Use mdy dates date September 2011 Image Ethernet RJ45 connector p1160054.jpg thumb An 8P8C 8P8C modular ... 5 cable s in Ethernet networks Ethernet IPAc en icon i r n t is a family of computer network ... 802.3 , Ethernet has largely replaced competing wired LAN technologies. Systems communicating over Ethernet divide a stream of data into individual packets called Frame networking frame s. Each frame ... 10BASE5 Ethernet used coaxial cable as a shared medium . Later the coaxial cables were replaced by twisted pair and optical fiber fiber optic links in conjunction with Ethernet hub hubs or Ethernet switch ... gigabits per second. Since its commercial release, Ethernet has retained a good degree of compatibility. Features such as the 48 bit MAC address and Ethernet frame format have influenced other networking protocols. History Ethernet was developed at Xerox PARC between 1973 and 1974. ref name metcalfe video cite video url http www.youtube.com watch?v g5MezxMcRmk title The History of Ethernet publisher ... collections object.cfm?key 35&objkey 96 title Ethernet Prototype Circuit Board date 1973 publisher ... Boggs year 1976 month July title Ethernet Distributed Packet Switching for Local Computer Networks ... doi 10.1145 360248.360253 ref tag ref The experimental Ethernet described in the 1976 paper ran at 2.94 Mbit s and had eight bit destination and source address fields, so the original Ethernet addresses were not the MAC address es they are today. ref cite journal title Evolution of the Ethernet ... types could vary within each different protocol, rather than the packet type in the current Ethernet ... to work together to promote Ethernet as a standard. The so called DIX standard, for Digital Intel Xerox specified 10 Mbit s Ethernet, with 48 bit destination and source addresses and a global 16 bit Ethertype type field. It was published on September 30, 1980 as The Ethernet, A Local Area Network ... papers EthernetSpec.pdf date 30 September 1980 title The Ethernet, A Local Area Network ... more details
The Ethernet Alliance was incorporated in the state of California in August 2005 and officially launched in January 2006 as a global non profit industry consortium to promote and support Ethernet . The objectives ... the development of standards that support Ethernet technology and to bring together the Ethernet industry to collaborate on the future of the technology. The Ethernet Alliance is a member driven organization of Ethernet end users, system and component vendors, industry experts, and university and government professionals who are committed to the continued success and expansion of Ethernet. The Ethernet ... are focused on efforts around specific standards based Ethernet initiatives. These standards can be developed in any Ethernet standards body, including but not limited to the Institute ... by members as those specific Ethernet technology areas where work needs to be done to help ... subcommittees within the Ethernet Alliance included 10G EPON focuses on the support of IEEE ... 2006 which defined a specification for running 10 Gigabit Ethernet over twisted pair copper designated 10GBASE T. Carrier Ethernet helps guide work being done to support the specific, evolving and growing demands of Ethernet from carriers and service providers. Energy Efficient Ethernet EEE work is largely based up EEE Std. 802.3az 2010. Ethernet in the Data Center focus includes protocols such as Data Center Bridging DCB , Fibre Channel over Ethernet FCoE , iSCSI , RDMA over Converged Ethernet RoCE and iWARP . Higher Speed Ethernet HSE encompasses all aspects of 40 Gb s and 100 Gb s Ethernet ..., and then to share that information via a white paper with Ethernet Alliance members and standards bodies. Power over Ethernet PoE and Power over Ethernet Plus PoE promotes the current capabilities ... resiliency capabilities of IEEE802.3at in the Ethernet community. High Speed HS Modular Interconnects ... devices and ports including optical modules and copper cables. History In previous Ethernet ... more details
File Siemens ESM TP80.JPG thumb right Industrial Ethernet Hub Industrial Ethernet IE refers to the use of the Ethernet family of computer network technologies in an industrial engineering industrial environment, for automation and process control . A number of techniques are used to adapt Ethernet for the needs ... standard Ethernet, automation systems from different manufacturers can be interconnected throughout a process plant. Industrial Ethernet takes advantage of the relatively larger marketplace for computer interconnections using Ethernet to reduce cost and improve performance of communications between ... Ethernet as the link layer protocol, with one of the above protocols as the application layer as in the OSI ... Gbit s with Gigabit Ethernet over Category 5 cable Cat5e Category 6 cable Cat6 cables or optical fiber ... slave ones Better interoperability Difficulties of using Industrial Ethernet include Migrating existing ... data The minimum Fast Ethernet frame size including inter frame spacing is about 80 bytes, while typical ... efficiency of less than 5 , negating any advantages of the higher bitrate. On Gigabit Ethernet ... Ethernet protocols introduce modifications to the Ethernet protocol to improve efficiency. Protocols Although the use of Ethernet standardizes the physical transport of data in an industrial setting, multiple different incompatible protocols are used and encapsulated into Ethernet data ... protocol encapsulated in each Ethernet frame, but source and consumer devices must use the same protocol ... versions and converted to a form that can be transmitted over an Ethernet network. For example, Profibus has been developed into an Ethernet compatible standard, PROFINET . Other protocols, such as EtherNet IP have been developed only for the Ethernet transport layer. Industrial network ... Editor , IAONA Handbook Industrial Ethernet, Industrial Automation Open Networking Alliance e.V., 150 ... http www.industrial ethernet.org Industrial Ethernet Advisory Group http www.lammermann.eu wb pages ... more details
