Service Oriented Network Architecture (SONA) is an ongoing architectural framework that supports emerging technologies, IT strategies, and initiatives. SONA is a three-layer model, as shown below in Figure 2.3.
Figure 2.3 – SONA Three-layer Model
The bottom layer is comprised of the physical infrastructure, which is also referred to as the network infrastructure layer. This is where the servers, storage, and clients are located and includes different modular design areas (e.g., WAN, enterprise . . .
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