Table of Contents

NSD

derived from ServiceComponentDescriptor

nestedNS, vnffgd, and sapd will be considered in the R4+ in VFC project.

****** NOTE: This page is updated to R3 NS implementation in VFC project. ********

Table of Contents

Class Diagram

Image Removed

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

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 an instance of the NSD

designer

String

1

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

R2+ Attributes	Required	Cardinality	Content	Description	Producer	Consumer	ETSI IFA014
_{nsdIdentifier}	_M	₁	_String	_{Identifier of this NSD information} _{element. It Globally uniquely identifies} _{an instance of the NSD.}	_SDC	_SDC/UUI/VFC	_{nsdIdentifier}
_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	_designer
_version	_M	₁	_String	_{Identifies the version of the NSD.}

nsdName

String

1

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

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

nsdInvariantId

Identifier

1

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

Preliminary

OpenModelAttribute

isInvariant: false

valueRange: no range constraint

support: MANDATORY

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

autoScalingRule

_SDC	_SDC/UUI/VFC	_{nsdInvariantId}
~~nestedNsdId~~	M

Rule

~~0..~~

*

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

0..*

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

N

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

~~String~~	~~References the NSD of a constituent nested NS.~~	~~SDC~~	~~SDC/UUI/VFC~~	~~nestedNsdId~~
vnfdid	M	0..N	String

References the VNFD of a constituent VNF.

_

SDC	SDC/UUI/VFC	vnfdid
pnfdId

Pnfd

M

0..

*

Experimental

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

PassedByReference

N

String

References the PNFD of a constituent PNF.

NSVirtualLinkDesc - Network Service Virtual Link Descriptor

...

SDC	SDC/UUI/VFC

...

Parent class: VirtualLinkDesc

Applied stereotypes:

Preliminary
OpenModelClass
- support: MANDATORY

pnfdId
virtualLinkDesc	M	0..N	~~String~~ NsVirtualLink	Provides the constituent VLDs.	SDC	SDC/UUI/VFC	virtualLinkDesc
~~sapd~~	M

Attribute Name

Type

Mult.

Stereotypes

Description

vitualLinkDescProvider

String

~~0..~~

1

N

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Defines the organization generating the VLD.

virtuaLinkDescVersion

Version

1

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Specifies the version of the VLD.

virtualLinkDf

VirtualLinkDf

1

Preliminary

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Specifies properties for instantiating a VL according to a specific flavour.

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.

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).

VnfdAssociation0..* 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

Pnfd

Association0..* 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

...

See VNFD Model

...

Attribute Name

...

Type

...

Mult.

...

Stereotypes

...

Description

...

NSVirtualLinkDesc

...

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 - PNF Descriptor

Refer to PNF resource IM proposal

...

Attribute Name

...

Type

...

Mult.

...

Stereotypes

...

Description

...

NSVirtualLinkDesc

...

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

Datatypes

NsLifeCycleManagementScript

The LifeCycleManagementScript information element specifies a script for the NS.

...

Attribute Name

...

Type

...

Mult.

...

Access

...

Stereotypes

...

Description

...

event

...

String

...

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.

~~Sapd~~	~~Provides the descriptor of a service access point of the network service.~~	~~SDC~~	~~SDC/UUI/VFC~~	~~sapd~~
~~vnffgd~~	M	~~0..N~~	~~Vnffgd~~	~~Provides the descriptors of the applicable forwarding graphs.~~	~~SDC~~	~~SDC/UUI/VFC~~	~~vnffgd~~
monitoredInfo	M	0..N	MonitoredData	Identifies either a virtualised resource-related performance metric or a VNF Indicator.	SDC	SDC/UUI/VFC	monitoredInfo
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	autoScalingRule
lifeCycleManagementScript	M	0..N	LifeCycleManagementScript	Provides a life cycle management script written in a Domain Specific Language (DSL).	SDC	SDC/UUI/VFC	lifeCycleManagementScript
~~nsDf~~	M	~~1..N~~	~~NsDf~~	~~Identifies a DF within the scope of an NSD.~~	~~SDC~~	~~SDC/UUI/VFC~~	~~nsDf~~
~~security~~	M	1	~~SecurityParameters~~	~~Provides a signature to prevent tampering.~~	~~SDC~~	~~SDC/UUI/VFC~~	~~security~~

