EXFO ETS-1000G - Manual (Page 69)

10 Gigabit Ethernet Analyzer 59
10 OAM
An important task of telecommunications service providers is to ensure a
high grade of administration and maintenance of Ethernet-based
networks. The IEEE 802.3ah standard was developed for that purpose [7]
(also known as Ethernet in the First Mile (EFM) OAM).
OAM (Operations, Administration, and Maintenance) is a link state
monitoring protocol that is implemented on the data link layer of the OSI
model. The transmission of information between Ethernet devices is
implemented using protocol data units (OAMPDU).
An important feature of the OAM protocol consists in providing an
opportunity of enabling the Loopback mode on a remote device.
To establish a connection between the ETS-1000G device and a
remote device over the OAM protocol and to enable the Loopback
mode, it is necessary to execute the following procedure:
1. Establish a direct connection between the local ETS-1000G de
vice and the
remote device according to the diagram shown below.
2. Enable the operation of the OAM protocol in the active or passive mode
on the remote device.
On the local device:
3. Open the OAM menu.
4. Select the active operating mode for the OAM protocol in the Mode
menu item.
5. The remote device detection status should be set to Send any in the
Discovery menu item.