Terabit Ethernet or 1TbE is a phrase used in current media to describe the next possible speed of Ethernet above 100 Gigabit Ethernet speeds. Facebook and Google are a few companies that have expressed ... of Terabit Ethernet 83504497.html title Facebook Dreams of Terabit Ethernet date Feb. 3, 2010 work HPCwire publisher Tabor Communications, Inc. ref Some think that 400 Gigabit Ethernet is a more ... Aim for Terabit Ethernet? work Light Reading publisher UBM TechWeb, first Craig last Matsumoto date Mar. 5, 2010 ref The current reporting is that the target date for Terabit Ethernet is 2015, and talk of 100 Terabit Ethernet by 2020. ref cite web title UCSB s Professor Daniel Blumenthal to Address the Road to Terabit Ethernet at the Ethernet Technology Summit date 18 Feb 2011 publisher University ... Inc. NYSE VZ to help with the research. ref cite web title The Terabit Ethernet Chase Begins author ... of the major players are still struggling to get 10 gigabit Ethernet prices down. 100 gigabit is still ... 802.3 Industry Connections Ethernet Bandwidth Assessment Ad Hoc, to investigate the business needs ... the first half of 2012. ref cite web title IEEE Seeks Data on Ethernet Bandwidth Needs author Stephen ... ieee seeks data on ethernet bandwidth needs.html accessdate 15 Dec 2011 ref ref cite web title Terabit Ethernet could be on its way publisher Perle author Max Burkhalter Brafton date 12 May 2011 url http www.perle.com articles Terabit Ethernet could be on its way 800506465.shtml accessdate 15 Dec 2011 ref See also Ethernet Alliance 10 Gigabit Ethernet 100 Gigabit Ethernet Optical interconnect Interconnect ... Further reading cite web title Researchers to develop 1 Terabit Ethernet by 2015 publisher ... ethernet by 2015 2397 accessdate 9 Oct 2011 cite web title Speed matters how Ethernet went from ... url http arstechnica.com gadgets news 2011 07 ethernet how does it work.ars 1 accessdate 9 Oct 2011 cite news title IEEE Looks beyond 100G Ethernet publisher The Cutting Edge author Rick Merritt date ... more details
Multiple issues refimprove February 2009 jargon November 2009 Merge Metro Ethernet date June 2009 Carrier Ethernet is a marketing term for extensions to Ethernet to enable telecommunications network providers common carriers in US industry jargon to provide Ethernet services to customers and to utilize Ethernet technology in their networks. Background Ethernet has a long history. It has become dominant ... have allowed extremely low cost per bit. Likewise Ethernet has a long history of re inventing itself ... to increase, traditionally growing tenfold each time a new rate is defined. Gigabit Ethernet interfaces ... up to 100 Gigabit Ethernet were standardized in 2010 and 2011. ref name ab cite web title IEEE P802.3ba 40Gb s and 100Gb s Ethernet Task Force url http www.ieee802.org 3 ba publisher IEEE 802 work ... s Ethernet Task Force http ieee802.org 3 ba ref ref IEEE P802.3bg 40G SMF PMD for Carrier Client Task Force http www.ieee802.org 3 40GSMF ref Ethernet s dominance is partly attributed to the simple ... to access higher speed devices than contemporary Ethernet connected devices handled at an affordable ... been to drive down the price of comparable speed Ethernet devices. Once this purpose is achieved, competing standards tend to disappear or be confined to very specialized niches. Ethernet is a fairly ... are being added to IEEE 802.3 Ethernet to support IEEE 802.1 audio video bridging AVB , ref IEEE ... connected to wide area telecommunications networks over Ethernet interfaces or to devices that bridge DSL or wireless to these. Moreover, customers are familiar with the capabilities of Ethernet ... with Ethernet services To make use of the volume and cost advantages of Ethernet technologies in their networks To replace non Ethernet technologies with Ethernet competitors that have sufficient ... to Quality of Service QoS . The Beginning Metro Ethernet The MEF was formed in 2001 in order ... and cost model of Ethernet to the wide area network. ref name MEF cite web url http metroethernetforum.org ... more details
Multiple issues cleanup spam August 2010 refimprove August 2007 context October 2009 EtherNet IP Ethernet ... automation applications. Description EtherNet IP is an application layer protocol treating devices on the network as a series of objects . EtherNet IP is built on the Common Industrial Protocol CIP , for access to objects from ControlNet and DeviceNet networks. EtherNet IP uses Ethernet physical layer network infrastructure. EtherNet IP can be implemented in software on a microprocessor. No special ... s FPGAs are required. EtherNet IP is built on the TCP IP protocols. EtherNet IP can be used in automation networks which can tolerate some amount of non determinism. This is because Ethernet physical media might not have deterministic delays. EtherNet IP can be easily confused as a simple combination of Ethernet and the Internet Protocol . Instead, it is an industrial application layer protocol ... automation controller , programmable logic controller or an I O system. The IP in EtherNet IP, is not