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scaling delta. Shall be zero or greater.";
reference
"GS NFV IFA011: Section 7.1.8.9 VduLevel
information element";
}
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;
description
"Throughput requirement of the link (e.g.
bitrate of E-Line, root bitrate of E-Tree,
aggregate capacity of E-LAN).";
reference
"GS NFV IFA011: Section 7.1.8.6
LinkBitrateRequirements information element";
}
leaf leaf {
type uint32;
units bits/sec;
description
"Throughput requirement of leaf connections to
the link when applicable to the connectivity
type (e.g. for E-Tree and E-LAN branches).";
reference
"GS NFV IFA011: Section 7.1.8.6
LinkBitrateRequirements information element";
}
description
"Bitrate requirements for an instantiation level
or bitrate delta for a scaling step.";
reference
"GS NFV IFA011: Section 7.1.10.5
VirtualLinkBitRateLevel information element";
}
description
"The bitrate to be added or removed to virtual links
created from particular virtual link descriptors.";
reference
"GS NFV IFA011: Section 7.1.10.4 ScalingDelta
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";
}
description
"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.";
reference
"GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails
information element";
"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.";
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reference
"GS NFV IFA011: Section 7.1.10.2 ScalingAspect
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 auto-scalable {
type boolean;
description
"It permits to enable (TRUE) / disable (FALSE) the
auto-scaling functionality.";
reference
"GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
information element";
}
leaf auto-healable {
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";
}
list additional-configurable-property {
key "key";
leaf key {
type string;
}
leaf value {
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;
description
"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.";
reference
"GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes
information element";
}
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 "event";
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 event {
type internal-lifecycle-management-script-event;
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description
"Describes VNF lifecycle event(s) or an external stimulus
detected on a VNFM reference point.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
leaf 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";
}
leaf script-dsl {
type string;
description
"Defines the domain specific language (i.e. the type) of
script that is provided. Types of scripts could include
bash, python, etc.";
reference
"GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
information element";
}
list script-input {
key "key";
leaf key {
type string;
}
leaf value {
type string;
}
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";
}
}
list element-group {
key "id";
description
"Describes the associated elements of a VNFD for a certain
purpose during VNF lifecycle management.";
reference
"GS NFV IFA011: Section 7.1.2 VNFD information element";
leaf id {
type string;
description
"Unique identifier of this group in the VNFD.";
reference
"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 "../../nfv:vdu/nfv: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:int-virtual-link-desc/nfv:id";
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}
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;
description
"Unique identifier";
reference
"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";
}
leaf-list indicator-value {
type string;
description
"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.";
reference
"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";
}
}
}
}