EXFO ETS-1000G - Manual (Page 98)

Delay Variation
88 ETS-1000G
Generator Enable/disable the test traffic generator. If On is selected, the
generator will be enabled at the start of the Delay Variation
test.
Jit. threshold, ms The threshold jitter value.
Lat. threshold, ms The threshold latency value.
Duration The Delay Variation measurement duration.
Traffic generator Open the Traffic Generator menu.