This paper describes the role that the HPE Composable Fabric plays as a fundamental component for building an on-premises, composable IT infrastructure, and private cloud. It discusses the benefits of IT infrastructure composability, the requirements, and key considerations for building a composable infrastructure. The document also focuses on the critical role that the network fabric plays in providing the connectivity and intelligence to enable enterprises to quickly compose, decompose, and manage on-premises, data center resources on demand.