an abbreviation for Internet Protocol but instead stands for Industrial Protocol . History EtherNet IP was developed in the late 1990s by Rockwell Automation as part of Rockwell s industrial Ethernet networking solutions. With little or no input taken from other ODVA members, Rockwell gave EtherNet ... that utilize the protocol are developed. Today, When date December 2011 EtherNet IP is most commonly ... , have developed programmable automation controllers and I O capable of communicating via EtherNet IP. Schneider Electric developed an EtherNet IP cards for PLC Quantum, Premium and M340 on the Unity Platform. Details EtherNet IP classifies Ethernet nodes as predefined device types with specific behaviors ... , one to many multicast , and one to all broadcast communication via TCP. EtherNet IP makes use ... The EtherNet IP application layer protocol is based on the Common Industrial Protocol CIP standard used in DeviceNet, CompoNet and ControlNet. EtherNet IP was promoted as an open technology, so ... more details
Ethernet Exchange is a physical network infrastructure through which Ethernet service providers, carriers and Internet service providers exchange Ethernet traffic between their networks. The Ethernet exchange was created as a neutral meeting place where wireless carriers can connect to multiple Ethernet services in several markets that need access to specific locations though one connection. As service providers and operators continue to grow, they need a network to support the increasing amount of Data and video on mobile networks. Thus, allowing Ethernet sellers connecting to an Ethernet exchange immediate access to the buyers and a more basic technical process. Ethernet exchanges offer an accelerated system for carriers and worldwide service providers to extend market reach and coverage. Many carriers and service providers have adopted this technology due to the refined administration features and lower costs when compared to older wholesale Ethernet interconnectivity solutions. References See http en.wikipedia.org wiki Wikipedia Footnotes on how to create references using ref ref tags which will then appear here automatically Reflist Cite web url http www.expereo.com en services title Expereo starts Global Ethernet eXchange GEX . publisher Alphons Mulders accessdate January, 1st, 2011 last first Cite web url http www.fiercetelecom.com story mef standardization drives development ethernet business services 2010 06 21 title MEF standardization drives development of Ethernet ... document.asp?doc id 192767 title Telx Adds an Ethernet Exchange publisher Craig Matsumoto ... 04 12 equinix launches carrier ethernet exchange title Equinix Launches Carrier Ethernet Exchange ... story neutral tandem enters ethernet exchange fray 2010 02 18 title Neutral Tandem enters the Ethernet ... 2009 11 cenx joins ethernet exchange party title CENX Joins Ethernet Exchange ... index.php compu network stub Categories Category Ethernet Category Network topology ... more details
No footnotes date February 2009 Merge Carrier Ethernet date June 2009 COI date May 2010 A Metro Ethernet is a computer network that covers a metropolitan area and that is based on the Ethernet standard ... service network or the Internet . Businesses can also use Metro Ethernet to connect branch offices to their Intranet . Ethernet has been a well known technology for decades. An Ethernet interface ... PDH interface of the same bandwidth. Ethernet also supports high bandwidths with fine granularity ... advantage of an Ethernet based access network is that it can be easily connected to the customer network, due to the prevalent use of Ethernet in corporate and, more recently, residential networks. Therefore, bringing Ethernet in to the Metropolitan Area Network MAN introduces a lot of advantages ... June 2009 Image Optical Metro 5200.jpg 300px thumb right Metro Ethernet system A typical service provider Metro Ethernet network is a collection of Layer 2 or and Network Layer Layer 3 Network switch ... to newer forms of Ethernet Transport in the form of 10Gbit s, 100 Gigabit Ethernet 40Gbit s or 100Gbit s speeds. Ethernet on the MAN can be used as pure Ethernet, Ethernet over SDH , Ethernet over Multiprotocol Label Switching MPLS or Ethernet over DWDM . Pure Ethernet based deployments are cheap ... s Access, Aggregation Distribution, Metro, and Core. ref cite web title Carrier Ethernet Services ... point to point Ethernet over home run Fiber to the x Direct fiber direct fibre . This part of the network ... or central office cabinet, Ethernet in the First Mile equipment, or provider bridges. A Metro Area .... Much of the functionality of Metro Ethernet such as Virtual Private Line or Virtual Private LAN is implemented by the use of Ethernet VLAN tags that allow differentiation of each part of the network ... Ethernet MANs A pure Ethernet MAN uses only layer 2 switches for all of its internal structure. This allows .... The original Ethernet technology was not well suited for service provider applications as a shared ... more details
