Multi-Tier Architecture and Traffic Patterns
We first take a look at a the high-level logical view of a typical multi-tier architecture. FIGURE 2-2 shows the main logical networks that support an enterprise multi-tier based service infrastructure:
FIGURE 2-2 shows how the various services map directly to a corresponding logical Layer 3 network cloud, shown above in boxes, which then maps directly onto a Layer 2 VLAN. The mapping process starts with the high-level model of the services to be deployed onto the physical model. This top-down approach allows ...
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