CWAP MAC Sublayer and Functions - Beacon Frames
The biggest part of the CWAP exam is "MAC Sublayer and Functions" which encompasses 25% of the exam. Because of this, you need a deep understanding of frame formats and what their purpose is in the environment. I started with management frames: Management frames have type 00 in the Frame Control Field The Frame Control Field is in all 802.11 frames and it contains information like the frame subtype along with tons of other information that will be discussed later. Management Frame Subtypes: As you may have noticed in the image above, the frame control field contains a Subtype. There are 16 management frame subtypes: Each of the frame subtypes are important to managing the stations that are on the WLAN. Beacon The beacon frame is something we see visualized without knowing it. This is visible to us when you go into the wireless settings on your device and see the SSID's of WiFi networks around you. The inform...