Browse Definitions :

High-speed networks

Terms related to high-speed communication networks, including network and end-system architecture definitions and words and phrases about high-bandwidth and low-latency communication.

100 - WIR

  • 100 Gigabit Ethernet (100GbE) - 100 Gigabit Ethernet (100GbE) is a standard in development that will enable the transfer of Ethernet frames at 100 gigabits per second (gp/s).
  • 1xRTT (Single-Carrier Radio Transmission Technology) - 1xRTT (Single-Carrier Radio Transmission Technology) is an operational mode for CDMA2000 wireless communications that specifies a single (1x) 1.
  • 5G NR (new radio) - 5G NR (new radio) is a set of standards that replace the LTE network 4G wireless communications standard.
  • 6to4 - 6to4 is a tunneling mechanism used to transfer IPv6 (Internet Protocol version 6) packets over an IPv4 infrastructure, typically the IPv4 Internet.
  • ATM (asynchronous transfer mode) - ATM (asynchronous transfer mode) is a dedicated-connection switching technology that organizes digital data into 53-byte cell units and transmits them over a physical medium using digital signal technology.
  • bandwidth - Bandwidth is the capacity of a wired or wireless network communications link to transmit the maximum amount of data from one point to another over a computer network or internet connection in a given amount of time -- usually one second.
  • beamforming - Beamforming is a type of RF (radio frequency) management in which an access point uses multiple antennas to send out the same signal.
  • broadband - In general, broadband refers to telecommunication in which a wide band of frequencies is available to transmit information.
  • Broadband Integrated Services Digital Network (BISDN) - BISDN is both a concept and a set of services and developing standards for integrating digital transmission services in a broadband network of fiber optic and radio media.
  • Broadband Technology Opportunities Program (BTOP) - The Broadband Technology Opportunities Program (BTOP) is an initiative within the American Recovery and Reinvestment Act (ARRA) created to promote the development and adoption of broadband throughout the United States, particularly in unserved and underserved areas.
  • build your own broadband (BYOB) - Build your own broadband (BYOB) is a community- or individual-driven initiative to lay foundations for high-speed internet, instead of the work being performed by a traditional internet service provider (ISP) or government.
  • Carrier Ethernet - Carrier Ethernet is the use of high-bandwidth Ethernet technology for Internet access and for communication among business, academic and government local area networks (LANs).
  • carrier network - A carrier network is the proprietary network infrastructure belonging to a telecommunications service provider such as Verizon, AT&T or Sprint.
  • CDDI (Copper Distributed Data Interface) - For a local area network (LAN), CDDI (Copper Distributed Data Interface) is a standard for data transmission based on FDDI (Fiber Distributed Data Interface) that uses shielded twisted-pair (STP) or unshielded twisted pair (UTP) copper wire instead of fiber optic lines.
  • comfort noise generator (CNG) - A comfort noise generator (CNG) is a program used to generate background noise artificially for voice communications during periods of silence that occur during the course of conversation.
  • CRC-4 (Cyclic Redundancy Check 4) - CRC-4 (Cyclic Redundancy Check 4) is a form of cyclic redundancy checking (a method of checking for errors in transmitted data) that is used on E-1 trunk lines.
  • dark fiber - Dark fiber is optical fiber infrastructure (cabling and repeaters) that is currently in place but is not being used.
  • data streaming - Data streaming is the continuous transfer of data at a steady, high-speed rate.
  • dense wavelength division multiplexing (DWDM) - Dense wavelength division multiplexing (DWDM) is a technology that puts together -- multiplexes -- data signals from different sources so they can share a single optical fiber pair while maintaining complete separation of the data streams.
  • destreaming - Destreaming, in a multimedia context, is the practice of saving streamed data as a file.
  • DOCSIS (Data Over Cable Service Interface Specifications) - Now known as CableLabs Certified Cable Modems, DOCSIS (Data Over Cable Service Interface Specifications) is a standard interface for cable modems, the devices that handle incoming and outgoing data signals between a cable TV operator and a personal or business computer or television set.
  • DSLAM (Digital Subscriber Line Access Multiplexer) - A DSLAM (Digital Subscriber Line Access Multiplexer) is a network device, usually at a telephone company central office, that receives signals from multiple customer Digital Subscriber Line (DSL) connections and puts the signals on a high-speed backbone line using multiplexing techniques.
