What is an Extended Service Set (ESS) designed for?

An Extended Service Set (ESS) is specifically designed to cover larger areas by utilizing multiple access points. This setup allows for a seamless wireless network experience across extensive spaces by integrating several Basic Service Sets (BSS) that communicate with each other. In an ESS, each access point serves a designated area, ensuring that users can move throughout the coverage zone without losing connectivity, as their devices automatically associate with the strongest signal from the nearest access point.

The architecture of an ESS includes a Distribution System (DS) that connects the different access points, enabling them to share the same network. This system is especially useful in environments where users need wireless coverage in larger areas, such as campuses, large offices, or public spaces.

In contrast, operating with only one access point indicates a Basic Service Set (BSS), not an ESS. Creating a separate network for guest users typically involves network segmentation or the use of virtual LANs (VLANs) rather than the structure of an ESS. Connecting devices in ad-hoc mode refers to a decentralized network configuration, again distinct from the hierarchical and structured approach of an ESS, which relies on established access points.