EXFO FTB-800 Series for FTB-1 - Manual (Page 229)

Test Setup - Test Configurator, Timer, and System
NetBlazer 219
Smart Loopback
S-OAM Responder
The S-OAM Responder check box when selected (default) allows to
respond to LBM, LTM, DMM, LMM, and SLM valid messages (test running or
not). Traffic statistics are also monitored (refer to Responder on page 381).
Respond to... message Respond with... message
LBM LBR
LTM LTR
DMM DMR
LMM LMR
SLM SLR