EXFO ETS-1000 - Manual (Page 85)

Configuring and Starting a Test
Ethernet Tester Analyzer 77
OAM
OAM
An important task for service providers is to provide high quality of
administrating and maintenance for Ethernet-networks. To regulate these
tasks the IEEE 802.3ah
[8] standard (also known as Ethernet in the First
Mile (EFM) OAM) was worked out.
OAM (Operations, Administration, and Maintenance) is a protocol of
monitoring the link state. The protocol operates at the Data Link Layer of
OSI model. To transmit data between two Ethernet-units, OAM protocol
data units (OAMPDU) are used. Both unit should support the IEEE 802.3ah
standard and should be connected directly.
An important feature of the OAM protocol is providing the ability to use
Loopback mode for the remote end.

Port: Select a Port for OAM configuring.