EXFO FTB-800 Series for FTB-1 - Manual (Page 422)

Test Functions
412 FTB-700G/800 Series
Filters and Packet Capture - Packet Capture
Trigger

Trigger Type defines the trigger source criterion that will be used to
automatically start/stop the capture when a received frame matches
the filter and the trigger criteria.

Manual automatically starts the frame capture when the Capture
button is on (green LED) and the test is started (refer to Start/Stop
Button on page 492).

On Error starts the frame capture when the selected error occurs.
FCS
Jabber
Oversize (Available when Oversize Monitoring is enabled)
Runt
Undersize
IP Checksum
UDP Checksum
TCP Checksum
Any Type (Any of the above errors).

Field Match starts the frame capture when the configured field
match is encountered. User the Configuration button to select the
field match criteria (see Filter Configuration from the Filters tab).
Cfg. Status indicates the status of the configured field match
configuration: Valid or Invalid. A valid status is required to be able
to start the capture.