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Timestamp initialization:
Specifies how the timestamp will be set at hardware startup.
Wait for sync:
Waits until timestamp synchronization before allowing traffic
capture.
PPS port output:
Sets the PPS port to output mode. Will output a PPS signal if
the GPS is synchronized.
Force PPS generation:
If PPS port output is set, forces the generation of a PPS signal
from the internal RTC (real-time clock).
Set time from SNTP / Set time from GPS:
Sets the ProfiShark 1G+ to the selected mode of timestamping.
PPS compensation:
The PPS compensation slider can set the PPS to compensate
for latency. For instance, 1 meter of cable adds 3 ns of latency,
in which case the slider should be set to -3 ns (-15 ns for 5
meters, -30 ns for 10 meters, etc.).
Timestamp on:
- Capture: timestamps are set to the packets at the moment
they are captured within the device.
- Ingress: timestamps are adjusted to account for latency in
order to simulate timestamping at port ingress.
- Egress: timestamps are adjusted to account for latency in
order to simulate timestamping at port egress.
- Example of use: set one port to egress on a first ProfiShark
and one to ingress on a second ProfiShark to measure the
latency between both ports.
