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This page shows the differences between the current clean version model with ETSI IFA011 v2.4.3 .and other proposed changes:

  • Verified against IFA011 v2.4.3. Also verified against v2.4.3 of the info model.
  • Added "Attribute Type" column to indicate whether the class attribute is an "attribute" or member end of an "association"Changed attribute Applied Stereotypes to OpenModelAttribute. Without this information it is difficult to create a class diagram. We might want to consider also for those "Attribute Types" that are associations to put whether there is shared or composite aggregation, or no aggregation at all. Not added to current proposal.
  • Changed attribute Applied Stereotypes to represent the actual stereotypes being applied, and not just a property of a stereotype.
  • Added class definitions and applied stereotypes
  • Proposal to define actual enums and not use the general term "Enum"
  • Proposal to remove incorrect usage of valueRange in OpenModelAttribute stereotype


Table of Contents
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Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type

flavorId

Identifier

1

Identifier of this DF within the VNFD.

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
Attribute
descriptionString1Human readable description of the DF.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Attribute
vduProfileVduProfile1..NDescribes additional instantiation data for the VDUs used in this flavor.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
virtualLinkProfileVirtualLinkProfile0..N

Defines the internal VLD along with additional data which is used in this DF.

NOTE 1: This allows for different VNF internal topologies between DFs.

NOTE 2: virtualLinkProfile needs to be provided for all VLs that the CPs of the VDUs in the VDU profiles connect to.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
instantiationLevelInstantiationLevel1..N

Describes the various levels of resources that can be used to instantiate the VNF using this flavour.

Examples: Small, Medium, Large.

If there is only one "instantiationLevel" entry, it shall be treated as the default instantiation level for this DF.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
affinityOrAntiAffinityGroupAffinityOrAntiAffinityGroup0..N

Specifies affinity or anti-affinity relationship applicable between the virtualisation containers (e.g. virtual machines) to be created using different VDUs or internal VLs to be created using different VnfVirtualLinkDesc(s) in the same affinity or anti-affinity group.

NOTE: In the present specification, including either VDU(s) or VnfVirtualLinkDesc(s) into the same affinity or anti-affinity group is supported. Extension to support including both VDU(s) and VnfVirtualLinkDesc(s) into the same affinity or anti-affinity group is left for future specification.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
scalingAspect

ScalingAspect

Note: This is not defined by ONAP. It is a Class

0..NThe scaling aspects supported by this DF of the VNF. scalingAspect shall be present if the VNF supports scaling.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
placementGroupPlacementGroup0..NDetermine where VNFC's (VDU's) are placed with respect to the VNF

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Experimental (note that experimental is a lifecycle state and not a value for "support")

Association
baseConfigGroupBaseConfigGroup0..1
  • BaseConfigGroup may set Access Control Lists (ACL's) and establish security groups and server groups.
  • BaseConfigGroup creates/establishs storage for the VM's (OpenStack Cinder).
  • BaseConfigGroup may establish internal networks such as OAM (VNF Mgmt) or MNS (Maintenance & Surveillance)  established.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Experimental

Association
deploymentGroupDeploymentGroup1..NDeploymentGroup provides the minimum viable VDU and associated VNFC configuration for a useable VNF.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Experimental

Association

IFA011 also defines:

defaultInstantiationLevelId

supportedOperation

vnfLcmOperationsConfiguration

vnfIndicator

initialDelta







...

Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type

vduId

Identifier (Reference to Vdu)

Model has type Vdu as this is an association end

1

Uniquely identifies a VDU.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

PassedByReference

Association
numberOf InstancesInteger1Number of instances of VNFC based on this VDU to deploy for an instantiation level or for a scaling delta.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Experimental

Association

...

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

latency

Number

1

Maximum latency in ms.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
packetDelayVariationNumber1Maximum jitter in ms.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
packetLossRatioNumber0..1Maximum packet loss ratio. Cardinality is 0 if no packetLossRatio requirement exists.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

...

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

type

Enum

Which one?

1

Specifies whether the rule is an affinity rule or an anti-affinity rule.

support: MANDATORY

valueRange: "Affinity", "Anti-Affinity"

scope

Enum

Which one?

1Specifies the scope of the rule.

support: MANDATORY

valueRange: "NFVI-PoP", "Zone", "ZoneGroup", "NFVI-node"

...