G.8262 Y.1362 is an ITU T recommendation for Synchronous Ethernet that defines timing characteristics of synchronous Ethernet equipment slave clock EEC . ref name g8262 cite web title G.8262 Timing characteristics of a synchronous Ethernet equipment slave clock date July 2010 publisher International Telecommunication Union url http www.itu.int rec T REC G.8262 ref It was first published in August 2007, amended in 2008 and 2010, and a new version published in 2010. ref name g8262 Unlike time division multiplexing TDM networks, the Ethernet family of computer network s do not carry clock synchronization information. Several means are defined to address this issue. IETF s Network Time Protocol , Precision Time Protocol IEEE 1588 are some of them. Carrier Ethernet services prefer synchronized clocks to fit into traditional synchronous optical networking systems, known as the Synchronous Digital Hierarchy SDH . ref cite news title An introduction to Synchronized Ethernet author Slobodan Milijevic date March 3, 2009 publisher EE Times url http www.eetimes.com design embedded 4008244 An introduction to Synchronized Ethernet accessdate July 9, 2011 ref Another protocol with the Synchronous Ethernet name was proposed in 2003 with the IEEE 1394 project. ref cite web title Synchronous Ethernet Specification 0.39 author Pioneer and Gibson work IEEE 1394 group date November 10, 2003 url http grouper.ieee.org groups 1394 c 20031216 Sync Ethernet 039a draft.pdf accessdate July 9, 2011 ref It was intended for use in consumer electronics. ref cite web title Synchronous Ethernet Overview author John Gildred work IEEE 1394 group presentation date November 21, 2003 url http grouper.ieee.org groups 1394 c 20031216 synce overview.pdf accessdate July 9, 2011 ref This proposal was not adopted, but led ... Residential Ethernet IEEE802.3 Call for Interest work IEEE 802.3 Residential Ethernet study group ... ref References Reflist Ethernet Compu network stub Category Ethernet Category Network protocols ... more details
A data packet on an Ethernet link is called an Ethernet frame . A frame begins with Preamble and Start Frame Delimiter. Following which, each Ethernet frame continues with an Ethernet header featuring ... sniffing software because these bits are stripped away at OSI Layer 1 by the Ethernet adapter ... Ethernet frame, as transmitted, for the maximum transmission unit MTU of 1500 octet computing ... as bit strings, with the first bit transmitted on the left not as byte values, which in Ethernet are transmitted ... of Gigabit Ethernet and higher speeds support larger jumbo frame s. class wikitable style text align center 802.3 Ethernet frame structure Preamble Start of frame delimiter MAC destination MAC source 802.1Q tag optional Ethertype Ethernet II Ethernet II or length IEEE 802.3 Payload Frame ... Frame Delimiter SFD is the octet value marking the end of the preamble of an Ethernet frame. The SFD ... of an Ethernet frame consists of a 7 octet pattern of alternating 1 and 0 bits, which allows devices ... differences between DIX V2.0 Ethernet 2 & IEEE 802.3 in the frame format. Header The header ... field and optional IEEE 802.1Q tag. EtherType or Length This is a two octet field in an Ethernet frame. It is used to indicate which protocol is encapsulated in the Payload of an Ethernet Frame ... multiple access with collision detection collision detection in the Ethernet LAN architecture. ref ... state before transmitting the next frame. Ethernet frame types There are several types of Ethernet ... on the same physical medium. The Ethernet Version 2 ref group note A version 1 Ethernet frame was used for early Ethernet prototypes and featured 8 bit MAC addresses and was never commercially deployed. ref or Ethernet II frame or DIX frame is the most common type in use today, as it is often ... 802.2 Logical Link Control LLC frame Subnetwork Access Protocol SNAP frame In addition, all four Ethernet ... described above. Ethernet II Ethernet II framing also known as DIX Ethernet , named after Digital ... more details
unreferenced date June 2011 Ethernet Powerlink is a Deterministic algorithm deterministic real time protocol computing protocol for standard Ethernet . It is an open protocol managed by the Ethernet POWERLINK Standardization Group EPSG . It was introduced by Austrian automation company B&R in 2001. This protocol has nothing to do with power distribution via Ethernet cabling or power over Ethernet PoE , power line communication or Bang & Olufsen Bang & Olufsens PowerLink cable. Overview Ethernet Powerlink expands Ethernet with a mixed polling and timeslicing mechanism. This Guaranteed transfer of time critical data in very short isochronic cycles with configurable response time Time synchronisation of all nodes in the network with very high precision of sub microseconds Transmission of less ... by the Ethernet Powerlink Standardization Group EPSG , founded in June 2003 as an independent association ... X Fast Ethernet IEEE 802.3 . Since the end of 2006, Ethernet Powerlink with Gigabit Ethernet supported ... within the Real time domain is recommended to minimise delay and jitter. Ethernet Powerlink uses IAONA s Industrial Ethernet Planning and Installation Guide for clean cabling of industrial networks and both industrial Ethernet connectors 8P8C commonly known as RJ45 and M1 are accepted. Data Link Layer The standard Ethernet Data Link Layer is extended by an additional bus scheduling mechanism which ... on older Ethernet hubs before switches. The Carrier Sense Multiple Access CSMA CD mechanism of non switched Ethernet, which caused non deterministic Ethernet behaviour, is avoided by the Ethernet ... on existing transport layers. External links http www.ethernet powerlink.org ethernet powerlink.org Ethernet POWERLINK Standardization Group website http sourceforge.net projects openpowerlink sourceforge.net ... Ethernet Category Industrial Ethernet Category Automation Category Industrial computing Category Industrial automation ca Ethernet Powerlink de Ethernet Powerlink es Ethernet POWERLINK fr POWERLINK ... more details
