EXFO FTB-8500 Series for FTB-500 - Manual (Page 215)

Stream Generation Tabs
Ethernet and Fibre Channel Application 201
Overview

Enable: Allows enabling the corresponding stream. However, the
stream will be generated only when the Enable TX - On/Off button is
at the On position when the test is started.
Note: The Individual stream can be enabled/disabled even when the test is
started and running. The streams can be enabled one after the other, up to
10, as long as the maximum rate is not reached. For example, if the first
stream is using the full rate available, then no other stream can be enabled.
However, if the first enabled stream uses half rate, then at least another
stream can be enabled using up to half rate. Thus, to enable a second
stream, first set the Maximum or TX rate value within the non-used rate,
then enable it. A stream cannot be enabled if its MAC address is not valid, it
can be either not resolved or wrongly entered.

Total Enabled TX Rate: Displays the total enabled rate that will be
generated by the selected streams.

Total Available TX Rate: Displays the total rate available for traffic
generation.

Unit choices are %, bps, Kbps, Mbps, Gbps, Bps, KBps, MBps, and
GBps. The default setting is %.