CTC Union FTH4-1000MS, User Manual

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3.6 Remote Settings
When 802.3ah is active in both the local and remote unit (with fiber connection), the in-band management provides an embedded channel
to control and configure the remote by using OAM (layer 2) Ethernet packets. The same settings available to the local unit are available under
the
Remote Setting menu, with the exception of password setting.
3.7 802.3ah OAM Functions
This converter supports IEEE 802.3ah, an OAM protocol that operates at Ethernet Layer 2 (Data Link layer). OAM provides mechanisms to
monitor link operation / health and to improve fault isolation. OAM only works point-to-point over the fiber link. In addition to standard 802.3ah
functions like loop back and dying gasp,
this converter also implements OAM to provide complete provisioning of the remote fiber connected
converter, without using Layer 3 IP protocol. By using OAM, we can remotely manage another fiber connected converter, without IP
addressing. From this menu we can also perform some basic diagnostics, such as loop back test.