EXFO FTB-8500 Series for FTB-500 - Manual (Page 226)

Stream Generation Tabs
212 FTB-8500 Series and FTB-8120NGE/8130NGE
Stream Configuration
The following table lists each component that may affect the
minimum size values.
Note: Changing one of the traffic type value will affect the two other traffic type
values.
Note: Sending traffic with frame size >1518 in switched network may result in
losing all frames.
Component Description
VLAN 4 bytes per VLAN (up to 3 VLAN)
UDP 8 bytes
TCP 20 bytes
Ethernet Header 14 bytes
LLC and SNAP Headers 8 bytes
IPv4
20 bytes
IPv6 40 bytes