EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 242)

Test Setup - Test Configurator, Timer, and System
230 FTB/IQS-88000 Series
Streams - Profile

Frame Size (Bytes) for Data profile is selectable: Fixed (default),
Random, or Sweep. The Frame Size is forced to Fixed for Voice and
Video profiles.

For Fixed type, the frame size is as follow.

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. The following table
lists each component that may affect the minimum frame size
value. The maximum frame size value is also adjusted for VLAN
(+4 bytes per VLAN).
Profile Codec Frame Size
IPv4 IPv6
Voice VoIP G.711 138 158
VoIP G.723.1 82 102
VoIP G.729 78 98
Video All codec 1374 1394
Data - Programmable from 64 a to 16000 b
a. The minimum frame size will be adjusted according to the frame structure and
components selected. The following table lists each component that may
affect the minimum frame size value.
b. The maximum frame size is limited to 10000 for 10/100/1000Mbps electrical
interface.