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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifier of this NSD class. It globally uniquely identifies an instance of the NSD
...
designer
...
String
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifies the designer of the NSD.
...
version
...
Version
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifies the version of the NSD.
...
nsdName
...
String
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides the human readable name of the NSD.
...
nsdInvariantId
...
Identifier
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifies an NSD in a version independent manner. This attribute is invariant across versions of NSD.
...
autoScalingRule
...
Rule
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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
...
lifeCycleManagementScript
...
NsLifeCycleManagementScript
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides a life cycle management script written in a Domain Specific Language (DSL).
...
security
...
SecurityParameters
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides a signature to prevent tampering.
...
_nsdf
...
NsDf
...
1..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifies a DF within the scope of an NSD.
...
_sapd
...
Sapd
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides the descriptor of a SAP of the NS.
...
_vnffgd
...
Vnffgd
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides the descriptors of the applicable forwarding graphs. Cardinality of 0 means that the NS is a NF set with unspecified connectivity.
...
_virtualLinkdesc
...
NsVirtualLinkDesc
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Provides the constituent VLDs. Cardinality of 0 means that the NS is a NF set with unspecified connectivity.
...
_vnfdId
...
Vnfd
...
0..*
...
PassedByReference
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
References the VNFD of a constituent VNF.
...
_pnfdId
...
Pnfd
...
0..*
...
PassedByReference
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
References the PNFD of a constituent PNF.
...
_nestedNsdId
...
NetworkServiceDescriptor
...
0..*
...
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
References the NSD of a constituent nested NS.
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Identifies this NsDf class. It identifies a NS DF within the NSD.
...
flavourKey
...
String
...
1
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
...
monitoredInfo
...
MonitoredData
...
0..*
...
Experimental
OnapModelLifecycle
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
...
Identifies either a virtualised resource-related performance metric or a VNF Indicator.
...
_nsInstantiationLevel
...
NsLevel
...
1..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
...
_defaultNsInstantiationLevel
...
NsLevel
...
0..1
...
Experimental
OnapModelLifecycle
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
...
...
_affinityOrAntiAffinitygroup
...
AffinityOrAntiAffinityGroup
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
...
_scalingAspect
...
NsScalingAspect
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
The scaling aspects supported by this DF of the NS.
...
_pnfProfile
...
PnfProfile
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
PNF profile to be used for the NS flavour.
...
_nsProfile
...
NsProfile
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Specifies a NS Profile supported by this NS DF.
...
_vnfProfile
...
VnfProfile
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
VNF profile to be used for the NS flavour.
...
_dependencies
...
Dependencies
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
Specifies the order in which instances of the VNFs and/or nested NSs have to be created.
...
_virtualLinkprofile
...
VirtualLinkProfile
...
0..*
...
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
...
VL profile to be used for the NS flavour.
NsVirtualLinkDesc
The NsVirtualLinkDesc class provides general information enabling the instantiation of virtual links.
Applied stereotypes:
- Experimental
- OpenModelClass
- support: MANDATORY
- OnapModelLifecycle
- state: INPUT
NSVirtualLinkDesc - Network Service Virtual Link Descriptor
Sapd - Service Access Point Descriptor
NsDf - Network Service Deployment Flavor
Vnffgd - VNF Forwarding Graph Descriptor
Pnfd - PNF Descriptor
Vnfd - VNF Descriptor
VnfExtCpd - VNF External CP Descriptor
Datatypes
MonitoredData
NsLifeCycleManagementScript
VirtualLinkDf
ServiceAvailabilityLevel
NsQos
ConnectivityType
Attribute Name | Type | Mult. | Access | Stereotypes | Description |
layerProtocol |
LayerProtocol |
1 |
RW | OpenModelAttribute
|
OnapModelLifecycle
Defines the organization generating the VLD.
virtuaLinkDescVersion
Version
1
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Specifies the version of the VLD.
virtualLinkDf
VirtualLinkDf
1..*
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Specifies properties for instantiating a VL according to a specific flavour.
security
SecurityParameters
0..1
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Provides a signature to prevent tampering.
virtualLinkDescId
Identifier
1
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
connectivityType
ConnectivityType
1
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Specifies the protocol exposed by a VL and the flow pattern supported by the VL.
testAccess
String
0..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Identifies the protocol this VL gives access to (Ethernet, MPLS, ODU2, IPV4, IPV6, Pseudo-Wire).
|
flowPattern | String | 0..1 | RW | OpenModelAttribute
|
OnapModelLifecycle
Provides human-readable information on the purposeIdentifies the flow pattern of the |
connectivity (Line, Tree, Mesh).
|
...
SecurityParameters
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:
...
- support: MANDATORY
...
SecurityParameters contains the signature of a NSD, VLD, PNFD or VNFFGD instance together with information required to validate the signature.
Attribute Name | Type | Mult. | Access | Stereotypes | Description |
signature |
String | 1 |
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
associatedCpdId
Cpd
0..1
PassedByReference
ExperimentalRW | OpenModelAttribute
|
OnapModelLifecycle
ReferencesProvides the |
nsVirtualLinkDescId
NsVirtualLinkDesc
0..1
PassedByReference
Experimental
OnapModelLifecycle
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
signature of the signed part of the descriptor.
|
cpdId
Identifier
1
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Preliminary
Identifier of this Cpd information element.
description
String
0..1
algorithm | String |
0..1
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
1 | RW | OpenModelAttribute
|
OnapModelLifecycle
Preliminary
Provides human-readable information on the purpose of the CP (e.g. CP for control plane traffic)Identifies the algorithm used to compute the signature.
|
cpProtocol
CpProtocolData
1..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
trunkMode
Boolean
1
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Preliminary
Information about whether the CP instantiated from this CPD is in Trunk mode (802.1Q or other).
allowedAddressData
AddressData
0..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
Preliminary
For specifying floating IP(s) to be shared among Cpds, which are reserved for vnfReservedCpd described in the VNFD.
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
OnapModelLifecyclecertificate | invalid | 0..1 | RW | OpenModelAttribute
|
Identifier of this Vnffgd information element. It uniquely identifies a VNFFGD.
vnfdId
Vnfd
1..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
cpdPoolId
CpdPool
1..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
nfpd
Nfpd
0..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
OnapModelLifecycle
The network forwarding path associated to the VNFFG.
_nsVirtualLinkDesc
NsVirtualLinkDesc
1..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
_pnfd
Pnfd
0..*
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Identifies this VirtualLinkDF datatype within a VLD.
qos
NsQoS
0..1
RW
OnapModelLifecycle
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Specifies quality of service parameters applicable to a VL.
serviceAvaibilityLevel
0..1
RW
OnapModelLifecycle
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Provides a certificate or a reference to a certificate to validate the signature. NOTE: Cardinality of 0 corresponds to the case where the certificate is provided by means outside the NSD
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