Case Study: The Two-Layer Network

If all the access points in a network connect to the same physical location (one building, for instance), it's possible to collapse the core and distribution layer onto a single network (or a set of parallel high speed LANs), producing a design something like that shown in Figure 6-10.

Essentially, this type of network collapses the core and distribution layer into one set of routers, or one area, within the design. Deciding where to place the L1/L2 border in this type of network is much easier because there is such a natural break between the distribution layer and the network core. Figure 6-11 illustrates this.

Figure 6-10. A Two-Layer Network

The bottleneck in this design will eventually be the parallel ...

Get Advanced IP Network Design (CCIE Professional Development) now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.