  • DTTV (digital terrestrial television) - DTTV (digital terrestrial television, sometimes also abbreviated DTT) is digital television (DTV) broadcast entirely over earthbound circuits.
  • erbium amplifier - An erbium amplifier, also called optical amplifier or an erbium-doped fiber amplifier or EDFA, is an optical or IR repeater that amplifies a modulated laser beam directly, without opto-electronic and electro-optical conversion.
  • Ethernet as a service (EaaS) - Ethernet as a service (EaaS) is the use of high-bandwidth, fiber optic media such as Packet over SONET (PoS) to deliver 10 Mbps, 100 Mbps or even 1000 Mbps Ethernet service to one or more customers across a common bidirectional broadband infrastructure.
  • Ethernet point-of-presence (EPOP) - Ethernet point-of-presence (EPOP) is a technology developed by Level 3 Communications that provides widespread access to broadband networks.
  • FDDI (Fiber Distributed Data Interface) - FDDI (Fiber Distributed Data Interface) is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network (LAN) that can extend in range up to 200 km (124 miles).
  • fiber optics (optical fiber) - Fiber optics, or optical fiber, refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic strand or fiber.
  • fiber to the curb (FTTC) - Fiber to the curb (FTTC) refers to the installation and use of optical fiber cable directly to the curbs near homes or any business environment as a replacement for "plain old telephone service" (POTS).
  • fiber to the home (FTTH) - Fiber to the home (FTTH), also called fiber to the premises (FTTP), is the installation and use of optical fiber from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access.
  • fiber to the x (FTTx) - Fiber to the x (FTTx) is a collective term for various optical fiber delivery topologies that are categorized according to where the fiber terminates.
  • fractional T1 - A fractional T1 or T3 line is a T1 or T3 digital phone line in the North American T-carrier system that is leased to a customer at a fraction of its data-carrying capacity and at a correspondingly lower cost.
  • free-space optics (FSO) - Free-space optics (FSO), also called free-space photonics (FSP), refers to the transmission of modulated visible or infrared (IR) beams through the atmosphere to obtain broadband communications.
  • G.703 - G.703 is a CCITT standard for transmitting voice over digital carriers such as T1 and E1.
  • gigabit Ethernet phone (gigE phone) - A gigabit Ethernet phone, or gigE phone, is a VoIP telephone that connects to and uses gigabit Ethernet transmission technology to communicate with other phones.
  • gigabit interface converter (GBIC) - A gigabit interface converter (GBIC) is a transceiver that converts electric currents (digital highs and lows) to optical signals, and optical signals to digital electric currents.
  • Google Fiber - Google Fiber is a project whose goal is to build a fiber optic communications infrastructure.
  • HDSL (High bit-rate Digital Subscriber Line) - Also see our Fast guide to DSL.
  • High-Speed Serial Interface (HSSI) - High-Speed Serial Interface (HSSI) is a short-distance communications interface that is commonly used to interconnect routing and switching devices on local area networks (LANs) with the higher-speed lines of a wide area network (WAN).
  • hop off - Hop off is a term used in telecommunications that refers to a point at which a signal or call leaves a network and moves to another network.
  • hundred call second or centum call second (CCS) - The hundred call second -- also known as the centum call second (CCS) -- is a unit of telecommunications traffic density that is the equivalent of one call (including call attempts and holding time) in a specific channel for 100 seconds in an hour.
  • hyperconnectivity - Hyperconnectivity is a state of unified communications (UC) in which the traffic-handling capacity and bandwidth of a network always exceed the demand.
  • integrated T1 (channelized T1) - Integrated T1 (also called channelized T is a digital carrier modulation method in which a T1 line is divided into 24 channels, each having a maximum data speed of 64 thousand bits per second (Kbps), and each capable of supporting a unique application that can run concurrently with, but independently of, other applications on different channels.
  • interconnection - Interconnection is a strategy for ensuring that businesses can privately, securely and directly exchange digital information.
  • Internet metering - Internet metering is a service model in which an Internet service provider (ISP) tracks the customer's use of bandwidth and charges accordingly.
  • IPTV (Internet Protocol television) - IPTV (Internet Protocol television) is a service that provides television programming and other video content using the TCP/IP protocol suite as opposed to traditional cable or satellite signals.
  • long-haul optics - Long-haul optics refers to the transmission of visible light signals over optical fiber cable for great distances, especially without or with minimal use of repeaters.
