HPA Requirements
HPA requirements describe VNF component-specific dependencies on the underlying hardware platform capabilities. HPA requirements are specified as part of the VNF descriptor (VNFD) templates, created during VNF packaging and containing all information needed for initial instantiation and subsequent operation of a given VNF. HPA requirements are expressed as arrays of tuples, where each tuple fully defines a single HPA requirement.
Each requirement tuple has the following format:
(<version-spec>, <hardware-architecture>, <requirement-name>, <requirement-value>, <need-level>)
where the tuple elements are defined as follows:
| <version> | A unique quote delimited string identifier representing the version of the tuple format. |
| <hardware-architecture> | A unique quote delimited string identifier representing the hardware platform architecture associated with the requirement. A value of "*" (star) indicates that the given requirement is hardware vendor agnostic. |
| <requirement-name> | A unique quote delimited string identifier representing the name of the requirement. |
| <requirement-value> | A unique quotedelimited string identifier representing the value/settings of the requirement. |
| <need-level> | A quote delimited string constant stating whether the requirement is mandatory or optional. Has one of two possible values - "mandatory" or "optional". |