Extreme Networks Summit WMScanner, User Manual

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Measurement Surveys
Summit WMScanner Users Guide
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often measurements are automatically flushed to the logfile. For receivers that support configurable
averaging of data points, the
Options dialog box provides control over the type of averaging and the
averaging interval. (Note that linear averaging converts values to linear power units such as Watts
before averaging, while the dB averaging algorithm averages the dB values directly.) The
Record Data
dialog box has a Center on Marker check box that controls the display of the screen as measurements
are recorded. If this check box is checked then the drawing view automatically centers itself around
each marker that is taken. If the box is not checked, then the screen maintains its zoom and pan
settings until manually adjusted with the zoom or pan buttons.
AP Performance Mode
The AP Performance mode determines the performance of the client – AP link, when a client is
associated with the AP. The AP Performance mode has the following features:
●
To test the performance of the client – AP link; client should be associated with the AP.
●
The measurements adapter should be used to get the performance of the link, this adapter adds the
capability to measure some more fields not returned by normal WLAN adapters. Though simple
WLAN adapters are also supported (for backwards compatibility), not all data is available from
default drivers. Hence, it is advisable to use the measurements adapter.
●
To judge link performance, there should be continuous data transfer between the AP and the
associated client. The AP Performance mode has two data transfer modes by which this continuous
data transfer can be done.
●
It helps you scan the surrounding APs. This scanning is the default scanning done by the driver that
cannot be configured (channel, dwell time, etc.) by the user. This scanning does not support
reporting of noise information.
●
You can measure throughput by using a AP Performance Server session.
NOTE
To properly judge the performance of an 11n AP, it is mandatory to perform a measurement survey in the AP
Performance mode using the measurements adapter by enforcing data transfer between the AP and the client.