This model is based on the ETSI model defined in IFA014/IFA015 v2.4.4
Class Diagram
Classes
NSD - Network Service Descriptor
The NSD class is a deployment template whose instances are used by the NFVO for the lifecycle management of NSs.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
Attribute Name | Type | Mult. | Stereotypes | Description |
nsdIdentifier | Identifier | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Identifier of this NSD class. It globally uniquely identifies an instance of the NSD
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designer | String | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Identifies the designer of the NSD.
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version | Version | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Identifies the version of the NSD.
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nsdName | String | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Provides the human readable name of the NSD.
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nsdInvariantId | Identifier | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Identifies an NSD in a version independent manner. This attribute is invariant across versions of NSD.
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autoScalingRule | Rule | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies a rule to trigger a scaling action on a NS instantiated according to the NSD. NOTE 1: The rule is based on a combination of assertions on the values of virtualised resource-related performance metrics and VNF Indicators identified by the monitoredInfo attribute. NOTE 2: There may be multiple data sources (each identified as monitoredInfo) per rule
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lifeCycleManagementScript | NsLifeCycleManagementScript | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Provides a life cycle management script written in a Domain Specific Language (DSL).
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security | SecurityParameters | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Provides a signature to prevent tampering.
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_nsdf | NsDf | 1..* | Experimental OpenModelAttribute
OnapModelLifecycle | Identifies a DF within the scope of an NSD.
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_sapd | Sapd | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Provides the descriptor of a SAP of the NS.
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_vnffgd | Vnffgd | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Provides the descriptors of the applicable forwarding graphs. Cardinality of 0 means that the NS is a NF set with unspecified connectivity.
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_virtualLinkdesc | NsVirtualLinkDesc | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Provides the constituent VLDs. Cardinality of 0 means that the NS is a NF set with unspecified connectivity.
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_vnfdId | Vnfd | 0..* | PassedByReference Experimental OpenModelAttribute
OnapModelLifecycle | References the VNFD of a constituent VNF.
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_pnfdId | Pnfd | 0..* | PassedByReference Experimental OpenModelAttribute
OnapModelLifecycle | References the PNFD of a constituent PNF.
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_nestedNsdId | NetworkServiceDescriptor | 0..* | OpenModelAttribute
OnapModelLifecycle | References the NSD of a constituent nested NS.
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NsDf (Network Service Deployment Flavor)
The NsDf class specifies the properties of a variant of an NS. NOTE: Every VNF, VL and nested NS whose descriptor is referenced by the NS DF shall be involved in an NS instantiation level of the parent NS. If no instances of a given VNF/nested NS have to be deployed at NS instantiation time, the numberOfInstances attribute in the corresponding VnfToLevelMapping/NsToLevelMapping datatype shall be set to 0.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
Attribute Name | Type | Mult. | Stereotypes | Description |
nsDfId | Identifier | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Identifies this NsDf class. It identifies a NS DF within the NSD.
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flavourKey | String | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Assurance parameter against which this flavour is being described. The key can be a combination of multiple assurance parameters with a logical relationship between them. The parameters should be present as a monitoredInfo attribute in the NSD.
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monitoredInfo | MonitoredData | 0..* | Experimental OnapModelLifecycle OpenModelAttribute
| Identifies either a virtualised resource-related performance metric or a VNF Indicator.
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_nsInstantiationLevel | NsLevel | 1..* | Experimental OpenModelAttribute
OnapModelLifecycle | Describes the details of an NS level. NOTE: Every VNF, VL and nested NS whose descriptor is referenced by the NS DF shall be involved in an NS instantiation level of the parent NS. If no instances of a given VNF/nested NS have to be deployed at NS instantiation time, the numberOfInstances attribute in the corresponding VnfToLevelMapping/NsToLevelMapping datatype shall be set to 0.
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_defaultNsInstantiationLevel | NsLevel | 0..1 | Experimental OnapModelLifecycle OpenModelAttribute
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_affinityOrAntiAffinitygroup | AffinityOrAntiAffinityGroup | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies affinity or anti-affinity relationship applicable between the VNF instances created using different VNFDs, the Virtual Link instances created using different NsVirtualLinkDescs or the nested NS instances created using different NSDs in the same affinity or anti-affinity group.
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_scalingAspect | NsScalingAspect | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | The scaling aspects supported by this DF of the NS.
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_pnfProfile | PnfProfile | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | PNF profile to be used for the NS flavour.
