[<< Back](../) # 3. Cloud Infrastructure + VNF Target State & Specification
## Table of Contents * [3.1 Introduction](#3.1) * [3.2 VNF profile](#3.2) * [3.3 Cloud Infrastructure SW profile](#3.3) * [3.4 Cloud Infrastructure Hardware Profile](#3.4) * [3.5 Cloud Infrastructure Required State](#3.5) * [3.6 Cloud Infrastructure and VIM Architecture](#3.6) * [3.7 Cloud Infrastructure and VIM Component Level Architecture](#3.7) * [3.8 Interface and API for Reference Implementation 1](#3.8) ## 3.1 Introduction The VNF profile is used to describe every workload running on top of Cloud Infrastructure. The Cloud Infrastructure SW profile is used to describe the list of features provided by the hypervisor and host OS. The CNTT Reference Model will be referenced as **RM** to avoid long and duplicated reference titles. ## 3.2 VNF profile Any virtual network functions and/or cloud-native network functions must choose to run on one of the pre-defined of entries in Cloud Infrastructure Infrastructure Profiles Catalogue. As states in [RM: 4 Infrastructure Capabilities, Measurements and Catalogue: 4.2 Catalogue](../../../ref_model/chapters/chapter04.md#4.2), the entry uses the following naming convention. `B/N .