RSSI - 0dBm is very good, -90 dBm is weak(poor)

802.11 frame

DS - Distribution System/Station (AP)

MRNCCIEW

Aruba 802.11 MAC Header

Distributed Coordinate function

CCA

CSMA-CD/CA

Frame types

Management Frames

Reassociation means associated to the same SSID but with the different BSSID

Control Frames

Client scanning

AP States

WLC Discovery methods

Either of this 3 methods is used

During that broadcast process of sending out the discovery requests and the responses from the WLCs, those responses will include a load amount, and an access point will attempt to connect to the one that is least loaded. If the access points run into a situation where the wireless LAN controllers are overloaded and there's no more room on any of them there is a procedure to resolve this, and that's priority. Access points can be provided a priority. All access points receive a default of low priority, and you can, of course, go into an access point manually and change that to something else. So maybe you want to provide a high priority to all of your access points along the hallway, but leave it as a low priority for those in the lobby. Something like that. A wireless LAN controller will bump and disconnect a low‑priority access point to favor a higher‑priority access point that has come online.

RRM

TPC

DCA

CHD