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steps that can be applied w.r.t. this aspect. The
value of this attribute corresponds to the number of
scaling steps can be applied to this aspect when
scaling it from the minimum scale level (i.e. 0) to the
maximum scale level defined by this attribute.";
reference
"GS NFV IFA011: Section 7.1.10.2 ScalingAspect
information element";
}
container aspect-delta-details {
list deltas {
key "id";
min-elements 1;
leaf id {
type string;
description
"Identifier of this scaling delta.";
reference
"GS NFV IFA011: Section 7.1.10.4 ScalingDelta
information element";
type leafref {
path "../../../../../../vdu/id";
}
"GS NFV IFA011: Section 7.1.8.9 VduLevel
information element";
}
leaf number-of-instances {
type uint32 {
range "0..max";
"Number of instances of VNFC based on this VDU to
deploy for an instantiation level or for a
scaling delta. Shall be zero or greater.";
"GS NFV IFA011: Section 7.1.8.9 VduLevel
description
"The number of VNFC instances based on particular
VDUs to be created or removed.";
reference
"GS NFV IFA011: Section 7.1.10.4 ScalingDelta
information element";
}
list virtual-link-bit-rate-delta {
key "id";
leaf id {
type string;
description
"Uniquely identifies a VnfVirtualLinkDesc.";
reference
"GS NFV IFA011: Section 7.1.10.5
VirtualLinkBitRateLevel information element";
}
container bit-rate-requirements {
leaf root {
type uint32;
units bits/sec;
mandatory true;
"Throughput requirement of the link (e.g.
bitrate of E-Line, root bitrate of E-Tree,
aggregate capacity of E-LAN).";
"GS NFV IFA011: Section 7.1.8.6
LinkBitrateRequirements information element";
leaf leaf {
type uint32;
units bits/sec;
"Throughput requirement of leaf connections to
the link when applicable to the connectivity
type (e.g. for E-Tree and E-LAN branches).";
"GS NFV IFA011: Section 7.1.8.6
LinkBitrateRequirements information element";
"Bitrate requirements for an instantiation level
or bitrate delta for a scaling step.";
"GS NFV IFA011: Section 7.1.10.5
VirtualLinkBitRateLevel information element";
"The bitrate to be added or removed to virtual links
created from particular virtual link descriptors.";
"GS NFV IFA011: Section 7.1.10.4 ScalingDelta
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list vip-cp-delta {
key "id";
description
"Number of VIP CP instances based on a particular
VipCpd to be created or removed.";
reference
"GS NFV IFA011: Section 7.1.10.4, ScalingDelta information
element.";
leaf id {
type leafref {
path "../../../../../../vip-cpd/id";
}
description
"Uniquely references a VIP CPD.";
reference
"GS NFV IFA011: Section 7.1.10.6, VipCpLevel information
element.";
}
leaf number-of-instances {
type uint16;
description
"Number of VIP CP instances based on the referenced
VipCpd to deploy for an instantiation level or for
a scaling delta. Shall be zero or greater.";
reference
"GS NFV IFA011: Section 7.1.10.6, VipCpLevel information
element.";
}
}
description
"Declares different scaling deltas, each of which is
applied for one or more scaling steps of this
aspect.";
reference
"GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails
information element";
}
leaf step-deltas {
type leafref {
path "../deltas/id";
"Identifiers of the individual scaling deltas to be
applied for the subsequent scaling steps of this
aspect. The first entry in the array shall correspond
to the first scaling step (between scale levels 0 to
1) and the last entry in the array shall correspond
to the last scaling step (between maxScaleLevel-1
and maxScaleLevel).
