GrantLifecycleOperation as defined in ETSI GS NFV-IFA 007 [i.3] should be conflict-free. In case of conflicts, the placement constraints in the GrantLifecycleOperation shall take precedence."; reference "GS NFV IFA011: Section 7.1.8.2 VnfDf information element"; leaf id { type string; 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 AffinityOrAntiAffinityGroup information element"; } leaf type { mandatory true; type affinity-type; description "Specifies whether the rule is an affinity rule or an anti-affinity rule."; reference "GS NFV IFA011: Section 7.1.8.12 AffinityOrAntiAffinityGroup information element"; } leaf scope { mandatory true; type affinity-scope; description "Specifies the scope of the rule, possible values are 'NFVI-PoP', 'Zone', 'ZoneGroup', 'NFVI-node'."; reference "GS NFV IFA011: Section 7.1.8.12 AffinityOrAntiAffinityGroup information element"; } } list indicator { key "id"; leaf id { type string; description "Unique identifier."; reference "GS NFV IFA011: Section 7.1.11.2 VnfIndicator information element"; } leaf name { type string; description "The human readable name of the VnfIndicator."; reference "GS NFV IFA011: Section 7.1.11.2 VnfIndicator information element"; } leaf indicator-value { type string; description "Defines the allowed values or value ranges of this indicator."; reference "GS NFV IFA011: Section 7.1.11.2 VnfIndicator information element"; } leaf source { type enumeration { enum vnf; enum em; enum both; } description "Describe the source of the indicator. The possible values are: • VNF. • EM. • Both. This tells the consumer where to send the subscription request."; reference "GS NFV IFA011: Section 7.1.11.2 VnfIndicator information element"; } description "Declares the VNF indicators that are supported by this VNF (specific to this DF)."; reference "GS NFV IFA011: Section 7.1.8.2 VnfDf information element"; } list supported-vnf-interfaces { key "name"; leaf name { type enumeration { enum vnf-configuration; enum vnf-indicator; } description "Identifies an interface produced by the VNF. Valid values: - VNF_CONFIGURATION - VNF_INDICATOR"; reference "GS NFV IFA011: Section 7.1.8.16 VnfInterfaceDetails information element"; } leaf-list cpd-id { type leafref { path "../../../ext-cpd/id"; } description "References one or more CPDs from which to instantiate external CPs through which interface endpoints on the VNF side can be reached by the VNFM."; reference "GS NFV IFA011: Section 7.1.8.16 VnfInterfaceDetails information element"; } list interface-details { key "key"; leaf key { type string; } leaf value { type string; } } description "Indicates which interfaces the VNF produces and provides additional details on how to access the interface endpoints."; reference "GS NFV IFA011: Section 7.1.8.2 VnfDf information element"; } list monitoring-parameter { key "id"; description "Defines the virtualised resources monitoring parameters on VNF level."; reference "GS NFV IFA011: Section 7.1.8.2 VnfDf information element"; 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; } list scaling-aspect { key "id"; description "The scaling aspects supported by this DF of the VNF. scalingAspect shall be present if the VNF supports scaling."; reference "GS NFV IFA011: Section 7.1.8.2 VnfDf information element"; leaf id { type string; description "Unique identifier of this aspect in the VNFD."; reference "GS NFV IFA011: Section 7.1.10.2 ScalingAspect information element"; } leaf name { type string; description "Human readable name of the aspect."; reference "GS NFV IFA011: Section 7.1.10.2 ScalingAspect information element"; } leaf description { type string; description "Human readable description of the aspect."; reference "GS NFV IFA011: Section 7.1.10.2 ScalingAspect information element"; } leaf max-scale-level { type uint32 { range "1..max"; } description "The maximum scaleLevel for total number of scaling steps that can be applied w.r.t. this aspect. The value of this attribute corresponds to the number of scaling steps can be applied to this aspect when scaling it from the minimum scale level (i.e. 0) to the maximum scale level defined by this attribute."; reference "GS NFV IFA011: Section 7.1.10.2 ScalingAspect information element"; } container aspect-delta-details { list deltas { key "id"; min-elements 1; leaf id { type string; description "Identifier of this scaling delta."; reference "GS NFV IFA011: Section 7.1.10.4 ScalingDelta information element"; } list vdu-delta { key "id"; leaf id { type leafref { path "/nfv/vnfd/vdu/id"; } description "Uniquely identifies a VDU."; reference "GS NFV IFA011: Section 7.1.8.9 VduLevel information element"; } leaf number-of-instances { type uint32 { range "0..max"; } description "Number of instances of VNFC based on this VDU to deploy for an instantiation level or for a scaling delta. Shall be zero or greater."; reference "GS NFV IFA011: Section 7.1.8.9 VduLevel information element"; } description "The number of VNFC instances based on particular VDUs to be created or removed."; reference "GS NFV IFA011: Section 7.1.10.4 ScalingDelta information element"; } list virtual-link-bit-rate-delta { key "id"; leaf id { type string; description "Uniquely identifies a VnfVirtualLinkDesc."; reference "GS NFV IFA011: Section 7.1.10.5 VirtualLinkBitRateLevel information element"; } container bit-rate-requirements { leaf root { type uint32; units bits/sec; mandatory true; 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; units bits/sec; 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 "Bitrate requirements for an instantiation level or bitrate delta for a scaling step."; reference "GS NFV IFA011: Section 7.1.10.5 VirtualLinkBitRateLevel information element"; } description "The bitrate to be added or removed to virtual links created from particular virtual link descriptors."; reference "GS NFV IFA011: Section 7.1.10.4 ScalingDelta information element"; } description "Declares different scaling deltas, each of which is applied for one or more scaling steps of this aspect."; reference "GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails information element"; } leaf step-deltas { type leafref { path "../deltas/id"; } description "Identifiers of the individual scaling deltas to be applied for the subsequent scaling steps of this aspect. The first entry in the array shall correspond to the first scaling step (between scale levels 0 to 1) and the last entry in the array shall correspond to the last scaling step (between maxScaleLevel-1 and maxScaleLevel). Each referenced scaling delta shall be declared in the 'deltas' attribute."; reference "GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails information element"; } description "A specification of the deltas in terms of number of instances of VNFCs and virtual link bit rates that correspond to the scaling steps of this aspect. A cardinality of zero indicates that this mapping has to be specified in a lifecycle management script or be otherwise known to the VNFM. The information in this attribute, if provided, shall be consistent with the information provided in the 'InstantiationLevel' information element. If this attribute is provided, it shall be provided for all scaling aspects."; reference "GS NFV IFA011: Section 7.1.10.2 ScalingAspect information element"; } } } container configurable-properties { description "Describes the configurable properties of the VNF (e.g. related to auto scaling and auto healing)."