Use of Ethernet between a telecommunications company and a customer's premises
Ethernet in the first mile (EFM) refers to using one of the Ethernet family of computer network technologies between a telecommunications company and a customer's premises. From the customer's point of view, it is their first mile, although from the access network's point of view it is known as the last mile.
A working group of the Institute of Electrical and Electronics Engineers (IEEE) produced the standards known as IEEE 802.3ah-2004, which were later included in the overall standard IEEE 802.3-2008. EFM is often used in active optical network deployments.[1]
Although it is often used for businesses, it can also be known as Ethernet to the home (ETTH). One family of standards known as Ethernet passive optical network (EPON) uses a passive optical network.
^Wang, K.; Mas Machuca, C.; Wosinska, L.; Urban, P. J.; Gavler, A.; Brunnström, K.; Chen, J. (2017). "Techno-Economic Analysis of Active Optical Network Migration Toward Next-Generation Optical Access". Journal of Optical Communications and Networking. 9 (4): 327. doi:10.1364/JOCN.9.000327. S2CID 18604241.
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