Overview
Currently, control loops are VNF oriented, more specifically on VNF orchestration use cases. Here, we are examining how the control loop concept and implementation might be expanded so that it could be used to support PNF use cases.
Problem Statement
There are many PNF use cases that are inherently Control Loop "friendly" and can be described in terms of a Monitor→Analyse→Plan→Act autonomic (MAPE) control loop. Such loops are supported today in ONAP control loop for certain VNF orchestration use cases.
Some Proof of concepts have been implemented using PNFs in ONAP, but to date this has been achieved by "pretending" that the PNF is a VNF and adapting one of the existing Control Loop implementations such as the vCPE one to execute the logic of the PNF use case.