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_nsProfile | NsProfile | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies a NS Profile supported by this NS DF.
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_vnfProfile | VnfProfile | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | VNF profile to be used for the NS flavour.
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_dependencies | Dependencies | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies the order in which instances of the VNFs and/or nested NSs have to be created.
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_virtualLinkprofile | VirtualLinkProfile | 0..* | Experimental OpenModelAttribute
OnapModelLifecycle | VL profile to be used for the NS flavour.
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NsVirtualLinkDesc
The NsVirtualLinkDesc class provides general information enabling the instantiation of virtual links.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
Attribute Name | Type | Mult. | Stereotypes | Description |
vitualLinkDescProvider | String | 0..1 | Experimental OpenModelAttribute
OnapModelLifecycle | Defines the organization generating the VLD.
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virtuaLinkDescVersion | Version | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies the version of the VLD.
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virtualLinkDf | VirtualLinkDf | 1..* | Experimental OpenModelAttribute
OnapModelLifecycle | Specifies properties for instantiating a VL according to a specific flavour.
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security | SecurityParameters | 0..1 | Experimental OpenModelAttribute
OnapModelLifecycle | Provides a signature to prevent tampering.
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virtualLinkDescId | Identifier | 1 | OpenModelAttribute
OnapModelLifecycle | Uniquely identifies a VLD in the parent descriptor. For VnfVirtualLinkDesc, the parent descriptor is the VNFD. For NsVirtualLinkDesc, the parent descriptor is the NSD. Note: the description of this class are different in ETSI GS NFV IFA 011 and ETSI GS NFV IFA 014. The present definition merges the 2 definitions.
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connectivityType | ConnectivityType | 1 | OpenModelAttribute
OnapModelLifecycle | Specifies the protocol exposed by a VL and the flow pattern supported by the VL.
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testAccess | String | 0..* | OpenModelAttribute
OnapModelLifecycle | Specifies test access facilities expected on the VL (e.g. none, passive monitoring, or active (intrusive) loopbacks at endpoints.
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description | String | 0..1 | OpenModelAttribute
OnapModelLifecycle | Provides human-readable information on the purpose of the VL (e.g. control plane traffic).
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Sapd - Service Access Point Descriptor
The SAPD class specifies the information used to instantiate the service access points of an NS. A Sapd inherits from the Cpd class. All attributes of the Cpd are also attributes of the Sapd.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
Attribute Name | Type | Mult. | Stereotypes | Description |
sapAddressAssignment | Boolean | 1 | Experimental OpenModelAttribute
OnapModelLifecycle | Specify whether the SAP address assignment is under the responsibility of management and orchestration functions or not. If it is set to True, management and orchestration functions are responsible for assigning addresses to the access points instantiated from this SAPD.
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associatedCpdId | Cpd | 0..1 | PassedByReference Experimental OpenModelAttribute
OnapModelLifecycle | References the descriptor of VNF or PNF external connection points the SAPs instantiated from this SAPD are mapped to.
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nsVirtualLinkDescId | NsVirtualLinkDesc | 0..1 | PassedByReference Experimental OnapModelLifecycle OpenModelAttribute
| References the descriptor of the NS VL instance to which the SAP instantiated from this SAPD connects to.
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cpdId | Identifier | 1 | OpenModelAttribute
OnapModelLifecycle Preliminary | Identifier of this Cpd information element.
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cpRole | String | 0..1 | OpenModelAttribute
OnapModelLifecycle Preliminary | 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.
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description | String | 0..1 | OpenModelAttribute
OnapModelLifecycle Preliminary | Provides human-readable information on the purpose of the CP (e.g. CP for control plane traffic).
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cpProtocol | CpProtocolData | 1..* | OpenModelAttribute
OnapModelLifecycle Preliminary | 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. Editor's note: the attribute "layerProtocol" still needs further discussion and not included in this table.
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trunkMode | Boolean | 1 | OpenModelAttribute
OnapModelLifecycle Preliminary | Information about whether the CP instantiated from this CPD is in Trunk mode (802.1Q or other).
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allowedAddressData | AddressData | 0..* | OpenModelAttribute
OnapModelLifecycle Preliminary | For specifying floating IP(s) to be shared among Cpds, which are reserved for vnfReservedCpd described in the VNFD.