NsVirtualLink

Attribute Name	Type	Multiplicity	Description	Applied Stereotypes	Producer	Consumer	ETSI IFA014
virtualLinkDescId	Identifier	1	Identifier of the NsVirtualLinkDesc information element. It uniquely identifies a VLD.	support: MANDATORY	SDC	SDC/UUI/VFC	virtualLinkDescId
vitualLinkDescProvider	String	0..1	Defines the organization generating the VLD.	support: Option	SDC	SDC/UUI/VFC	vitualLinkDescProvider
virtualLinkDescVersion	String	1	Specifies the version of the VLD.	support: MANDATORY	SDC	SDC/UUI/VFC	virtualLinkDescVersion
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	connectivityType
virtualLinkDf	VirtualLinkDf	~~1..N~~ 1	The VirtualLinkDf information element

...

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

...

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

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: • Level 1 • Level 2 • Level 3

ConnectivityType

The ConnectivityType datatype specifies the protocol exposed by a VL and the flow pattern supported by the VL.

support: MANDATORY	SDC	SDC/UUI/VFC	virtualLinkDf
~~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~~	~~testAccess~~
description	String	0..1	Provides human-readable information on the purpose of the VL (e.g. control plane traffic).	support: MANDATORY	SDC	SDC/UUI/VFC	description
~~security~~	~~SecurityParameters~~	~~0..1~~	~~Provides a signature to prevent tampering.~~	~~support: MANDATORY~~	~~SDC~~	~~SDC/UUI/VFC~~	~~security~~

ConnectivityType

Attribute Name	Type	Multiplicity	Description	Applied Stereotypes
layerProtocol	Enum	1	Identifies

Attribute Name

Type

Mult.

Access

Stereotypes

Description

layerProtocol

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).	support: MANDATORY
flowPattern	String	0..1

RW

OpenModelAttribute

isInvariant: false
valueRange: no range constraint
support: MANDATORY

Identifies

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

...

support: MANDATORY

VirtualLinkDf

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

...

Mult.Access
Specifies the priority level in case of congestion on the underlying physical links.
Attribute Name
Type
Multiplicity
Description
Applied Stereotypes
Description
flavourId
priority
Identifier
Integer
0..1
RW
Preliminary
OpenModelAttribute
isInvariant: false
valueRange: no range constraint
support: MANDATORY
1
Identifies a flavour within a VnfVirtualLinkDesc.
support: MANDATORY
qos QoS 0..1 QoS of the VL. support: MANDATORY
serviceAvaibilityLevel Enum 0..1
Specifies one of the three levels defined in ETSI
GS NFV-REL 001 [i.5]:
• Level 1.
• Level 2.
• Level 3.
support: MANDATORY

QoS

Maximum latency in ms.

Maximum jitter in ms.

Maximum

Attribute Name

Type

Multiplicity

Description

Applied Stereotypes

latency

Number

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.

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

support: MANDATORY
priority	Integer	0..1	Specifies the priority level in case of congestion on the underlying physical links.	support: MANDATORY

Vnfd

refer to resource definition

VnfExtCp

refer to resource definition

Pnfd

refer to PNF resource IM proposalThis primitive type defines the version of an element.

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Versions Compared

Old Version 31

New Version 32

Key

NSD

Class Diagram

Classes

NSD - Network Service Descriptor

NSVirtualLinkDesc - Network Service Virtual Link Descriptor

Pnfd - PNF Descriptor

Datatypes

NsLifeCycleManagementScript

NsVirtualLink

VirtualLinkDf

ConnectivityType

ConnectivityType

VirtualLinkDf

QoS

Enumerations

ServiceAvailabilityLevel

LayerProtocol

Primitives

Number

Version

Vnfd

VnfExtCp

Pnfd

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Versions Compared

Old Version 31

New Version 32

Key

NSD

Class Diagram

Classes

NSD - Network Service Descriptor

NSVirtualLinkDesc - Network Service Virtual Link Descriptor

Pnfd - PNF Descriptor

Datatypes

NsLifeCycleManagementScript

NsVirtualLink

VirtualLinkDf

ConnectivityType

ConnectivityType

VirtualLinkDf

QoS

Enumerations

ServiceAvailabilityLevel

LayerProtocol

Primitives

Number

Version

Vnfd

VnfExtCp

Pnfd