Large-Scale IP Network Solutions (CCIE Professional Development)

Tools and Techniques

Network design is both an art and a science. The science involves exploiting various methodologies to meet all the requirements within the given constraints. Each of these methods trades one constrained resource for another. The art involves choosing the best balance between constrained resources, resulting in a network that is future-proof—one that will grow to meet increased, or even radically new, requirements.

Modularization and Layering

Two of the most common design and implementation methodologies are those of modularization and layering. Both enable the network problem to be broken down into something more manageable, and both involve the definition of interfaces that enable one module or layer to be modified without ...