A10E/A28E/A28F Configuration Guide
Figure 8-1 OAM classification
Complied with IEEE 802.3ah protocol, Ethernet in the First Mile (EFM) is a link-level
Ethernet OAM technology. It provides the link connectivity detection, link fault monitor, and
remote fault notification, etc. for a link between two directly connected devices.
"The first mile" in EFM is the connection between local device of telecom operator and client
device. The target is that Ethernet technology will be extended to access network market of
telecom users, in order to improve network performance, and reduce cost of device and
running. EFM is mainly used in Ethernet link of user access network edge.
The A10E/A28E provides EFM with IEEE 802.3ah standard.
8.1.2 Preparing for configurations
Scenario
Deploying EFM between directly connected devices can effectively improve the management
and maintenance capability of Ethernet links and ensure network running smoothly.
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