In computer network ing, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit s, against the original Ethernet speed of 10 Mbit s. Of the fast Ethernet standards 100BASE TX is by far the most common and is supported by the vast majority of Ethernet hardware currently produced. Fast Ethernet was introduced in 1995 ref http ... ref and remained the fastest version of Ethernet for three years before being superseded by gigabit Ethernet . ref http ieeexplore.ieee.org xpls abs all.jsp?isnumber 15117&arnumber 690946&count 11&index 0 The 802.3z Gigabit Ethernet Standard was published ref General design Fast Ethernet is an extension of the existing EthernetEthernet standard . It runs on UTP cable UTP data or optical fiber ... plug and play upgrades from 10BASE T. Fast Ethernet is sometimes referred to as 100BASE X where ... signalling, which means that only Ethernet signals are carried on the medium. The TX , FX and T4 refer to the physical medium that carries the signal. A fast Ethernet adapter can be logically divided ... it. The MII fixes the theoretical maximum data bit rate for all versions of fast Ethernet to 100 ... card 100BASE T is any of several Fast Ethernet standards for twisted pair cable s, including 100BASE ... 100 m ft 0 as with 10BASE T and gigabit Ethernet . All are or were standards under IEEE 802.3 approved 1995 . Almost all 100BASE T installations are 100BASE TX. In the early days of Fast Ethernet, much ... met the assumed standards, because 10 megabit Ethernet was very tolerant of minor deviations from specified ... and connection quality if Ethernet worked over a cable, it was deemed acceptable. Thus most networks ... 60px Pair 4 Wire 2 brown 100BASE TX is the predominant form of Fast Ethernet, and runs over ... . Alternatively it is possible to connect two devices directly using a Ethernet crossover cable ... noted below. section 25.2 of IEEE802.3 2002 . ref 100BASE T4 This section is linked from Ethernet ... more details
network ing, Gigabit Ethernet GbE or 1 GigE is a term describing various technologies for transmitting Ethernet frame s at a rate of a Data rate units Gigabit per second gigabit per second 1,000,000,000 ... in 1999, gradually supplanting Fast Ethernet in wired local networks where it performed considerably ... through Ethernet hub hub s are allowed by the specification, ref A single repeater per collision ... 1970s, Ethernet evolved into a widely implemented Physical layer physical and Data link layer link OSI model layer protocol. Fast Ethernet increased speed from 10 to 100 megabits per second Mbit s . Gigabit Ethernet was the next iteration, increasing the speed to 1000 Mbit s. The initial standard for gigabit Ethernet was produced by the IEEE in June 1998 as IEEE 802.3z , and required optical fiber ... ZX. IEEE 802.3ab , ratified in 1999, defines gigabit Ethernet transmission over Shielded cable unshielded ... known as 1000BASE T. With the ratification of 802.3ab, gigabit Ethernet became a desktop technology ... specific extension and 1000BASE BX10. This was part of a larger group of protocols known as Ethernet in the First Mile . Initially, gigabit Ethernet was deployed in high capacity backbone network ... Macintosh G4 Gigabit Ethernet publisher apple history.com accessdate 2007 11 05 ref It quickly ... 2011 Higher bandwidth 10 Gigabit Ethernet standards have since become available as the IEEE ratified a fiber based standard in 2002, and a twisted pair standard in 2006. As of 2009 10Gb Ethernet is replacing ... needed date October 2010 Varieties There are five physical layer standards for gigabit Ethernet using ... transmission over twisted pair. Ethernet in the First Mile later added 1000BASE LX10 and BX10. class ... X is used in industry to refer to gigabit Ethernet transmission over fiber, where options include 1000BASE .... 1000BASE CX 1000BASE CX is an initial standard for gigabit Ethernet connections over twinaxial ... the IBM BladeCenter uses 1000BASE CX for the Ethernet connections between the blade servers and the switch ... more details
Image 4 port netgear ethernet hub.jpg thumb 300px 4 port Ethernet hub An Ethernet hub , active hub , network hub , repeater hub or hub is a device for connecting multiple Ethernet devices together and making them act as a single network segment . A hub works at the physical layer layer 1 of the OSI model . ref name networkingtext The device is a form of multiport repeater . Repeater hubs also participate in collision detection, forwarding a jam signal to all ports if it detects a collision telecommunications ... device in comparison with, for example, a Ethernet switch switch . A hub does not examine ... and the total size of a network built using hubs a network built using Ethernet switch switches does .... ref cite book url http www.ethermanage.com ethernet ch13 ora ch13.html title Ethernet The Definitive ... through Ethernet cables, but even so, a large fast Ethernet network is likely to require switches ... it from the shared medium. Thus, hub based Ethernet over twisted pair twisted pair Ethernet is generally more robust than coaxial cable based Ethernet e.g. 10BASE2 , where a misbehaving device can ... Ethernet frame s, regenerates the electrical signal on the bit more precisely the symbol data symbol ... segment Ethernet and an 802.5 segment Token Ring or a 10 MBit s segment to 100 MBit s Ethernet. Dual speed hub other articles and redirects link here In the early days of fast Ethernet, Ethernet ... Mbit s segment, as appropriate. This prevented the need for an all or nothing migration fast Ethernet ... to modern Ethernet by using an AUI 10BASE T transceiver . See also Network switch References reflist External links http wiki.wireshark.org HubReference Hub Reference DEFAULTSORT Ethernet Hub Category Ethernet Category Networking hardware ast Amestador az Hab bn bg bs Hub ca Concentrador ... eo Koncentrilo eu Kontzentratzaile fa fr Hub Ethernet gl Concentrador ko hi ... pt Concentrador ru sk Rozbo ova ethernet sr fi Keskitin ... more details
