Extreme Networks Summit WMScanner User Manual page 100

Measurement Surveys
Packet Error Rate - Percentage of packets that the client sent, but the server never returned. Possible
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causes for lost packets include: the packet was mis-routed from the client to the server, the packet
was mis-routed from the server to the client, or the network latency was too high and the packet did
not return in the given timeout interval. This statistic is only available for UDP Stream mode.
Round Trip Time - The time it takes a packet to be sent from the client to the server and then sent
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from the server back to the client. This statistic is only available for UDP Stream mode.
Client Packet Size - The size of the data payload that the client is sending to the server. This number
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represents the current settings of the client.
Server Packet Size - The size of the data payload that the server is sending to the client. This number
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represents the current settings of the client.
Packet Timeout - The amount of time that the client will wait for a reply from the server before it
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assumes that a sent packet has been lost. This number reflects the current setting of the client. This
setting is only used by UDP Stream mode.
Averaging Interval - Lists the time over which the client is averaging its measurements of the
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throughput, packet error rate, packet latency, etc. This number reflects the current settings of the
client.
Packet Jitter - Statistical variance of the arrival times of packets that are sent at regular intervals. The
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lower the jitter in your network, the more regular your IP traffic will be because this means that
most packets take the same amount of time to get from a given point A to point B. If there is a high
jitter in your network then two different packets sent from A to B will take two significantly
different times to complete the trip. This statistic is only available for UDP Stream mode.
Noise Strength - The radio power (in dBm) of the general background noise on the frequency that the
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client is operating on.
Transmit Bandwidth - This is the maximum megabits per second that the client can transmit or receive
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from its wireless connection.
WLAN Update Interval - This is how often the client gathers information about its wireless connection
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from its network card. This number represents the current setting of the client.
Peak Data Rate - This is the maximum data rate that the client is recording during packed transmit/
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receive.
You may add or remove the display options when you click on the Configure Display button. This
opens the Configure Data Rows dialog box. Move data rows between the two listboxes by selecting a
row and using the arrow button between the listboxes. Or, you can double-click the desired
selection. Any row listed in the right listbox will be displayed by the client and any row displayed in
the left list box will not be displayed. Furthermore, you can change the row display order by clicking
once on the row that you wish to move, and selecting either the Move Up or Move Down buttons.
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Summit WMScanner Users Guide