Service-Oriented Network Architecture (SONA) is an ongoing architectural framework that supports emerging technologies, IT strategies, and initiatives. As shown below in Figure 1.1, SONA is a three-layer model:
Figure 1.1 – SONA Three-Layer Model
The physical infrastructure, which is also referred to as the network infrastructure layer, is the bottom layer. This is where the servers, storage, and clients are located and it includes different modular design areas (e.g., WAN, Enterprise Edge, Enterprise . . .
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