EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 105)

Test Setup - Test Configurator, Timer, and System
Power Blazer 93
Modify Structure Button

Loopback Mode
Note: Only available for Smart Loopback Ethernet test application.
Transparent (Pseudo-Physical) check box when selected (cleared by
default), determines that the Smart Loopback operates as a physical
loopback by transmitting all received frames unaltered and without
discrimination. When the check box is cleared, the Loopback mode is
selectable from Loopback on page 224.
In transparent mode, the Network tab and the Ping & Trace Route
functions are not available.
Note: The Transparent mode is intended to be used for point-to-point topology;
not for switched or routed networks. Use the Transparent mode with
caution because all received frames are looped back without
discrimination.

Topology allows the selection of the network test topology:
Single Port (default) or Dual Port. Dual Port is only available with
EtherSAM and RFC 2544 for rates up to 10G LAN.

OAM Type
Note: Only available for Carrier Ethernet OAM test application.
Selects the type of Carrier OAM network: Ethernet OAM (S-OAM;
default) or MPLS-TP OAM.