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Class

...

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

Identifier of this NSD class. It globally uniquely identifies

R2+ Attributes	Required	Cardinality	Content	Description	Producer	Consumer
_{nsdIdentifier}	_M	₁	_Identifier	_{Identifier of this NSD information} _{element. It Globally uniquely identifies}

_{an instance of the NSD.}

designer

_SDC	_SDC/UUI/VFC
_designer	_M

String

₁

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

_String

_{Identifies the designer of the NSD.}

_SDC	_SDC/UUI/VFC
_version	_M

version

Version

₁

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Version

_{Identifies the version of the NSD.}

nsdName

_SDC	_SDC/UUI/VFC
_nsdName	_M

String

₁

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

_String

_{Provides the human readable name of}
_{the NSD.}

nsdInvariantId

_SDC	_SDC/UUI/VFC
_{nsdInvariantId}	_M

Identifier

₁

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

_{_Identifier}

_{Identifies an NSD in a version}
_{independent manner. This attribute is}
_{invariant across versions of NSD.}

autoScalingRule

_SDC	_SDC/UUI/VFC
~~nestedNsdId~~	M

Rule

~~0..~~

*

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

N	~~String~~	~~References the NSD of a constituent nested NS.~~	~~SDC~~	~~SDC/UUI/VFC~~
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	~~String~~ NsVirtualLink	Provides the constituent VLDs.	SDC	SDC/UUI/VFC
~~sapd~~	M	~~0..N~~	~~Sapd~~	~~Provides the descriptor of a service access point of the network service.~~	~~SDC~~	~~SDC/UUI/VFC~~
~~vnffgd~~	M	~~0..N~~	~~Vnffgd~~	~~Provides the descriptors of the applicable forwarding graphs.~~	~~SDC~~	~~SDC/UUI/VFC~~
monitoredInfo	M	0..N	~~MonitoredData~~ TBD

monitoredInfo

MonitoredData

0..*

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

support: MANDATORY

Identifies either a virtualised resource-related performance metric or a VNF Indicator.

lifeCycleManagementScript

NsLifeCycleManagementScript

0..*

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

isInvariant: false

valueRange: no range constraint

support: MANDATORY

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 Product is SDC and the Consumer is SDC/UUI/VFC.

Parent class: VirtualLinkDesc

Applied stereotypes:

Preliminary
OpenModelClass
- support: MANDATORY

SDC	SDC/UUI/VFC
~~nsDf~~	M	~~1..N~~	~~NsDf~~	~~Identifies a DF within the scope of an NSD.~~	~~SDC~~	~~SDC/UUI/VFC~~
~~security~~	M	1	~~SecurityParameters~~	~~Provides a signature to prevent tampering.~~	~~SDC~~	~~SDC/UUI/VFC~~

NsVirtualLink

Attribute Name

Type

Mult.

Stereotypes

Description

Attribute Name	Type	Multiplicity	Description	Applied Stereotypes	Producer	Consumer
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

virtuaLinkDescVersion

Version

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	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	~~1..N~~ 1	The VirtualLinkDf information element specifies

virtualLinkDf

VirtualLinkDf

1..*

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Specifies

properties for instantiating a VL according to a specific flavour.

support: MANDATORY

virtualLinkDescId

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.

connectivityType

ConnectivityType

1

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Specifies the protocol exposed by a VL and the flow pattern supported by the VL.

SDC	SDC/UUI/VFC
~~testAccess~~	~~String~~	~~0..N~~	~~Specifies test access facilities expected on the VL (e.g. none, passive monitoring, or active (intrusive) loopbacks at endpoints).~~	~~support: MANDATORY~~	~~SDC~~	~~SDC/UUI/VFC~~
description	String	0..1

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

support: MANDATORY

Provides human-readable information on the purpose of the VL (e.g. control plane traffic).

support: MANDATORY

...

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.

...

Attribute Name

...

Type

...

Mult.

...

Access

...

Stereotypes

...

Description

...

vnfIndicatorInfo

...

VnfIndicatorData

...

0..1

...

RW

...

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

...

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

SDC	SDC/UUI/VFC
~~security~~	~~SecurityParameters~~	~~0..1~~	~~Provides a signature to prevent tampering.~~	~~support: MANDATORY~~	~~SDC~~	~~SDC/UUI/VFC~~
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.

Access

Stereotypes

Description

event

NSVirtualLinkDesc

String

Association

0..* to 0

1

..*

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

Stereotypes

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

Specifies one of the three levels defined in ETSI GS NFV-REL 001: • Level 1 • Level 2 • Level 3

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

Mult.Access Identifies

Attribute Name	Type
Multiplicity
Description	Applied Stereotypes
Description layerProtocol	layerProtocolEnum LayerProtocol	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Identifies Identifies the protocol this VL gives access to (~~Ethernet, MPLS, ODU2,~~ IPV4, IPV6~~, Pseudo-Wire~~).	support: MANDATORY
flowPattern	String	0..1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Identifies the flow pattern of the connectivity (Line, Tree, Mesh).

SecurityParameters

...

support: MANDATORY

VirtualLinkDf

Mult.Access

Provides the signature of the signed part of the descriptor.

Identifies the algorithm used to compute the signature.

certificate

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

Attribute Name	Type
Multiplicity
Description	Applied Stereotypes
Description flavourId	signature Identifier	String	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Identifies a flavour within a VnfVirtualLinkDesc.	support: MANDATORY
qos	QoS	0..1	QoS of the VL.	support: MANDATORY
serviceAvaibilityLevel	Enum ServiceAvailabilityLevel	algorithm	String	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY		0..1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY

...

Specifies one of the three levels defined in ETSI
GS NFV-REL 001 [i.5]:
• Level 1.
• Level 2.
• Level 3.

support: MANDATORY

The NsQoS datatype specifies quality of service parameters applicable to a NS VL.

...

QoS

Mult.Access

Specifies the priority level in case of congestion on the underlying physical links.

Maximum latency in ms.

Maximum jitter in ms. Maximum

Attribute Name	Type
Multiplicity
Description	Applied Stereotypes
Description latency	priorityNumber	Integer	0..1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	1	Maximum latency in ms.	support: MANDATORY
packetDelayVariation	Number	1	Maximum jitter in ms.	support: MANDATORY	latency	Number	1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	packetDelayVariation	Number	1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY
packetLossRatio	Number	0..1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	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

...

LayerProtocol

Identifies the protocol this VL gives access to (IPV4, IPV6)

Contains Enumeration Literals:

IPV4
IPV6

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Versions Compared

Old Version 5

New Version Current

Key

Class

...

NSD

Classes

NSD - Network Service Descriptor

NSVirtualLinkDesc - Network Service Virtual Link Descriptor

NsVirtualLink

VnfExtCpd - VNF External CP Descriptor

Pnfd - PNF Descriptor

Datatypes

MonitoredData

Vnfd

NsLifeCycleManagementScript

VirtualLinkDf

Pnfd

DataType

ConnectivityType

SecurityParameters

VirtualLinkDf

QoS

Enumerations

ServiceAvailabilityLevel

Primitives

Number

Version

LayerProtocol