An Ethernet extender also network extender or LAN extender is any device used to extend an Ethernet or network segment beyond its inherent distance limitation which is approximately Convert 100 m for most common forms of twisted pair Ethernet . These devices employ a variety of transmission technologies and physical media wireless, copper wire, fiber optic cable, coaxial cable . The extender forwards traffic between LAN s transparent to higher network layer Communications protocol protocols over distances that far exceed the limitations of standard Ethernet. Options Extenders that use copper wire include 2 and 4 wire variants using unconditioned copper wiring to extend a LAN s. Network extenders use various methods line encodings , such as TC PAM , 2B1Q or Discrete multitone modulation DMT , to transmit information. While transmitting over copper wire does not allow for the speeds that fiber optic transmission does, it allows the use of existing voice grade copper or CCTV coaxial cable wiring. Copper based Ethernet extenders must be used on unconditioned wire without load coil s , such as unused twisted pairs and alarm circuit s. Connecting a private LAN between buildings or more distant locations is a challenge. Wi Fi requires a clear line of sight, special antennas, and is subject to weather. If the buildings are within 100m, a normal Ethernet cable segment can be used, with due consideration of potential grounding problems between the locations. Up to 200m, it may be possible to set up an ordinary Ethernet bridge or router in the middle, if power and weather protection can be arranged. Fiber optic connection is ideal, allowing connections of over a km and high speeds with no electrical ... LRE Long Reach Ethernet , Patton CopperLink or EtherWAN Ethernet Extenders using VDSL ... as Ethernet in the first mile 2BASE TL Full duplex long reach Point to point communication telecommunications ... stub Category Local loop Category Ethernet ... more details
multiple issues context June 2011 notability June 2011 unreferenced June 2011 E Tree or Ethernet Virtual Private Tree is a Point to MultiPoint Ethernet Virtual Connection defined by the Metro Ethernet Forum an Ethernet VLAN configuration suitable for multicast services. Other types of Ethernet Virtual Connection EVC defined for Carrier Ethernet networking are the Ethernet Virtual Private Line E Line and E LAN . Category Ethernet ... more details
merge to Ethernet Private Line date February 2011 Ethernet Virtual Private Line EVPL is a data service defined by the Metro Ethernet Forum , providing a point to point Ethernet connection between a pair of User network interface s UNIs . EVPL service is specified using an E Line service type, very similar to a Ethernet Private Line EPL service, via a point to point Ethernet Virtual Connection EVC . However, unlike EPL, EVPL allows for Service Multiplexing, i.e., multiple EVCs or Ethernet services per UNI. The other difference between the EVPL and EPL is the degree of transparency while EPL is highly transparent, filtering only the Pause frame s, EVPL is required to either peer or drop most of the Layer 2 Control Protocols . See also Ethernet Private Line Pseudo wire Virtual Leased Line Carrier Ethernet Metro Ethernet Forum Ethernet Virtual Connection Ethernet Virtual Private LAN Ethernet Virtual Private Tree External links PPTlink http metroethernetforum.org PPT Documents Carrier Ethernet Services Overview.ppt Carrier Ethernet Services overview 1742 KiB DOClink http metroethernetforum.org pdfs standards mef6.doc MEF 6 472 KiB Metro Ethernet Services Definitions Phase I DOClink http metroethernetforum.org pdfs standards mef10.1.doc MEF 10.1 1720 KiB Ethernet Services Attributes Phase 2 compu network stub Category Ethernet Category Network protocols Category Data transmission ... more details
multiple issues context June 2011 notability June 2011 unreferenced June 2011 E LAN or Ethernet Virtual Private LAN EVP LAN is a MultiPoint to MultiPoint Ethernet Virtual Connection defined by the Metro Ethernet Forum a Carrier Ethernet equivalent of Virtual Private LAN Service VPLS or Transparent LAN Services . E LAN s typically have a distance limitation of less than 50 miles. Other types of Ethernet Virtual Connection EVC defined for Carrier Ethernet networking are the Ethernet Virtual Private Line E Line and E Tree . Category Ethernet ... more details
Multiple issues orphan April 2010 onesource March 2010 refimprove March 2010 wikify January 2011 Notability Products date March 2010 TIME Ethernet LAN is a telecommunication service that allows geographically dispersed sites to share an Ethernet broadcast domain offered by TIME dotCom Berhad in Malaysia. According to their website at http www.time.com.my http www.time.com.my , TIME Ethernet LAN is a way to provide Ethernet based multipoint to multipoint communication over IP MPLS networks. It also lets users use bandwidth more efficiently than point to point connectivity, creating the appearance of all their sites on a single Ethernet access circuit. ref name TMLANN http www.time.com.my TIME dotCom ref History Previously known as Metro LAN, TIME dotCom change the name to TIME Ethernet LAN by the end of 2009. However, there are no information on when TIME dotCom launched this service. Availability Similar to TIME Ethernet Leased Line , the service are only available in buildings on TIME s Metro Ethernet Network, which TIME dotCom call these Metro Ethernet RFS Ready For Service buildings. References Reflist External links http www.time.com.my http www.time.com.my DEFAULTSORT Time Ethernet Lan Category Internet companies of Malaysia ... more details