Each referenced scaling delta shall be declared in
the 'deltas' attribute.";
"GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails
description
"A specification of the deltas in terms of number of
instances of VNFCs and virtual link bit rates that
correspond to the scaling steps of this aspect. A
cardinality of zero indicates that this mapping has to
be specified in a lifecycle management script or be
otherwise known to the VNFM. The information in this
attribute, if provided, shall be consistent with the
information provided in the 'InstantiationLevel'
information element. If this attribute is provided, it
shall be provided for all scaling aspects.";
reference
"GS NFV IFA011: Section 7.1.10.2 ScalingAspect
information element";
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list dependencies {
key "id";
description
"Specifies the order in which instances of the VNFCs
have to be created.";
reference
"GS NFV IFA011: Section 7.1.8.2 VnfDf information element";
leaf id {
type string;
}
leaf primary-id {
type leafref {
path "../../vdu-profile/id";
}
description
"References a VduProfile for describing dependencies
between VNFCs in terms of primary entities.";
reference
"GS NFV IFA011: Section 7.1.8.19 Dependencies
information element";
}
leaf secondary-id {
type leafref {
path "../../vdu-profile/id";
}
description
"References a VduProfile for describing dependencies
between VNFCs in terms of secondary entities.";
reference
"GS NFV IFA011: Section 7.1.8.19 Dependencies
information element";
}
}
}
container configurable-properties {
description
"Describes the configurable properties of the VNF
(e.g. related to auto scaling and auto healing).";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf is-auto-scalable-enabled {
type boolean;
"It permits to enable (TRUE) / disable (FALSE) the
auto-scaling functionality.";
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
leaf is-auto-heal-enabled {
type boolean;
description
"It permits to enable (TRUE) / disable (FALSE) the
auto-healing functionality.";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
container vnfm-interface-info {
leaf interface-name {
type string {
pattern 'vnf-[lcm|pm|fm]';
}
description
"Identifies an interface produced by the VNFM.";
}
container details {
container uri-components {
leaf scheme {
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description
"Corresponds to the scheme component of a URI, as
per IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
container authority {
leaf userinfo {
type string;
description
"Corresponds to the userinfo field of the authority
component of a URI, as per IETF RFC 3986.
For HTTP and HTTPS URIs, the provisions in
sections 2.7.1 and 2.7.2 of IETF RFC 7230 apply,
respectively.";
reference
"RFC 3986: URI Generic Syntax.";
}
leaf host {
description
"Corresponds to the host field of the authority
component of a URI, as per IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
leaf port {
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description
"Corresponds to the port field of the authority
component of a URI, as per IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
description
"Corresponds to the authority component of a URI,
as per IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
leaf path {
type string;
description
"Corresponds to the path component of a URI, as per
IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
leaf query {
type string;
description
"Corresponds to the query component of a URI, as per
IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
leaf fragment {
type string;
description
"Corresponds to the fragment component of a URI, as per
IETF RFC 3986.";
reference
"RFC 3986: URI Generic Syntax.";
}
description
"Provides components to build a Uniform Resource
Identifier (URI) where to access the interface end
point.";
}
leaf-list interface-specific-data {
type string;
description
"Provides additional details that are specific to the
type of interface considered.";
}
description
"Provide additional data to access the interface
endpoint (e.g. API URI prefix).";
}
leaf credentials {
type string;
description
"Provides credential enabling access to the interface.";
}
description
"Contains information enabling access to the NFV-MANO
interfaces produced by the VNFM (e.g. URIs and
credentials).";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
container vnfm-oauth-server-info {
description
"Contains information to enable discovery of the
authorization server protecting access to
VNFM interfaces.";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
container vnf-oauth-server-info {
description
"Contains information to enable discovery of the
authorization server to validate the access tokens
provided by the VNFM when the VNFM accesses the VNF
interfaces, if that functionality (token introspection) is
supported by the authorization server.";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
list additional-configurable-property {
key "key";
leaf key {
type string;
description
"It provides VNF specific configurable properties that can
be modified using the ModifyVnfConfiguration operation.";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
container modifiable-attributes {
description
"Describes the modifiable attributes of the VNF.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf-list extension {
type string;
"Additional VNF-specific attributes of VnfInfo that
affect the lifecycle management of a VNF instance and
that are writeable.
For each VNF instance, these attributes are stored
persistently by the VNFM and can be queried and
modified through the VNFM.
These attributes are intended to be consumed by the
VNFM or by the lifecycle management scripts during the
execution of VNF lifecycle management operations.
Modifying these values has no direct effect on the VNF
instance; however, modified values can be considered
during subsequent VNF lifecycle management operations,
which means that the modified values can indirectly
affect the configuration of the VNF instance.";
"GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes
information element";
}
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leaf-list metadata {
type string;
description
"Additional VNF-specific attributes of VnfInfo that are
writeable and that provide metadata describing the VNF
instance.
For each VNF instance, these attributes are stored
persistently by the VNFM and can be queried and modified
through the VNFM.
These attributes are intended to provide information to
functional blocks external to the VNFM and will not be
used by the VNFM or the VNF lifecycle management
scripts when executing lifecycle management operations.
Modifying these attributes has no effect on the VNF
instance. It only affects the attribute values stored by
the VNFM.";
reference
"GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes
information element";
}
}
list lifecycle-management-script {
key "id";
description
"Includes a list of events and corresponding management
scripts performed for the VNF.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf id {
type string;
description
"A unique string that identfies the script in question.";
}
type union {
type internal-lifecycle-management-script-event;
type external-lifecycle-management-script-event;
}
description
"Describes VNF lifecycle event(s) or an external stimulus
detected on a VNFM reference point.