Note: The model defines the attributes of this class differently.

"Attribute

Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type

groupId

Identifier

1

Identifies an affinity or anti-affinity group to which the affinity or anti-affinity rule applies.

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
Attribute
type

Enum

Which one?

1Specifies whether the rule is an affinity rule or an anti-affinity rule.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "Affinity", "Anti-Affinity"

Note: Incorrect usage of value range.

Attribute
scope

Enum

Which one?

1Specifies the scope of the rule.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "NFVI-PoP", "Zone", "ZoneGroup", "NFVI-node

Note: Incorrect usage of value range.

...

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

addressType

Identifier

Both IFA011 and model have this as an enum called "AddressType"

1

Describes the type of the address to be assigned to the CP instantiated from the parent CPD.


Value:


  • MAC address.
  • IP address.

etc.

The content type shall be aligned with the address type supported by the layerProtocol attribute of the parent CPD.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
l2AddressData

L2AddressData

0..1

Provides the information on the MAC addresses to be assigned to the CP(s) instantiated from the parent CPD.

Shall be present when the addressType is MAC address.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Experimental

l3AddressDataL3AddressData0..1

Provides the information on the IP addresses to be assigned to the CP instantiated from the parent CPD.

Shall be present when the addressType is IP address.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

...

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

iPAddressAssignment

Boolean

1

Specify if the address assignment is the responsibility of management and orchestration function or not.

If it is set to True, it is the management and orchestration function responsibility.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
floatingIpActivatedBoolean1Specify if the floating IP scheme is activated on the CP or not.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
iPAddressType

Enum

Which one?

0..1

Define address type.

Values:

  • IPv4 address.
  • IPv6 address

NOTE: The address type should be aligned with the address type supported by the layerProtocol attribute of the parent Cpd.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "IPv4", "IPv6"

Note: Incorrect usage of value range

numberOfIpAddressInteger0..1Minimum number of IP addresses to be assigned based on this L3AddressData information element.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY


Datatype: CpProtocolData

...

A CpProtocolData information element describes and associates the protocol layer that a CP uses together with other protocol and connection point information.

Applied Stereotypes:

Preliminary


Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

associatedLayerProtocol

Enum

Model has this as LayerProtocol enum

1

One of the values of the attribute layerProtocol of the Cpd IE.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
addressDataAddressData

0..N

Model has 1

Provides information on the addresses to be assigned to the CP(s) instantiated from the CPD.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: ConnectivityType

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

Applied Stereotypes:

Preliminary

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

layerProtocol

Enum

Model has enum LayerProtocol

1

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

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
flowPatternString0..1Identifies the flow pattern of the connectivity (Line, Tree, Mesh).

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: VirtualCpuPinningData

...

virtualCpuPinningRule
Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

virtualCpuPinningPolicy

Enum

Model has enum CpuPinningPolicy

0..1

The policy can take values of "static" or "dynamic". In case of "static" the virtual CPU cores are requested to be allocated to logical CPU cores according to the rules defined in virtualCpuPinningRules. In case of "dynamic" the allocation of virtual CPU cores to logical CPU cores is decided by the VIM. (e.g.: SMT (Simultaneous Multi-Threading) requirements).

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "static", "dynamic"

Incorrect use of valueRange

virtualCpuPinningRule

Not specified

Editor's note: need to be specified

0..1A list of rules that should be considered during the allocation of the virtual CPUs to logical CPUs in case of "static" virtualCpuPinningPolicy.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: RequestedAdditionalCapabilityData

...

Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

requestedAdditionalCapabilityName

String

1

Identifies a requested additional capability for the VDU.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: For acceleration capabilities, reference to ETSI GS NFV-IFA 002.

Incorrect use of valueRange

supportMandatory

Boolean

1Indicates whether the requested additional capability is mandatory for successful operation.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
minRequestedAdditionalCapabilityVersionString0..1Identifies the minimum version of the requested additional capability.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
preferredRequestedAdditionalCapabilityVersionString0..1Identifies the preferred version of the requested additional capability.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
targetPerformanceParametersKeyValuePair1..NIdentifies specific attributes, dependent on the requested additional capability type.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: VnfConfigurableProperties

Description:

This datatype defines the configurable properties of a VNF (e.g. related to auto scaling and auto healing). For a VNF instance, the value of these properties can be modified by the VNFM.

