Teledyne Lecroy Frontline 802.11, Руководство по аппаратному и программному обеспечению, Страница: 56 / 223

3. Watch the status bar on the
Control
window to monitor how full the file is. When the file is full, it begins
to wrap, which means the oldest data will be overwritten by new data.
4. Click the
Stop Capture icon to temporarily stop data capture. Click the Start Capture icon again to
resume capture. Stopping capture means no data will be added to the capture file until capture is
resumed, but the previously captured data remains in the file.
5. To clear captured data, click the
Clear
icon .
l
If you select Clear after selecting Stop Capture , a dialog appears asking whether you want to save
the data.
o
You can click Save File and enter a file name when prompted .
o
If you choose
Do Not Save
, all data will be cleared.
o
If you choose Cancel, the dialog closes with no changes.
l
If you select the
Clear
icon while a capture is occurring:
o
The capture stops.
o
A dialog appears asking if you want to save the capture
o
You can select
Yes
and save the capture or select
No
and close the dialog. In either case, the
existing capture file is cleared and a new capture file is started.
o
If you choose Cancel , the dialog closes with no changes.
To see how to capture to a single file, choose System Settings from the Options menu on the Control window.
When live capture stops, no new packets are sniffed but there can still be packets that were previously sniffed but
not yet read by the ComProbe analyzer. This happens when packets are being sniffed faster than the ComProbe
analyzer can process them. These packets are stored either on the ComProbe hardware itself or in a file on the
PC. If there are remaining packets to be processed when live capture stops the
Transferring Packets
dialog
below is displayed showing the packets yet to be read by the ComProbe analyzer. The dialog shows the name of
each ComProbe hardware device, its process id in square brackets, and the number of packets remaining. These
stored packets are read until they’re exhausted or the user clicks the Discard button on the dialog.
Unlike 802.11, Bluetooth packets never come in faster than the datasource can process them. However, Bluetooth
packets must still be stored so that they can be read in chronological order with the 802.11 packets.
TELEDYNE LECROY Chapter 4 Capturing and Analyzing Data
50 Frontline 802.11 Hardware & Software User Manual