User Manual

Psion Teklogix 9160 Wireless Gateway User Manual 183
Chapter 19: Quality of Service (QoS)
Configuring Station EDCA Parameters
19.2.3 Configuring Station EDCA Parameters
Station Enhanced Distributed Channel Access (EDCA) Parameters affect traffic
flowing from the client station to the access point.
Field Description
Queue Queues are defined for different types of data transmitted from station-to-AP:
Data 0 (Voice)
Highest priority queue, minimum delay. Time-sensitive data such as VoIP and streaming media
are automatically sent to this queue.
Data 1(Video)
Highest priority queue, minimum delay. Time-sensitive video data is automatically sent to
this queue.
Data 2 (best effort)
Medium priority queue, medium throughput and delay. Most traditional IP data is sent to
this queue.
Data 3 (Background)
Lowest priority queue, high throughput. Bulk data that requires maximum throughput and is not
time-sensitive is sent to this queue (FTP data, for example).
For more information, see “QoS Queues And Parameters To Coordinate Traffic Flow” on
page 174.
AIFs
(Inter-Frame Space)
The Arbitration Inter-Frame Spacing (AIFs) specifies a wait time (in milliseconds) for data
frames.
For more information, see “EDCF Control Of Data Frames And Arbitration Interframe Spaces”
on page 176.
Table 19.2 Station EDCA Parameters