EXFO FTB-800 Series for FTB-1 - Manual (Page 235)

Test Setup - Test Configurator, Timer, and System
NetBlazer 225
Streams - Profile

For Random type, the frame size range is from 64 to 1518 bytes.
However, the minimum frame size will be adjusted according to
the frame structure and components selected. See above table for
components that may affect the minimum frame size value. The
maximum frame size vale is also adjusted for VLAN (+4 bytes per
VLAN).
Shaping

TX Mode allows the selection of the transmission mode for the
selected stream when Data profile is selected. The TX Mode is forced
to Continuous for Voice and Video profiles.
Continuous (default) transfers
the selected frame continuously
according to the selected
percentage of bandwidth.
n-Frame transfers the selected
number of frames.
Burst transfers the selected frame
at maximum bandwidth for the
selected Burst Duty Cycle over
the Period.
n-Burst transfers the selected
number of Burst.
Ramp transfers the selected
bandwidth in a stair shape
according to the selected step
time, number of steps, and
maximum bandwidth.
n-Ramp transfers the selected
number of Ramp.