Applied Stereotypes:

  • Preliminary
Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

isAutoscaleEnabled

Boolean

0..1

It permits to enable (TRUE)/disable (FALSE) the auto-scaling functionality.

NOTE: A cardinality of "0" indicates that configuring this present VNF property is not supported.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
isAutohealEnabledBoolean0..1

It permits to enable (TRUE)/disable (FALSE) the auto-healing functionality.

NOTE: A cardinality of "0" indicates that configuring this present VNF property is not supported.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
additionalConfigurablePropertyString0..NIt provides VNF specific configurable properties that can be modified using the ModifyVnfInfo operation.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: VnfcConfigurableProperties

This datatype defines the configurable properties of a VNFC. For a VNFC instance, the value of these properties can be modified through the VNFM.

Applied Stereotypes:

  • Preliminary
Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

additionalVnfcConfigurableProperty

String

0..N

It provides VNFC configurable properties that can be modified using the ModifyVnfInfo operation.

NOTE: A cardinality of "0" indicates that configuring this present VNF property is not supported.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Datatype: LifecycleManagementScript

Note: In the model this is called VnfLifecycleManagementScript to distinguish it from NsLifecycleManagementScript

Also, in which class do you reference this datatype?

Defines the information elements related to the lifecycle management script for the VNF.

Applied Stereotypes:

  • Preliminary


Attribute NameTypeMultiplicityDescriptionApplied Stereotypes

event

Enum

In the model this is LcmEventType

0..N

Describes VNF lifecycle event(s) or an external stimulus detected on a VNFM reference point.

NOTE: At least one of these two attributes shall be included.

OpenModelAttribute

  • isInvariant: false
  • support:  CONDITIONAL_MANDATORY
  • condition: At least one of the 2 attributes event or lcmTransitionEvent shall be included

valueRange: for lifecycle events, include: "EVENT_START_INSTANTIATION", "EVENT_END_INSTANTIATION", "EVENT_START_SCALING", "EVENT_END_SCALING", "EVENT_START_SCALING_TO_LEVEL", "EVENT_END_SCALING_TO_LEVEL", "EVENT_START_HEALING", "EVENT_END_HEALING", "EVENT_START_TERMINATION", "EVENT_END_TERMINATION", "EVENT_START_VNF_FLAVOR_CHANGE", "EVENT_END_VNF_FLAVOR_CHANGE", "EVENT_START_VNF_OPERATION_CHANGE", "EVENT_END_VNF_OPERATION_CHANGE", "EVENT_START_VNF_EXT_CONN_CHANGE", "EVENT_END_VNF_EXT_CONN_CHANGE", "EVENT_START_VNFINFO_MODIFICATION", "EVENT_END_VNFINFO_MODIFICATION"; for external stimulus, include: receipt of request message of instantiation, scaling, healing, termination, change of VNF flavour, change of the operation state of the VNF, change of external VNF connectivity, modification of VNF information or the receipt of a notification regarding the change of a VNF indicator value.

Incorrect usage of valueRange

lcmTransitionEventString0..N

Describes the transition VNF lifecycle event(s) that cannot be mapped to any of the enumerated values defined for the event attribute.

NOTE: At least one of these two attributes shall be included.

OpenModelAttribute

  • isInvariant: false
  • support:  CONDITIONAL_MANDATORY
  • condition: At least one of the 2 attributes event or lcmTransitionEvent shall be included
scriptString1Information to locate a VNF LCM script (e.g. written in a DSL as specified in requirement VNF_PACK.LCM.001) triggered to react to one of the events listed in the event attribute.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
scriptDslString1Defines the domain specific language (i.e. the type) of script that is provided. Types of scripts could include bash, python, etc.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
scriptInputKeyValuePair0..N

Array of KVP requirements with the key as the parameter name and the value as the parameter that need to be passed as an input to the script.

NOTE: The scriptInput values are passed to the scripts in addition to the parameters received in the operation invocation request or indicator value change.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Class: VnfIndicator

Editor's note: may related to DCAE/VES projects


The VnfIndicator class defines the indicator the VNF supports.


Applied Stereotypes:


  • OpenModelClass


-             support:  MANDATORY


  • Preliminary


Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type
idIdentifier1Unique identifier.

