Infrastructure Network
Unit: 12
Lesson: 2
i am tired of taking notes let me out of here
Wireless Access Points are configured to use a MAC address for each radio usage. If a WAP has a 2.4 GHz radio and a 5 GHz radio, each of them will have a unique MAC address.
Devices can join a wireless LAN using the networks SSID. Either taken by broadcast or inputted by the end user. Upon connection, the device probes the network for 802.11 supported standards and security, then prompts the user for a passphrase if necessary.
Most wireless networks use the logical star topology, where each wireless device (often called a 'station') is configured to connect to the WAP.
Basic Service Sets (BSSs)
Each client station needs a wireless adapter compatible with the 802.11 standards supported by the WAP. Communications between the WAP and the client are done using a specific frequency and channel, and the virtual MAC address derived from the active radio band is used to identify the WAP, and is called the BSSID.
Extended Service Sets (ESSs)
Multiple WAPs that are configured to broadcast using the same SSID and security information is called an Extended Service Set (ESS). That means the SSID would be an ESSID when identifying an ESS network.
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