If the event is of type
internal-lifecycle-management-script-event, then depending
on whether the event is of type start-* or end-*, the
script associated with the VNF LCM operation needs to be
executed before the event, or after the event,
respectively.
On the other hand, if the event is of type
external-lifecycle-management-script-event, then the
script associated with the event needs to be executed
for the given VNF LCM operation.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
leaf-list lcm-transition-event {
type string;
description
"Describes the transition VNF lifecycle event(s) that
cannot be mapped to any of the enumerated values
defined for the event attribute.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
leaf script {
type string;
description
"Includes 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.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
"Defines the domain specific language (i.e. the type) of
script that is provided. Types of scripts could include
bash, python, etc.";
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
type string;
description
"Includes 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.
The string value specified here is a path to a file in
the VNF package.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
description
"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.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
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committed
status deprecated;
key "id";
description
"Describes the associated elements of a VNFD for a certain
Mahesh Jethanandani
committed
purpose during VNF lifecycle management.
Reason for deprecating this node - Information about which
VDU and VLD are involved in scaling is better defined by
ScalingDelta.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf id {
type string;
"Unique identifier of this group in the VNFD.";
"GS NFV IFA011: Section 7.1.4 VnfdElementGroup
information element";
}
leaf description {
type string;
description
"Human readable description of the group.";
reference
"GS NFV IFA011: Section 7.1.4 VnfdElementGroup
information element";
}
leaf-list vdu {
type leafref {
path "../../vdu/id";
description
"References to Vdus that are part of this group.";
reference
"GS NFV IFA011: Section 7.1.4 VnfdElementGroup
information element";
}
leaf-list virtual-link-desc {
type leafref {
path "/nfv:nfv/nfv:vnfd/nfv:int-virtual-link-desc/nfv:id";
description
"References to VnfVirtualLinkDesc that are part of this
group.";
reference
"GS NFV IFA011: Section 7.1.4 VnfdElementGroup
information element";
list indicator {
key "id";
description
"Declares the VNF indicators that are supported by this
VNF.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf id {
type string;
"GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
information element";
}
leaf name {
type string;
description
"The human readable name of the VnfIndicator.";
reference
"GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
information element";
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"Defines the allowed values or value ranges of this
indicator.";
reference
"GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
information element";
}
leaf source {
type enumeration {
enum "vnf";
enum "em";
enum "both";
}
description
"Describe the source of the indicator. The possible values
are:
• VNF.
• EM.
• Both.
This tells the consumer where to send the subscription
request.";
"GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
information element";
leaf-list auto-scale {
type string;
description
"Rule that determines when a scaling action needs to be
triggered on a VNF instance e.g. based on certain VNF
indicator values or VNF indicator value changes or a
combination of VNF indicator value(s) and monitoring
parameter(s).";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
}
list vnf-package-change-info {
Mahesh Jethanandani
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// IFA011ed332 defines the key as VersionSelector, which is
// nothing but a combination of src-vnfd-id, dst-vnfd-id and
// src-flavour-id. YANG cannot use a composite as a key, and
// therefore the model breaks it out as three elements that
// form the key.
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key "src-vnfd-id dst-vnfd-id src-flavour-id";
leaf src-vnfd-id {
type string;
description
"Identifier of the source VNFD and the source VNF
package. Either the srcVnfdId or the dstVnfdId shall be
equal to the vnfdId of the VNFD containing this version
selector.";
reference
"GS NFV IFA011: Section 7.1.15.3 VersionSelector
information element";
}
leaf dst-vnfd-id {
type string;
description
"Identifier of the destination VNFD and the destination
VNF package. Either the srcVnfdId or the dstVnfdId shall
be equal to the vnfdId of the VNFD containing this version
selector.";
reference
"GS NFV IFA011: Section 7.1.15.3 VersionSelector
information element";
}
leaf src-flavour-id {
type string;
description
"Identifier of the deployment flavour in the source VNF
package for which this modification applies. It is up to
protocol design stage to decide whether there is further
optimization potential to apply one modification for
multiple srcFlavourIds.";
reference
"GS NFV IFA011: Section 7.1.15.3 VersionSelector
information element";
}
leaf additional-params-id {
type leafref {
path "../../df/lcm-operations-configuration/" +
"change-current-vnf-package-op-config/id";
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}
description
"References the ChangeCurrentVnfPackageOpConfig information
element that defines the valid additional parameters for
the change.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
leaf-list modification-qualifier {
type enumeration {
enum "up";
enum "down";
enum "vnf-upgrade";
enum "vnf-update";
enum "vnf-downgrade";
}
description
"When present, it specifies the type of modification
resulting from transitioning from srcVnfdId to dstVnfdId.
