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Class
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NSD
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. For all attributes in this class, the Producer is SDC and the Consumer is SDC/UUI/VFC
Applied stereotypes:
- Preliminary
- OpenModelClass
- support: MANDATORY
derived from ServiceComponentDescriptor
nestedNS, vnffgd, and sapd will be considered in the R4+ in VFC project.
Attribute Name
Type
Mult.
Stereotypes
Description
nsdIdentifier
Identifier
1
Preliminary
OpenModelAttribute
- isInvariant: true
- valueRange: no range constraint
- support: MANDATORY
R2+ Attributes | Required | Cardinality | Content | Description | Producer | Consumer |
nsdIdentifier | M | 1 | Identifier | Identifier of this NSD information |
an instance of the NSD. |
designer
String
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | |||
designer | M | 1 | String | Identifies the designer of the NSD. |
version
Version
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | |||
version | M | 1 | Version | Identifies the version of the NSD. |
nsdName
String
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | |||
nsdName | M | 1 | String | Provides the human readable name of |
nsdInvariantId
Identifier
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | |||
nsdInvariantId | M | 1 | Identifier | Identifies an NSD in a version |
autoScalingRule
SDC | SDC/UUI/VFC | |
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Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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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vnfdid | M | 0..N | String | References the VNFD of a constituent VNF. | SDC | SDC/UUI/VFC |
pnfdId | M | 0..N | String | References the PNFD of a constituent PNF. | SDC | SDC/UUI/VFC |
virtualLinkDesc | M | 0..N | Provides the constituent VLDs. | SDC | SDC/UUI/VFC | |
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monitoredInfo | M | 0..N |
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monitoredInfo
MonitoredData
0..*
Preliminary
OpenModelAttribute
Identifies either a virtualised resource-related performance metric or a VNF Indicator. |
lifeCycleManagementScript
SDC | SDC/UUI/VFC | |
autoScalingRule | M | 0.. |
N | Rule | Specifies a rule to trigger a scaling action on a NS instantiated according to the NSD. | SDC | SDC/UUI/VFC |
lifeCycleManagementScript | M | 0..N | LifeCycleManagementScript |
Preliminary
OpenModelAttribute
Provides a life cycle management script written in a Domain Specific Language (DSL). |
_virtualLinkDesc
NsVirtualLinkDesc
0..*
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Provides the constituent VLDs. Cardinality of 0 means that the NS is a NF set with unspecified connectivity.
_vnfdId
Vnfd
0..*
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
PassedByReference
References the VNFD of a constituent VNF.
_pnfdId
Pnfd
0..*
Experimental
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
PassedByReference
References the PNFD of a constituent PNF.
NSVirtualLinkDesc - Network Service Virtual Link Descriptor
The NsVirtualLinkDesc class provides general information enabling the instantiation of virtual links. For all attributes in this class the Producer is SDC and the Consumer is SDC/UUI/VFC.
Parent class: VirtualLinkDesc
Applied stereotypes:
- Preliminary
- OpenModelClass
- support: MANDATORY
SDC | SDC/UUI/VFC | |||||
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NsVirtualLink
Attribute Name
Type
Mult.
Stereotypes
Description
Attribute Name | Type | Multiplicity | Description | Applied Stereotypes | Producer | Consumer |
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virtualLinkDescId | Identifier | 1 | Identifier of the NsVirtualLinkDesc information element. It uniquely identifies a VLD. | support: MANDATORY | SDC | SDC/UUI/VFC |
vitualLinkDescProvider | String | 0..1 |
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Defines the organization generating the VLD. |
support: |
Option |
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | ||
virtualLinkDescVersion | String | 1 | Specifies the version of the VLD. |
support: MANDATORY |
VirtualLinkDf
1..*
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
SDC | SDC/UUI/VFC | |||||
connectivityType | ConnectivityType | 1 | The ConnectivityType information element specifies the protocol exposed by a VL and the flow pattern supported by the VL. | support: MANDATORY | SDC | SDC/UUI/VFC |
virtualLinkDf | VirtualLinkDf | The VirtualLinkDf information element specifies |
properties for instantiating a VL according to a specific flavour. |
support: MANDATORY |
Identifier
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
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.
SDC | SDC/UUI/VFC | |||||
connectivityType
ConnectivityType
1
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
description | String | 0..1 |
Preliminary
OpenModelAttribute
Provides human-readable information on the purpose of the VL (e.g. control plane traffic). |
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See VNFD Model
VnfExtCpd - VNF External CP Descriptor
See VNFD Model
Pnfd - PNF Descriptor
Refer to PNF resource IM proposal
Datatypes
MonitoredData
The MonitoredData datatype identifies information to be monitored during the lifetime of a network service instance.
