"LRE" redirects here. For other uses, see LRE (disambiguation).
Long Reach Ethernet (LRE) was a proprietary networking protocol marketed by Cisco Systems, intended to support multi-megabit (5 to 15 Mbit/s) performance over telephone-grade unshielded twisted pair wiring over distances up to 5,000 feet (1.5 km).[1]
Supporting such distance ranges, LRE is technically classified as a Metropolitan area network (MAN) technology.[2]
Technically the protocol was similar to very-high-bitrate digital subscriber line (VDSL), practically Ethernet over VDSL (EoVDSL).
The technology was sometimes considered an example of Ethernet in the first mile (EFM).
Several networking vendors offered compatible networking hardware, but the technology became obsolete.
^"Long-Reach Ethernet: Introduction". Ethernet web technology support site. Cisco Systems. August 24, 2001. Retrieved June 9, 2011.
^"What is Cisco Long-Reach Ethernet Networking?". Cisco Systems web site. 2002. Archived from the original on October 10, 2007. Retrieved June 9, 2011.
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