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Vnffgd - VNF Forwarding Graph Descriptor
The Vnffgd class specifies a topology of connectivity of a NS and optionally forwarding rules applicable to the traffic conveyed over this topology.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
Attribute Name | Type | Mult. | Stereotypes | Description |
vnffgdId | Identifier | 1 | Experimental OnapModelLifecycle OpenModelAttribute
| Identifier of this Vnffgd information element. It uniquely identifies a VNFFGD.
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vnfdId | Vnfd | 1..* | OpenModelAttribute
OnapModelLifecycle | References the VNFD of a constituent VNF. NOTE 1: The list of constituent VNFs, PNFs, and nested NS SAPs of a VNFFG can be identical to the list of constituent VNFs, PNFs and nested NSs of the parent NSD, or can be a subset of it. NOTE 2: The presence of a VNFD or PNFD identifier in a VNFFGD does not imply that all connection points instantiated from all embedded CPDs are connected to the VNFFG instantiated using the VNFFGD.
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cpdPoolId | CpdPool | 1..* | OpenModelAttribute
OnapModelLifecycle | A reference to a pool of descriptors of connection points attached to one of the constituent VNFs and PNFs and/or one of the SAPs of the parent NS or of a nested NS.
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nfpd | Nfpd | 0..* | OpenModelAttribute
OnapModelLifecycle | The network forwarding path associated to the VNFFG.
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_nsVirtualLinkDesc | NsVirtualLinkDesc | 1..* | OpenModelAttribute
OnapModelLifecycle | References the VLD of a constituent VL. NOTE: The presence of a VLD identifier in a VNFFGD does not imply that all connection points of the VLs instantiated using this VL are connected to the VNFFG instantiated using the VNFFGD.
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_pnfd | Pnfd | 0..* | OpenModelAttribute
OnapModelLifecycle | References the PNFD of a constituent PNF. NOTE 1 : The list of constituent VNFs, PNFs, and nested NS SAPs of a VNFFG can be identical to the list of constituent VNFs, PNFs and nested NSs of the parent NSD, or can be a subset of it. NOTE 2: The presence of a VNFD or PNFD identifier in a VNFFGD does not imply that all connection points instantiated from all embedded CPDs are connected to the VNFFG instantiated using the VNFFGD.
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MonitoredData
The MonitoredData datatype identifies information to be monitored during the lifetime of a network service instance.
Attribute Name | Type | Mult. | Access | Stereotypes | Description |
vnfIndicatorInfo | VnfIndicatorData | 0..1 | RW | OnapModelLifecycle OpenModelAttribute
| Uniquely identifies the VNF Indicator class. One and only one of the attributes shall be included (i.e. there is a XOR relationship between the attributes). |
monitoringParameter | 0..1 | RW | OnapModelLifecycle OpenModelAttribute
| Specifies the virtualised resource related performance metric to be monitored on an NS level or VNF level. One and only one of the attributes shall be included (i.e. there is a XOR relationship between the attributes). |
1.1.2 NsLifeCycleManagementScript
The LifeCycleManagementScript information element specifies a script for the NS.
Attribute Name | Type | Mult. | Access | Stereotypes | Description |
event | String | 1..* | RW | OnapModelLifecycle OpenModelAttribute
| Describes NS lifecycle event(s) or an external stimulus detected on an NFVO reference point. NOTE 1: A minimum set of NS lifecycle events triggered internally by the NFVO includes: start instantiation, end instantiation, start scaling, end scaling, start healing, end healing, start termination, end termination, start update, end update. NOTE 2: A minimum set of external stimulus includes: the receipt of request message of instantiation, scaling, healing, termination, update of NS. |
script | invalid | 1 | RW | OnapModelLifecycle OpenModelAttribute
| Includes an NS LCM script (e.g., written in a DSL) triggered to react to one of the events listed in the event attribute. |
1.1.3 VirtualLinkDf
The VirtualLinkDf datatype specifies properties for instantiating a VL according to a specific flavour.
Attribute Name | Type | Mult. | Access | Stereotypes | Description |
flavourId | 1 | RW | OnapModelLifecycle OpenModelAttribute
| Identifies this VirtualLinkDF datatype within a VLD. | |
qos | NsQoS | 0..1 | RW | OnapModelLifecycle OpenModelAttribute
| Specifies quality of service parameters applicable to a VL. |
serviceAvaibilityLevel | 0..1 | RW | OnapModelLifecycle OpenModelAttribute
| Specifies one of the three levels defined in ETSI GS NFV-REL 001: • Level 1 • Level 2 • Level 3 |