SDN, NFV, and SDS

  • Software-defined networking (SDN) abstracts the control over the flow of data by separating logical control rules from physical data forwarding into the control plane and the data plane. Logical control rules are programmable as software, while sophisticated data-plane functionality is virtualizable through Network function virtualization (NFV).
  • Software-defined security (SDS) is a security model that exploits SDN/NFV to enforce network security by security software on generic servers abstracting security appliances, such as Firewall, IDS, etc.

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