User manual

A discontinuity is indicated by a cross-hatched pattern drawn between two packets and a corresponding vertical
dashed line in the throughput graph. When the timestamp delta is greater than 4.01 seconds, the discontinuity is a
cosmetic convenience that avoids excessive empty space. When the timestamp delta is negative, the discontinuity
is necessary so that the packets can be drawn in the order that they occur.
4.3.2.12 low energy Timeline Navigating and Selecting Data
Buttons, menu items, and keystrokes can be used to go to the next or previous packet, next or previous invalid
interframe spacing (IFS), next or previous error packet, and the first or last packet.
l
If there is no selected packet in the timeline, First Packet , Next Packet , and Last Packet
are enabled, but Previous Packet is not.
l A single packet is selected either by clicking on it, navigating to it, or selecting it in the Frame Display.
o
Single Segment Navigation:
n Selecting Previous Packet will select the next packet in time (moving back in time to the left)
regardless of which row it is on. If the previous packet is not in the display or if a portion of the packet
is visible, the display will scroll to the next packet and it will appear selected on the left of the display.
The timestamp will change with the scrolling of the display.
n Selecting Next Packet will select the next packet in time (moving forward in time to the right). If the
next packet is not in the display, the display will scroll to the next packet and it will appear selected on
the right of the display. The timestamp will change with the scrolling of the display.
o
Multiple Segment Navigation:
n Selecting Previous Packet will select the next packet moving back in time (to the left) on the
segment and will select the previous packet regardless of which or segment it is in.
If the selected packet overlaps with the previous segment, the display will show the packet selected in
both segments.
If the previous packet is not shown in the timeline display or a portion of the packet is displayed,the
display will move the view port back in time and will display the selected packet in the top segment on
the left edge. Each segment's timestamps will synchronously change as the view port scrolls backwards
in time.
n Selecting Next Packet will select the next packet moving forward in time (to the right)on the to the
next packet regardless of which row or segment it is in.
If the next packet overlaps on a following segment, the display will show the packet selected in both
segments.
If the next packet is not shown in the timeline display on any segment or a portion of the packet is
displayed, the display will move the view port forward in time and will display the selected packet in
the bottom segment on the right edge. Each segment's timestamps will synchronously change as the
view port scrolls forward in time. All subsequent selected next packets will appear on the right of the
bottom segment.
Chapter 4 Capturing and Analyzing Data TELEDYNE LECROY
Frontline BPA low energy Hardware & Software User Manual 93