ORiNOCO
®
802.11n Access Points - Software Management Guide 62
• QoS Profile
• QoS Policy
5.6.1 Enhanced Distributed Channel Access (EDCA)
EDCA is a prioritized ‘Carrier Sense Multiple Access with Collision Avoidance (CSMA)/CA’ access mechanism used by the
clients/AP device in a WME enabled BSS to realize different classes of differentiated channel access.
A wireless entity is defined as, all wireless clients and devices in the wireless medium contending for the common wireless
medium. EDCA uses a separate channel access function for each of the access categories (Index), within a wireless entity. Each
channel access function in a wireless entity contends for the wireless medium as if it were a separate client contending.
Different channel access functions in a given wireless entity contend among themselves for access to the wireless medium in
addition to contending with other clients.
Station EDCA Table and AP EDCA Table
This feature allows the user to configure the EDCA parameters for the wireless client (Station) and the AP device. The EDCA
parameter set provides information needed by the wireless clients for proper QoS operation during the wireless contention
period. These parameters are used by the QoS enabled AP device to establish policy, to change policies when accepting new
clients or new traffic, or to adapt to changes in the offered load. The EDCA parameters assign priorities to traffic types where
higher priority packets gain access to the wireless medium more frequently than lower priority packets.
: Proxim recommends you not to modify the default values of EDCA parameters defined in the web interface, unless
strictly necessary.
Navigate to CONFIGURATION > QoS > EDCA. The QoS EDCA screen appears.
Figure 5-24 QoS EDCA
To Next Page
Loading...
Need help?
General
