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  1. Release Requirements
  2. REQ-116

ONAP interfaces with an external VNF Manager using ETSI NFV SOL003

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      Description

      • Scenario 1:
        • An external VNFMs registers with ONAP as a SOL003 compliant VNF Manager and is cataloged
        • A designer uses SDC to design a new service that references a VNF
        • The SDC presents the designer with details from the VNF-D including resource requirements of each of the flavors, the required input parameters and the external connections points
        • The designer selects a deployment flavor, provides default values for the input parameters and specifies how the service should terminate the external connection points
        • The designer annotates the VNF reference in the service with a reference to one of the cataloged external VNFMs that have previously registered
        • The new service is cataloged
      • Scenario 2:
        • An operator requests a new instance of a service
        • ONAP examines the service and determines that it needs to use an external VNFM to manage a VNF in the service
        • ONAP determines which resources should be used to instantiate the VNF and issues a SOL003 create VNF instance request to the VNFM referenced in the service.
        • The VNFM requests the entire VNF package as provided by the vendor
        • The VNFM extracts the manifest file from the VNF package and compares the signed file digests against the computed digest of each file in the package
        • The VNFM replies with a VNF instance ID.
        • ONAP issues a SOL003 instantiate request of the VNF instance ID
        • The VNFM examines the VNF-D and issues a SOL003 grant request to ONAP asking which resources to use
        • ONAP replies with references to the appropriate VIM and credentials for accessing that VIM
        • The VNFM instantiates the VNF instance according to the VNF-D
        • The VNFM replies with status
      • Scenario 3:
        • Periodically an ONAP policy requests the status of the service instance.
        • ONAP determines that a VNF in the service instance is managed by an external VNFM
        • ONAP issues a SOL003 query VNF instance request of the referenced VNFM
        • The VNFM replies with the status the VNF instance
      • Scenario 4:
        • ONAP determines that a VNF instance has crossed a overload trigger
        • ONAP determines that the  VNF instance is controlled by an external VNFM
        • ONAP sends a SOL003 scale out request to the VNFM referencing the VNF instance
        • The VNFM examines the VNF-D and issues a SOL003 grant request to ONAP asking which resources to use
        • ONAP replies with reference the appropriate VIM and credentials for accessing that VIM
        • The VNFM scales the VNF instance using the granted resources according to the info in the VNF-D
        • The VNFM replies with status

          

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              Assignee:
              ciaranmurphy Ciaran Murphy
              Reporter:
              foliveira Fernando Oliveira
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