User's Manual Part 1

Table Of Contents
Tech-X Flex User Guide - Firmware v06.50 Tech-X Flex
®
(NG2)
3-16
Intro
Overview
Wi-Fi
Ethernet
System
IP/Video
MoCA
RF
Specs
Table 3-5 Devices table fields
Result Description
MAC Address Hardware address of the device Wi-Fi interface.
Vendor Device vendor, based on a simple lookup of the MAC address. This lookup uses
an internal table that contains data similar to any publicly-available address
lookup. Therefore, its accuracy cannot be guaranteed.
Possible vendors for a unit include:
Spirent
Atheros
Broadcom
•SparkLAN
RF Util % Estimated total utilization of the entire channel capacity by the respective device.
This value is effectively a “percentage of a percentage,” described in further detail
below.
The Wi-Fi hardware provides an overall channel utilization by all devices, which is
displayed in the main Details screen. Because this circuitry and associated
firmware have direct and constant knowledge of the physical layer bitstream, the
overall utilization remains accurate. For a single device in the Devices screen, the
unit:
Calculates the percentage of time that the device occupied in the most recent
sample period, effectively a utilization percentage within the sample only.
Multiplies this calculated percentage against the overall channel utilization to
determine the usage by that device.
For example, if overall channel utilization is 30% and the sampled device
utilization is 10%, the RF Util % is calculated as 3%. That is, the device is using
3% of the total channel capacity.
Note that because this value is partially based on a limited sample period only, its
accuracy cannot be guaranteed.
Captured % The total amount of data sampled with respect to the total amount of data
traversing the channel. Knowledge of the physical layer bitstream allows the unit
to interpolate the total amount of data, even though it did not sample it all. Note
that:
This value provides a rough indication of how accurate the other calculations
may be.
Because this calculation applies at the channel level, the value is the same for
all devices, except lingering devices that display all zeros.
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