Basic Service Set

The solution is to make every wireless service area a closed group—before a device can participate, it must advertise its capabilities and then be granted permission to join. The 802.11 standard calls this a basic service set (BSS). At the heart of every BSS is a wireless access point (AP), as shown in Figure 5-5. The AP operates in infrastructure mode, which means it offers the services that are necessary to form the infrastructure of a wireless network.


Figure 5-5 An 802.11 Basic Service Set.

Because the operation of a BSS ...

Get CCNA Wireless 640-722 Official Cert Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.