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Attribute Name
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Type
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Mult.
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Access
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Stereotypes
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Description
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vnfIndicatorInfo
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VnfIndicatorData
...
0..1
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RW
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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).
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monitoringParameter
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0..1
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RW
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OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
support: MANDATORY | SDC | SDC/UUI/VFC | ||||
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Vnfd | Association | 0..* to 0..* | Vnfd binds to an NS Virtual Link Descriptor via VNF external CPs. VNF extenrnal CPs are exposed to NSD via VNFD | support: Option | SDC | SDC/UUI/VFC |
Pnfd | Association | 0..* to 0..* | PNFD binds to an NS Virtual Link Descriptor via PNF external CPs. PNF extenrnal CPs are exposed to NSD via PNFD | support: Option | SDC | SDC/UUI/VFC |
Vnfd
refer to resource definition
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).
NsLifeCycleManagementScript
The LifeCycleManagementScript information element specifies a script for the NS.
Attribute Name | Type | Mult. |
Stereotypes
Description |
NSVirtualLinkDesc |
String
Association | 0..* to 0 |
..* |
RW
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
String
1
RW
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.
VirtualLinkDf
VNF binds to an NS Virtual Link Descriptor via VNF external CPs. VNF extenrnal CPs are exposed to NSD via VNF |
Pnfd
refer to PNF resource IM proposalThe VirtualLinkDf datatype specifies properties for instantiating a VL according to a specific flavour.
Attribute Name | Type | Mult. |
Access
Description |
flavourId
Identifier
1
RW
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Identifies this VirtualLinkDF datatype within a VLD.
qos
NsQoS
0..1
RW
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
Specifies quality of service parameters applicable to a VL.
serviceAvaibilityLevel
ServiceAvailabilityLevel
0..1
RW
Preliminary
OpenModelAttribute
- isInvariant: false
- valueRange: no range constraint
- support: MANDATORY
NSVirtualLinkDesc | Association | 0..* to 0..* | PNF binds to an NS Virtual Link Descriptor via PNF external CPs. PNF extenrnal CPs are exposed to NSD via PNF |
DataType
ConnectivityType
Attribute Name | Type | |||||
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Multiplicity | ||||||
Description | Applied Stereotypes | |||||
Description layerProtocol | layerProtocolEnum LayerProtocol | 1 | RW | OpenModelAttribute
| Identifies Identifies the protocol this VL gives access to ( | support: MANDATORY |
flowPattern | String | 0..1 | RW | OpenModelAttribute
| Identifies Identifies the flow pattern of the connectivity (Line, Tree, Mesh). |
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support: MANDATORY |
VirtualLinkDf
The NsQoS datatype specifies quality of service parameters applicable to a NS VL.
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Attribute Name | Type | |||||||
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Multiplicity | ||||||||
Description | Applied Stereotypes | |||||||
Description flavourId | priority Identifier | Integer | 0..1 | RW | Preliminary OpenModelAttribute
| 1 | Identifies a flavour within a VnfVirtualLinkDesc. | support: MANDATORY |
qos | QoS | 0..1 | QoS of the VL. | support: MANDATORY | ||||
serviceAvaibilityLevel | Enum ServiceAvailabilityLevel | 0..1 | Specifies one of the three levels defined in ETSI | support: MANDATORY |
QoS
Attribute Name | Type | Multiplicity | Description | Applied Stereotypes | ||||||||||||
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latency | Number | 1 | Maximum latency in ms. | support: MANDATORY | ||||||||||||
packetDelayVariation | Number | 1 | Maximum jitter in ms. | support: MANDATORY | ||||||||||||
latency | Number | 1 | RW | Preliminary OpenModelAttribute
| packetDelayVariation | Number | 1 | RW | Preliminary OpenModelAttribute
| packetLossRatio | Number | 0..1 | RW | Preliminary OpenModelAttribute
| Maximum Maximum packet loss ratio. Cardinality is 0 if no packetLossRatio requirement exists. | support: MANDATORY |
priority | Integer | 0..1 | Specifies the priority level in case of congestion on the underlying physical links. | support: MANDATORY |
Enumerations
ServiceAvailabilityLevel
Specifies one of the three levels defined in ETSI GS NFV-REL 001: • Level 1 • Level 2 • Level 3
Contains Enumeration Literals:
- LEVEL_1:
- LEVEL_2:
- LEVEL_3:
Primitives
Number
This primitive type is a superset of the standard UML numbering primitives, e.g. Integer and Real.
Version
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LayerProtocol
Identifies the protocol this VL gives access to (IPV4, IPV6)
Contains Enumeration Literals:
- IPV4
- IPV6