Networking: Advanced Switching

The access

he access layer provides endpoints and users direct access to the network.

All enterprise networks must:

Support critical applications Support converged network traffic Support diverse business needs Provide centralized administrative control

A hierarchical LAN design includes the following three layers

Access layer Distribution layer Core layer

Breaking the design up into layers allows

Breaking the design up into layers allows each layer to implement specific functions, which simplifies the network design and therefore the deployment and management of the network.

The campus wired LAN uses

The campus wired LAN uses a hierarchical design model to break the design up into modular groups or layers.

The distribution layer

aggregates access layers and provides connectivity to services.

The campus wired LAN enables

communications between devices in a building or group of building, as well as interconnection to the WAN and internet edge at the network core

You create a campus network by

interconnecting a group of LANs that are spread over a small geographic area. Campus network designs include small networks that use a single LAN switch, up to very large networks with thousands of connections.

The LAN is the

networking infrastructure that provides access to network communication services and resources for end users and devices spread over a single floor or building