Cisco Cisco WAP571 Wireless-AC N Premium Dual Radio Access Point with PoE Manual De Manutenção
Wireless
Quality of Service
Cisco WAP571/E Administration Guide
109
5
STEP 1
Select Wireless > QoS in the navigation pane. Select the radio interface on which
to configure QoS settings (Radio 1 or Radio 2).
to configure QoS settings (Radio 1 or Radio 2).
STEP 2
Select an option from the EDCA Template list:
•
WFA Defaults—Populates the WAP device and Station EDCA parameters
with WiFi Alliance default values, which are best for general, mixed traffic.
with WiFi Alliance default values, which are best for general, mixed traffic.
•
Optimized for Voice—Populates the WAP device and Station EDCA
parameters with values that are best for voice traffic.
parameters with values that are best for voice traffic.
•
Custom—Enables you to choose custom EDCA parameters.
These four queues are defined for different types of data transmitted from WAP-
to-station. If you choose a Custom template, the parameters that define the queues
are configurable; otherwise, they are set to predefined values appropriate to your
selection. The four queues are:
to-station. If you choose a Custom template, the parameters that define the queues
are configurable; otherwise, they are set to predefined values appropriate to your
selection. The four queues are:
•
Data 0 (Voice)—High priority queue, minimum delay. Time-sensitive data
such as VoIP and streaming media are automatically sent to this queue.
such as VoIP and streaming media are automatically sent to this queue.
•
Data 1 (Video)—High priority queue, minimum delay. Time-sensitive video
data is automatically sent to this queue.
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.
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).
that requires maximum throughput and is not time-sensitive is sent to this
queue (FTP data, for example).
STEP 3
Configure the following EDCA and Station EDCA parameters:
NOTE
These parameters are configurable only if you selected Custom in the
previous step.
•
Arbitration Inter-Frame Space—A wait time for data frames. The wait time
is measured in slots. Valid values for AIFS are 1 through 255.
is measured in slots. Valid values for AIFS are 1 through 255.
•
Minimum Contention Window—An input to the algorithm that determines
the initial random backoff wait time (window) for retry of a transmission.
the initial random backoff wait time (window) for retry of a transmission.
This value is the upper limit (in milliseconds) of a range from which the initial
random backoff wait time is determined.
random backoff wait time is determined.
The first random number generated is a number between 0 and the number
specified here.
specified here.