merge from Ethernet Virtual Private Line date February 2011 Ethernet Private Line EPL is a data service defined by the Metro Ethernet Forum , providing a point to point Ethernet Virtual Connection EVC between a pair of dedicated User network interface s UNIs , with a high degree of transparency. EPL service is categorized as an E Line service type, with an expectation of low Frame Delay , Frame Delay Variation and Frame Loss Ratio . EPL is implemented using a point to point EVC with no Service Multiplexing at each UNI physical interface , i.e., all service frames at the UNI are mapped to a single EVC a.k.a. All to one bundling . Due to a high degree of transparency, EPL is often used to provide point to point Transparent LAN Service TLS , where the Service Frame s header and payload are identical at both the source and destination UNI. Some implementations tunnel most Ethernet Layer 2 Control Protocols L2CPs except for some link layer L2CPs such as IEEE 802.3x Pause frame s. See also Ethernet Virtual Private Line Ethernet Virtual Connection External links PDFlink http www.metroethernetforum.org PDF Documents metro ethernet services.pdf Metro Ethernet Services A Technical Overview PPTlink http metroethernetforum.org PPT Documents Carrier Ethernet Services Overview.ppt Carrier Ethernet Services overview 1742 KiB DOClink http metroethernetforum.org pdfs standards mef6.doc MEF 6 472 KiB Metro Ethernet Services Definitions Phase I DOClink http metroethernetforum.org pdfs standards mef10.1.doc MEF 10.1 1720 KiB Ethernet Services Attributes Phase 2 compu network stub Category Ethernet Category Network protocols Category Data transmission ... more details
Ethernet over PDH or EoPDH is one of many techniques that provided Ethernet connectivity over non Ethernet networks. Specifically, EoPDH is a standardized methodology for transporting native Ethernet frames over the existing telecommunications copper infrastructure by leveraging the established Plesiochronous Digital Hierarchy PDH transport technology. EoPDH is one of several Ethernet transport technologies that enables Telephone company Telecommunication Service Providers to offer Carrier Ethernet services. Also commonly used as a means of connecting businesses to a Metro Ethernet network. EoPDH is based on a collection of technologies and standards that allow telecommunications telephone company Carriers to make use of their extensive networks of legacy PDH and SONET SDH Synchronous Digital Hierarchy equipment to provide new Ethernet services. In addition, the collection of EoPDH standards provide for interoperability and the gradual migration of Carriers to Ethernet networks. General Description EoPDH is a standardized methodology for transporting native Ethernet frames over Plesiochronous Digital Hierarchy PDH links such as Digital Signal 1 T1 , E carrier E1 , or Digital Signal 3 DS3 . The technologies used in EoPDH include Generic Framing Procedure GFP frame Encapsulation networking encapsulation , Ethernet Mapping, virtual concatenation Virtual Concatenation , LCAS Link Capacity Adjustment Scheme , and Management Messaging http www.rad.com RADCnt MediaServer 21878 EthOAM WP.pdf OAM . Common practices in EoPDH equipment also include the tagging of traffic for separation ... functions ITU T Y.1731 OAM functions and mechanisms See also Ethernet over SONET and Ethernet over SDH EoPoS Ethernet over PDH over SONET SDH Packet over SONET SDH Metro Ethernet External links http www.maxim ic.com appnotes.cfm appnote number 3849 CMP WP 39 Ethernet over PDH Technology Overview ... EoPDH.aspx Flash clip explaining EoPDH and EoPDH Equipment Category Ethernet Category SONET ... more details
The Metro Ethernet Forum MEF , founded in 2001, is a nonprofit international industry consortium , dedicated to worldwide adoption of Carrier Ethernet networks and services. align right TOC The forum is composed ... vendors, and other networking companies that share an interest in Metro Ethernet . It had 160 members ... of Metro Ethernet. This is a key differentiator from other standard bodies such as the Internet ... by the Ethernet in the First Mile Alliance EFMA , also a nonprofit international industry consortium ... Launches Ethernet Alliance , Light Reading , December 11, 2001 ref to promote standards based Ethernet ..., the EFMA became part of the Metro Ethernet Forum. ref http www.lightreading.com document.asp?doc id ... provide a comprehensive technical overview of Ethernet services, based on the work of the Metro Ethernet Forum Technical Committee. The papers are intended to help buyers and users of Ethernet services ... communicate their capabilities. ref http www.metroethernetforum.org PDF Documents metro ethernet services.pdf Metro Ethernet Services A Technical Overview ref Technical specifications As of March 2011 ...?p id 29 full list MEF 2 Requirements and Framework for Ethernet Service Protection MEF 3 Circuit Emulation Service Definitions, Framework and Requirements in Metro Ethernet Networks MEF 4 Metro Ethernet Network Architecture Framework Part 1 Generic Framework MEF 6.1 Metro Ethernet Services Definitions ... over Metro Ethernet Networks MEF 9 Abstract Test Suite for Ethernet Services at the UNI MEF 10.2 Ethernet ... Metro Ethernet Network Architecture Framework Part 2 Ethernet Services Layer MEF 13 User Network ... 1 MEF 15 Requirements for Management of Metro Ethernet Phase 1 Network Elements MEF 16 Ethernet Local ... Tunnel Access and Virtual UNI MEF 29 Ethernet Services Constructs MEF 30 Service OAM Fault Management ... www.metroethernetforum.org Metro Ethernet Forum Ethernet Category Consortia Category Metropolitan area networks Category Computer network organizations Category Standards organizations Category Ethernet ... more details
