EXFO ETS-1000G - Manual (Page 100)

Traffic Generator
90 ETS-1000G
Frame Size If Random is selected, then the frame size will vary accord-
ing to the uniform law within the set limits (Min.frame,
Max. frame menu items).
If Constant is selected, then the frames whose size is set
using the Frame menu item will be used for testing.
Frame Frame size (any value within the range from 64 to 9600
bytes).
Header Open the Header menu.
ET The time that has elapsed since the beginning of the traffic
generation.
RT The time that is left until the end of the traffic generation.