In order to educate customers about maximum capabilities of clients, the Air Expert series can be configured to emulate 1
antenna, 2 antenna, or 3 antenna clients. Refer to
for setup instructions.
Maximum Bit Rates for Various Channel Widths and Streams
When configured as 3x3 device, the Maximum Phy Rate supported by the WiFi Air Expert series is 1299 Mb/s (3x3:3) on an
802.11ac link with 80 MHz channel width.
The Max Phy rate is only achievable in
ideal environmental conditions
. Distance between the WiFi AP and the Client will
further reduce the Phy Tx and Rx rates. Attenuation from the environment or interference sources (from WiFi, non WiFi
sources) will also reduce the performance.
Other users connected on the same AP, or an AP sharing the same channel or adjacent channel, will also share available
bandwidth and further reduce performance as WiFi frames can only be transmitted when the channel is not utilized.
The TCP and UDP data rate are expected to be around 60 to 65% of the Phy rate due to IP and TCP/UDP protocol
overhead and WiFi physical layer and protocol layer overhead. In addition, when running iPerf3 on a server, the server’s
hardware and operating system’s performance can further degrade the achieved TCP/UDP throughput.
These considerations combined make it difficult to predict the actual data throughput on a WiFi network. Network operators should
focus instead into setting a target data rate SLA based on the applications used and test against these values, rather than trying to
achieve the absolute maximum throughput.
11.2.3 V-Perf Graph Results
The Graph tab displays Throughput graph results by default. Jitter and Loss graphs can be accessed by tapping on their
corresponding function keys. The top section displays the current test status. The bottom section displays graph results.
The
X-axis
for Throughput, Jitter, and Loss graphs represent time in HH:MM:SS format.
The
Y-axis
changes depending on the graph selected.
Use the Left and Right arrow keys
to scroll through the x-axis.
V-Perf Throughput Graph Results
WiFiAirExpertSeries_eManual_D07-00-120P_Rev A00
