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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Introduction to EFM

Introduction to EFM

EFM effectively improves Ethernet management and maintenance capabilities and ensures the stable operation of networks.

Easy-to-use Ethernet techniques support good bandwidth extensibility on low-cost hardware. With these advantages, Ethernet services and structures are the first choice for many enterprise networks. The increasing popularity of Ethernet applications encourages operators to use improved Ethernet OAM functions to maintain and operate Ethernet networks.

Figure 11-91 Networking diagram for EFM

As shown in the Figure 11-91, Ethernet in the First Mile (EFM) is a type of link-level OAM technology and defines the specifications of the Ethernet physical layer and OAM used for user accesslinks between the access layer and aggregation layer. EFM provides link connectivity detection, link fault monitoring, and remote loopback for a link between two directly connected devices.

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Updated: 2019-08-09

Document ID: EDOC1000041694

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