• UP:indicating that the destination VNF version is newer
than the source version,
• DOWN:indicating that the destination VNF version is
older than the source version.
When provided, UP and DOWN values shall always be
supported as the first value. In addition, a vendor may
specify additional values and provide such values to
qualify further the change between the two versions such
as VNF_UPGRADE, VNF_UPDATE, VNF_DOWNGRADE, etc.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
Mahesh Jethanandani
committed
leaf-list additional-modification-description {
type string;
description
"A VNF provider may define additional information to
Mahesh Jethanandani
committed
qualify further the change between the two versions,
such as 'VNF upgrade', 'VNF update', 'VNF downgrade',
etc.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
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list component-mapping {
key "type";
leaf type {
type string;
description
"The type of component or property. Possible values
differentiate whether changes concern to some VNF
component (e.g., VDU, internal VLD, etc.) or property
(e.g., a Scaling Aspect, etc.).";
reference
"GS NFV IFA011: Section 7.1.15.4 ComponentMapping
information element";
}
leaf source-desc-id {
type string;
description
"Identifier of the component or property in the source
VNFD.";
reference
"GS NFV IFA011: Section 7.1.15.4 ComponentMapping
information element";
}
leaf dst-desc-id {
type string;
description
"Identifier of the component or property in the
destination VNFD.";
reference
"GS NFV IFA011: Section 7.1.15.4 ComponentMapping
information element";
}
leaf description {
type string;
description
"Human readable description of the component changes.";
reference
"GS NFV IFA011: Section 7.1.15.4 ComponentMapping
information element";
}
description
"Mapping information related to identifiers of components in
source VNFD and destination VNFD that concern to the change
process.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
leaf lcm-script-id {
type leafref {
path "../../lifecycle-management-script/id";
}
description
"Reference to a lifecycle management script that is executed
as part of this 'change current VNF Package' process.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
leaf coordination-action-name {
path "../../lcm-operations-coordination/coordination-action-name";
"Reference to applicable VNF LCM operation coordination actions
that can be invoked during a VNF package change as defined by
the 'selector' attribute.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
leaf dst-flavour-id {
type leafref {
path "../../df/id";
}
description
"Identifies the deployment flavour in the destination VNF
package for which this change applies. The flavour ID is
defined in the destination VNF package.";
reference
"GS NFV IFA011: Section 7.1.15.2 VnfPackageChangeInfo
information element";
}
description
"Information used for performing the change of the current
VNF Package. More than one VNF Package Change Info construct
is possible to cater the possibility that changes of the
current VNF Package can be performed for different source
VNFDs.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
}
list lcm-operations-coordination {
key "coordination-action-name";
leaf coordination-action-name {
type string;
description
"Identifies the specific VNF LCM operation coordination
action.Shall be unique within the scope of VNFD";
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reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
leaf description {
type string;
description
"Human readable description of the coordination action.";
reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
leaf endpoint-type {
type enumeration {
enum "mgmt";
enum "vnf";
}
description
"Specifies the type of the endpoint exposing the LCM
operation coordination such as other operations supporting
or management systems (e.g. an EM) or the VNF instance.
• MGMT: coordination with other operation supporting
• VNF: coordination with the VNF instance.";
reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
leaf coordination-stage {
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3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
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3959
type enumeration {
enum "start";
enum "end";
}
description
"Indicates whether the coordination action is invoked before
or after all other changes performed by the VNF LCM
operation.
Values:
• START:the coordination action is invoked after receiving
the grant and before the LCM operation performs any
other changes.
• END:the coordination action is invoked after the LCM
operation has performed all other changes.
This attribute shall be omitted if the coordination action
is intended to be invoked at an intermediate stage of the
LCM operation, i.e. neither at the start nor at the end.
In this case, the actual instant during the LCM operation
when invoking the coordination is determined by means outside
the scope of the present document such as VNFM-internal logic
or LCM script.";
reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
list input-parameter {
key "key";
leaf key {
type string;
}
leaf value {
type string;
}
description
"Input parameter needed by the external coordinating
entity.";
reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
list output-parameter {
key "key";
leaf key {
type string;
}
leaf value {
type string;
}
description
"Output parameter provided by the external coordinating
entity.";
reference
"GS NFV IFA011: Section 7.1.16.2 VnfLcmOperationCoordination
information element";
}
description
"Provides information used for the coordination in VNF LCM
operations.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
}