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****** NOTE: This page is updated to R3 NS implementation in VFC project and also wish to be align with NS papyrus model. ********

Table of Contents

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

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

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

support: MANDATORY

_SDC	_SDC/UUI/VFC
_nsdName	_M	₁	_String	_{Provides the human readable name of} _{the NSD.}

nsdInvariantId

Identifier

1

_SDC	_SDC/UUI/VFC
_{nsdInvariantId}	_M	₁	_{_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

TBD

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

	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 Producer 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.

virtuaLinkDescVersion

support:

Version

Option

1

SDC	SDC/UUI/VFC
virtualLinkDescVersion	String	1

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

support: MANDATORY

Specifies the version of the VLD.

virtualLinkDf

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

Specifies

properties for instantiating a VL according to a specific flavour.

virtualLinkDescId

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
~~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~~

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.


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	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..*

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

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..*

Experimental

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

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 definitionSee VNFD Model
Attribute Name
Type
Mult.
Stereotypes
Description
NSVirtualLinkDesc
Association 0..* to 0..*
Preliminary
OpenModelAttribute
isInvariant: false
valueRange: no range constraint
support: MANDATORY
VNF binds to an NS Virtual Link Descriptor via VNF external CPs.
VNF extenrnal CPs are exposed to NSD via VNF

Pnfd

...

Refer refer to PNF resource IM proposal
Attribute Name
Type
Mult.
Stereotypes
Description
NSVirtualLinkDesc
Association 0..* to 0..*
Preliminary
OpenModelAttribute
isInvariant: false
valueRange: no range constraint
support: MANDATORY
PNF binds to an NS Virtual Link Descriptor via PNF external CPs.
PNF extenrnal CPs are exposed to NSD via PNF
...

DataType

NsLifeCycleManagementScript

The LifeCycleManagementScript information element specifies a script for the NS.

ConnectivityType

Mult.Access

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.

Includes an NS LCM script (e.g., written in a DSL) triggered to react to one of the events listed in the event attribute.

Attribute Name

Type

Multiplicity

Description

Applied Stereotypes

Description

layerProtocol

eventEnum

StringLayerProtocol

1

..*

RW

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

script

String

1

RW

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

VirtualLinkDf

...

	Identifies the protocol this VL gives access to (~~Ethernet, MPLS, ODU2,~~ IPV4, IPV6~~, Pseudo-Wire~~).	support: MANDATORY
flowPattern	String	0..1	Identifies the flow pattern of the connectivity (Line, Tree, Mesh).	support: MANDATORY

VirtualLinkDf

Mult.Access

Identifies this VirtualLinkDF datatype within a VLD.

NsQoS Specifies quality of service parameters applicable to a VL. Specifies

Attribute Name	Type
Multiplicity
Description	Applied Stereotypes
Description	flavourId	Identifier	1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Identifies a flavour within a VnfVirtualLinkDesc.	support: MANDATORY
qos	QoS	qos		0..1	RW	Preliminary OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	QoS of the VL.	support: MANDATORY
serviceAvaibilityLevel	Enum 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 [i.5]: • Level 1. • Level 2. • Level 3.

ConnectivityType

...

support: MANDATORY

QoS

Attribute Name	Type

Mult.

Multiplicity

Access

Description	Applied Stereotypes

Description

latency

layerProtocol

Number

Enum

LayerProtocol

1

RW

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Identifies the protocol this VL gives access to (~~Ethernet,~~ ~~MPLS, ODU2,~~ IPV4, IPV6, ~~Pseudo-Wire~~).

1	Maximum latency in ms.	support: MANDATORY
packetDelayVariation	Number	1	Maximum jitter in ms.	support: MANDATORY
packetLossRatio	Number

flowPattern

String

0..1

RW

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Identifies the flow pattern of the connectivity (Line, Tree, Mesh).

...

Maximum packet loss ratio. Cardinality is 0 if no packetLossRatio requirement exists.

support: MANDATORY

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

Parent Datatype: QoS

Specifies . Maximum latency in ms

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

Maximum jitter in ms.

Number

Maximum packet loss ratio. Cardinality is 0 if no packetLossRatio requirement exists.

Attribute Name

Type

Mult.

Access

Stereotypes

Description

priority

Integer

0..1

RW

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

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

latency

Number

1

RW

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

.

packetDelayVariation

Number

1

RW

support:

MANDATORY

packetLossRatio

0..1

RW

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
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

LayerProtocol

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

Contains Enumeration Literals:

IPV4
IPV6

Primitives

Number

This primitive type is a superset of the standard UML numbering primitives, e.g. Integer and Real.

Version

...

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Key

Class

...

NSD

Classes

NSD - Network Service Descriptor

NSVirtualLinkDesc - Network Service Virtual Link Descriptor

NsVirtualLink

Vnfd

Pnfd

DataType

NsLifeCycleManagementScript

ConnectivityType

VirtualLinkDf

VirtualLinkDf

ConnectivityType

QoS

Enumerations

ServiceAvailabilityLevel

LayerProtocol

Primitives

Number

Version