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; leaf auto-scalable { type boolean; description "It permits to enable (TRUE) / disable (FALSE) the auto-scaling functionality."; reference "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties information element"; } leaf auto-healable { type boolean; description "It permits to enable (TRUE) / disable (FALSE) the auto-healing functionality."; reference "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties information element"; } list additional-configurable-property { key "key"; leaf key { type string; } leaf value { type string; } description "It provides VNF specific configurable properties that can be modified using the ModifyVnfConfiguration operation."; reference "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties information element"; } } container modifiable-attributes { description "Describes the modifiable attributes of the VNF."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; leaf-list extension { type string; description "Additional VNF-specific attributes of VnfInfo that affect the lifecycle management of a VNF instance and that are writeable. For each VNF instance, these attributes are stored persistently by the VNFM and can be queried and modified through the VNFM. These attributes are intended to be consumed by the VNFM or by the lifecycle management scripts during the execution of VNF lifecycle management operations. Modifying these values has no direct effect on the VNF instance; however, modified values can be considered during subsequent VNF lifecycle management operations, which means that the modified values can indirectly affect the configuration of the VNF instance."; reference "GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes information element"; } leaf-list metadata { type string; description "Additional VNF-specific attributes of VnfInfo that are writeable and that provide metadata describing the VNF instance. For each VNF instance, these attributes are stored persistently by the VNFM and can be queried and modified through the VNFM. These attributes are intended to provide information to functional blocks external to the VNFM and will not be used by the VNFM or the VNF lifecycle management scripts when executing lifecycle management operations. Modifying these attributes has no effect on the VNF instance. It only affects the attribute values stored by the VNFM."; reference "GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes information element"; } } list lifecycle-management-script { key "event"; description "Includes a list of events and corresponding management scripts performed for the VNF."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; leaf event { type internal-lifecycle-management-script-event; description "Describes VNF lifecycle event(s) or an external stimulus detected on a VNFM reference point."; reference "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript information element"; } leaf lcm-transition-event { type string; description "Describes the transition VNF lifecycle event(s) that cannot be mapped to any of the enumerated values defined for the event attribute."; reference "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript information element"; } leaf script { type string; description "Includes a VNF LCM script (e.g. written in a DSL as specified in requirement VNF_PACK.LCM.001) triggered to react to one of the events listed in the event attribute."; reference "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript information element"; } leaf script-dsl { type string; description "Defines the domain specific language (i.e. the type) of script that is provided. Types of scripts could include bash, python, etc."; reference "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript information element"; } list script-input { key "key"; leaf key { type string; } leaf value { type string; } description "Array of KVP requirements with the key as the parameter name and the value as the parameter that need to be passed as an input to the script."; reference "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript information element"; } } list element-group { key "id"; description "Describes the associated elements of a VNFD for a certain purpose during VNF lifecycle management."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; leaf id { type string; description "Unique identifier of this group in the VNFD."; reference "GS NFV IFA011: Section 7.1.4 VnfdElementGroup information element"; } leaf description { type string; description "Human readable description of the group."; reference "GS NFV IFA011: Section 7.1.4 VnfdElementGroup information element"; } leaf-list vdu { type leafref { path "../../nfv:vdu/nfv:id"; } description "References to Vdus that are part of this group."; reference "GS NFV IFA011: Section 7.1.4 VnfdElementGroup information element"; } leaf-list virtual-link-desc { type leafref { path "../../nfv:int-virtual-link-desc/nfv:id"; } description "References to VnfVirtualLinkDesc that are part of this group."; reference "GS NFV IFA011: Section 7.1.4 VnfdElementGroup information element"; } } list indicator { key "id"; description "Declares the VNF indicators that are supported by this VNF."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; leaf id { type string; description "Unique identifier"; reference "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator information element"; } leaf name { type string; description "The human readable name of the VnfIndicator."; reference "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator information element"; } leaf-list indicator-value { type string; description "Defines the allowed values or value ranges of this indicator."; reference "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator information element"; } leaf source { type enumeration { enum "vnf"; enum "em"; enum "both"; } description "Describe the source of the indicator. The possible values are: • VNF. • EM. • Both. This tells the consumer where to send the subscription request."; reference "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator information element"; } } leaf-list auto-scale { type string; description "Rule that determines when a scaling action needs to be triggered on a VNF instance e.g. based on certain VNF indicator values or VNF indicator value changes or a combination of VNF indicator value(s) and monitoring parameter(s)."; reference "GS NFV IFA011: Section 7.1.2 VNFD information element"; } } } }