Ethernet Global Data EGD is a protocol that enables producer server to share a portion of its memory to all the consumers clients at a scheduled periodic rate. This protocol is developed for GE Fanuc Automation North America, Inc. GE Fanuc Programmable logic controller PLC s to exchange data between PLCs GE Drive Systems GE HMI systems. The protocol uses User Datagram Protocol UDP over Ethernet layers for exchanging the data. A snapshot of internal reference memory, mediated by an Ethernet interface, is referred to as an exchange. An exchange does not require a reply and is identified by a unique combination of three major identifiers. The Producer ID the producer s IP address The Exchange ID the exchange s identifier The Adapter Name the Ethernet interface identifier External Links http geplc.com downloads Labs GFS 384 20M09 20EGD.pdf EGD Objectives List of Automation Protocols Category Automation Category Industrial computing Category Industrial Ethernet Category Industrial automation ... more details
Unreferenced date December 2009 Ethernet Over SDH EoS or EoSDH or Ethernet over SONET refers to a set of protocols which allow Ethernet traffic to be carried over Synchronous Digital Hierarchy synchronous digital hierarchy networks in an efficient and flexible way. The same functions are available using SONET a predominantly North American standard . Ethernet frames which are to be sent on the SDH link are sent through an encapsulation block typically Generic Framing Procedure or GFP to create a synchronous stream of data from the asynchronous Ethernet packets. The synchronous stream of encapsulated data is then passed through a mapping block which typically uses virtual concatenation VCAT to route the stream of bits over one or more SDH paths. As this is byte interleaved, it provides a better level of security compared to other mechanisms for Ethernet transport. Citation needed date October ... the synchronous data stream to an asynchronous stream of Ethernet frames. The SDH paths ... Mbit s Ethernet link is often transported over a VC 12 5v which allows the full bandwidth to be carried for all packet sizes. A 100 Mbit s Ethernet link is often transported over a VC 3 2v which allows the full bandwidth to be carried when smaller packets are used 250 bytes and Ethernet flow control .... A 1000 Mbit s or 1 GigE Ethernet link is often transported over a VC 3 21v or a VC 4 7v which allows ... SPE align center High Order align center X x 149.76 X 1 to 256 EoS also drops the idle packets of the Ethernet frame before encapsulating the Ethernet frame to GFP, which is recreated at the other end during decapsulation process. Hence this provide a better throughput compared to native Ethernet transport ... should not be used to carry traffic. See also Packet over SONET DEFAULTSORT Ethernet Over Sdh Category Ethernet Category SONET Category Network protocols es Ethernet sobre SDH SONET it Ethernet over SDH pl Ethernet over SDH ... more details
and standard task force Energy Efficient Ethernet is a set of enhancements to the twisted pair and backplane Ethernet family of computer network ing standards that will allow for less power consumption ... url http blog.internetnews.com skerner 2009 07 energy efficient ethernet hits.html title Energy Efficient Ethernet hits standards milestone InternetNews The Blog Sean Michael Kerner work Internetnews ... for Ethernet before the standard was ratified, using the name Green Ethernet . Potential savings main ... Cite news url http spectrum.ieee.org computing networks energyefficient ethernet work IEEE SpectrumEnergy Efficient EthernetEthernet connections waste lots of watts. It need not be so author Prachi Patel Predd title Energy Efficient Ethernet publisher Spectrum.ieee.org date May 2008 accessdate July 5, 2011 ref According to a researcher at the Lawrence Berkeley Laboratory , Energy Efficient Ethernet ... in May 2007. ref cite web title IEEE 802.3 Energy Efficient Ethernet Study Group url http www.ieee802.org ... reduction is accomplished in a few ways. In nowrap Fast Ethernet 100 Mbit s , gigabit ethernet 1 gigabit and nowrap 10 Gigabit Ethernet 10 Gbit s speed data links energy is used to keep the Ethernet ... electronics news 4076984 Energy efficient Ethernet standard gains traction title Energy efficient Ethernet standard gains traction work EE Times date May 8, 2008 author Rick Merritt accessdate July ... to Ethernet over twisted pair , which reduces power supplies required for each interface. ref Cite ... Efficient Ethernet in the Works work GoodCleanTech blog publisher Ziff Davis date September 4, 2008 ... consumption. ref citation title Configuration System Avaya Ethernet Routing Switch 5000 publisher ... was finalized. AES can also control the utilization of Power over Ethernet Power over Ethernet ... of the low priority power over ethernet devices. The Avaya Unified Communications Management ... or not send PoE power and each port reducing the consumption of power at each port. Green Ethernet ... more details
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