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Multi-cloud networking - Why has it taken so long?

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 Multi-cloud networking universe A couple of terms to understand. Private cloud:  A private cloud describes a datacenter built with current cloud technologies that runs “on-premises,” or is hosted and managed by an organization or an enterprise itself .   Public cloud:  a  public cloud is a pool of virtual resources—developed from hardware owned and managed by a third-party company—that is automatically provisioned and allocated among multiple clients through a self-service interface. It’s a straightforward way to scale out workloads that experience unexpected demand fluctuations. Today’s public clouds aren’t usually deployed as a standalone infrastructure solution, but rather as part of a heterogeneous mix of environments that leads to higher security and performance; lower cost; and a wider availability of infrastructure, services, and applications. Multicloud:  Enterprises might need services or resources from multiple IaaS or PaaS services, such as Amaz...