{{short description|Proprietary networking protocol marketed by Cisco Systems}} {{Redirect|LRE}}
'''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).<ref>{{cite web |title= Long-Reach Ethernet: Introduction |work= Ethernet web technology support site |publisher= Cisco Systems |date= August 24, 2001 |url= http://www.cisco.com/en/US/tech/tk389/tk214/tk409/tsd_technology_support_sub-protocol_home.html |access-date= June 9, 2011 }}</ref> Supporting such distance ranges, LRE is technically classified as a Metropolitan area network (MAN) technology.<ref name="what">{{cite web |title= What is Cisco Long-Reach Ethernet Networking? |work= Cisco Systems web site |year= 2002 |url= http://www.cisco.com/warp/public/779/servpro/solutions/long_ethernet/ |url-status= dead |archive-url= https://web.archive.org/web/20071010021124/http://www.cisco.com/warp/public/779/servpro/solutions/long_ethernet/ |archive-date= October 10, 2007 |access-date= June 9, 2011 }}</ref> 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.
== Description== Like standard VDSL, LRE allowed existing telephone wiring that connects an organization's offices to be used to network those offices together using standard Ethernet protocol without incurring the huge cost of deploying fiber-optic cable or limiting organizations to the bandwidth provided by modems or other digital subscriber line services.
Other sample applications included Internet access to hotel rooms or college dormitories over existing installed telephone wiring.
LRE was compatible with VDSL ETSI Band Plan 998.<!-- what is that?? -->
Cisco sold Cisco Catalyst model 2900 switches<ref>{{cite web |title= Cisco Catalyst 2900 Series LRE XL Switches: Cisco Long-Reach Ethernet Solution |work= Cisco Systems web site |url= http://www.cisco.com/en/US/products/hw/switches/ps605/products_data_sheet09186a0080088894.html |access-date= June 9, 2011}}</ref> using Infineon Technologies PEF22822/PEB22811 VDSL QAM chipset like many other VDSL concentrators.{{citation needed |date= August 2011}} The customer-premises equipment included the Cisco 575 desktop bridge.<ref>{{cite news |title=Swisscom Cisco 575 LRE Customer Premise Equipment - bridge |date=April 22, 2003 |work= CNET news |url=http://www.cnet.com/products/cisco-575-lre-customer-premise-equipment-bridge-desktop/ |access-date=August 28, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20160507112035if_/http://www.cnet.com/products/cisco-575-lre-customer-premise-equipment-bridge-desktop/ |archive-date=May 7, 2016 }}</ref> Products were announced in February 2001 to be available in April 2001.<ref>{{cite news |title= Cisco Offers New Long-Reach Ethernet: No new wiring needed; system uses existing phone lines |work= PC World |author= James Evans |date= February 20, 2001 |url= http://www.pcworld.com/article/42082/cisco_offers_new_longreach_ethernet.html |access-date= August 28, 2011 |url-status= dead |archive-url= https://web.archive.org/web/20100120164801/http://www.pcworld.com/article/42082/cisco_offers_new_longreach_ethernet.html |archive-date= January 20, 2010 }}</ref> Infineon used the name '''10BaseS''' for the technology,<ref>{{cite news|url=http://www.infineon.com/cms/en/corporate/press/news/releases/2001/130817.html|title=Infineon Announces Second Quarter Results|date=April 24, 2001|work=News release|access-date=August 28, 2011|publisher=Infineon Technologies|quote=...strategic design-win with Cisco for new long range Ethernet products incorporating Infineon's 10BaseS technology}}</ref>
Cisco included LRE in its Mobile Office marketing effort.<ref>{{cite news |title= Swisscom Mobile chooses Cisco for broadband PWLAN technology |date= July 4, 2002 |publisher= Telecompaper |url= http://www.telecompaper.com/news/swisscom-mobile-chooses-cisco-for-broadband-pwlan-technology |access-date= August 28, 2011 }}</ref> A few compatible devices were produced.<ref>{{cite web |title= Product Specification: Ethernet over VSDL Converter VC-102M / VC-202S |date= May 27, 2003 |publisher= Planet Networking and Communication |author= Alan Huang |url= http://www.planet.com.ru/en/product/images/11852/PS-VC102.pdf |access-date= August 28, 2011 |archive-url= https://web.archive.org/web/20120331094524/http://www.planet.com.ru/en/product/images/11852/PS-VC102.pdf |archive-date= March 31, 2012 |url-status= dead }}</ref> Cisco announced end-of-sale for the LRE products in October 2006, and its explanation page was removed from their web site in 2007.<ref name="what"/>
HomePNA promotes similar technologies for use within a home rather than to a central office or business, with its 2.0, 3.0, and 3.1 releases. Different frequency bands are used so that VDSL and HomePNA can share the same wires.<ref>{{cite web |title= HomePNA - the Global Standard Over Coax and Phone Lines |publisher= CopperGate |url= http://www.copper-gate.com/solutions/homepna/technology/ |access-date= August 28, 2011 }}</ref>
==References== {{Reflist}}
== External links == *[https://web.archive.org/web/20080423221510/http://www.metanoia.com.tw/ Metanoia communications Inc. Taiwan] produced products called EVA Award and EVA Aero
{{Ethernet}} {{DSL technologies}}
Category:Ethernet Category:Cisco protocols Category:Digital subscriber line