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
Attribute
nameString0..1The human readable name of the VnfIndicator.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Attribute
indicatorValueString1..NDefines the allowed values or value ranges of this indicator.support: MANDATORY

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Attribute
source

Enum

Model has VnfIndicatorType

1Describe the source of the indicator. This tells the consumer where to send the subscription request.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "VNF", "EM", "Both"

Incorrect usage of valueRange

Attribute

Datatype: MonitoringParameter

Editor's note: may related to DCAE/VES projects


This information element specifies the virtualised resource related performance metric to be tracked by the VNFM, e.g. for auto-scaling purposes. The VNFM collects the values of performance metrics identified by this information element from the VIM(s) using one or more locally initiated PM Jobs. These values can be used as inputs to auto-scaling rules


Applied Stereotypes:


  • Preliminary


Attribute NameTypeMultiplicityDescriptionApplied Stereotypes
idIdentifier1Unique identifier of the monitoring parameter.

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
nameString0..1Human readable name of the monitoring parameter.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
performanceMetricString1Identifies the virtualised resource performance metric.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
collectionPeriod

Not specified

Editor's note: need to be specified

0..1

An attribute that describes the recommended periodicity at which to collect the performance information.

VNFM determines if this parameter is considered.

The vendor may provide this information as a guidance for creating PmJobs if needed.

NOTE: The MANO or NFVI may not support the recommended collectionPeriod based on

their functionalities, and can reject the requests based on the recommended collectionPeriod in this case.support: MANDATORY

...

their functionalities, and can reject the requests based on the recommended collectionPeriod in this case.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

Class: VnfdElementGroup

A VNFD Element Group is a mechanism for associating elements of a VNFD (Vdus and VnfVirtualLinkDesc(s)) for a certain purpose, for example, scaling aspects.

A given element can belong to multiple groups.

Applied Stereotypes:

  • OpenModelClass

          support:  MANDATORY

  • Preliminary 
Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type
vnfdElementGroupIdIdentifier1Unique identifier of this group in the VNFD.

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
Attribute
descriptionString1Human readable description of the group.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Attribute
vdu

Identifier (Reference to Vdu)

Model has type Vdu as this is an association end

0..NReferences to Vdus that are part of this group.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association
virtualLinkDesc

Identifier (Reference to VnfVirtualLinkDesc) 

Model has type VnfVirtualLinkDesc as this is an association end

0..NReferences to VnfVirtualLinkDesc that are part of this group.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association

Class: PlacementGroup (Experimental)

Attribute NameTypeMultiplicityDescriptionApplied StereotypesAttribute Type
elementGroupIdIdentifier1Unique identifier of this group in the VNFD..

OpenModelAttribute

  • isInvariant: true
  • support:  MANDATORY
Attribute
placementStrategy

Enum

Define an actual enum type

1Determine where VNFC's (VDU's) are placed with respect to the VNF.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "co-location", "isolation", "exclusively"

NOTE:

  • Co-location - members of the group share the same physical host or rack.
  • isolation - members of the group do not share the same physical host or rack.
  • Exclusivity - members have sole use of a given physical host or rack (not shared with any vnfcs outside the group).

Incorrect use of valueRange

Attribute
vnfcMembers

Not specified

(should it be Identifier (Reference to Vdu)?)

Good question. If it is the end of an association is should be type Vdu?

0..NReferences to Vdus that are part of this group.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
Association?
strategyScope

Enum

Define an actual enum

1indicate if the strategy is applied at the host or rack level

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY

valueRange: "host", "rack"

Incorrect usage of valueRange

Attribute

Class: BaseConfigGroup (Experimental)

...

Datatype: VnfInfoModifiableAttributes

This datatype defines the VNF-specific extension and metadata attributes of the VnfInfo that are writeable via the ModifyVnfInfo operation.

Applied Stereotypes:

  • Preliminary
Attribute NameTypeMultiplicityDescriptionApplied Stereotypes
extension

Not specified

Editor's note: need to be specified

0..N"Extension" attributes of VnfInfo that are writeable.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY
metadata

Not specified

Editor's note: need to be specified

0..N"Metadata" attributes of VnfInfo that are writeable.

OpenModelAttribute

  • isInvariant: false
  • support:  MANDATORY