  • LTE (Long Term Evolution) - Long Term Evolution (LTE) is a standard for 4G wireless broadband technology that offers increased network capacity and speed to mobile device users.
  • Microsoft Assessment and Planning (MAP) Toolkit - Microsoft Assessment and Planning (MAP) Toolkit is a free utility IT can use to determine whether or not its infrastructure is prepared for a migration to a new operating system, server version or cloud-based deployment.
  • MiFi - MiFi is a portable broadband device that allows multiple end users and mobile devices to share a 3G or 4G mobile broadband Internet connection and create an ad-hoc network.
  • mobile Internet device (MID) - A mobile Internet device (MID) is a handheld device that is larger than a smartphone but smaller than a netbook.
  • MOSPF (Multicast Open Shortest Path First) - MOSPF (Multicast Open Shortest Path First) is an extension to the OSPF (Open Shortest Path First) protocol that facilitates interoperation between unicast and multicast routers.
  • multi-carrier modulation (MCM) - Multi-carrier modulation (MCM) is a method of transmitting data by splitting it into several components, and sending each of these components over separate carrier signals.
  • Multimedia Home Platform (MHP) - Multimedia Home Platform (MHP) is a digital video broadcasting (DVB) standard intended to combine digital television (DTV) with the Internet and the World Wide Web.
  • network coding - Network coding is a method of optimizing the flow of digital data in a network by transmitting digital evidence about messages.
  • network convergence - Network convergence is the efficient coexistence of telephone, video and data communication within a single network.
  • network protocols - Network protocols are sets of established rules that dictate how to format, transmit and receive data so computer network devices -- from servers and routers to endpoints -- can communicate regardless of the differences in their underlying infrastructures, designs or standards.
  • OC-768 - OC-768 is currently the fastest synchronous optical network (SONET) standard rate for data transmission on optical fiber as part of the broadband ISDN (BISDN).
  • Optical Carrier levels (OCx) - The Synchronous Optical Network (SONET) includes a set of signal rate multiples for transmitting digital signals on optical fiber.
  • P4P (proactive provider participation for P2P) - P4P (proactive provider participation for P2P) is a protocol designed to improve the use of available bandwidth in a P2P network by reducing the overall volume of traffic.
  • phase-change cooling (vapor cooling) - Phase-change cooling, also called vapor cooling, is a microprocessor-cooling technology that works according to the same principles as a conventional refrigerator, freezer or air conditioner.
  • progressive download - A progressive download is a process that allows the user to access content before the data transfer is complete.
  • Q signaling (QSIG) - Q signaling (abbreviated QSIG), a protocol for Integrated Services Digital Network (ISDN) communications based on the Q.
  • Q.931 - Q.931 (also called Q93 is a signaling protocol for Integrated Services Digital Network (ISDN) communications that is used in voice over IP (VoIP).
  • radio access network (RAN) - A radio access network (RAN) is the part of a telecommunications system that connects individual devices to other parts of a network through radio connections.
  • real-time communications (RTC) - Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.
  • satellite Internet connection - A satellite Internet connection is an arrangement in which the upstream (outgoing) and the downstream (incoming) data are sent from, and arrive at, a computer through a satellite.
  • SDH (Synchronous Digital Hierarchy) - SDH (Synchronous Digital Hierarchy) is a standard technology for synchronous data transmission on optical media.
  • Serial Digital Interface (SDI) - Serial Digital Interface (SDI) is a standard for digital video transmission over coaxial cable.
  • small cell - Small cell is an overarching term for wireless network base stations with a low radio frequency power output, footprint and range.
  • small form factor (SFF) - Small form factor (SFF) refers to any of several physically compact connector designs that have been developed for use in fiber optic systems.
  • small form-factor pluggable (SFP) - Small form-factor pluggable (SFP) is a specification for a new generation of optical modular transceivers.
  • Squid proxy server - Squid is a Unix-based proxy server that caches Internet content closer to a requestor than its original point of origin.
  • StarBand - StarBand is a broadband Internet service provider (ISP) that uses geostationary satellites to provide always-on connection independent of other media.
  • switched virtual circuit (SVC) - In a network, a switched virtual circuit (SVC) is a temporary virtual circuit that is established and maintained only for the duration of a data transfer session.
  • T-carrier system - To see the relationship between T-carrier, E-carrier, and DS0 multiples, see digital signal X.
  • T1 (T-1) - Also see the T-carrier system, of which the T1 is a part.
  • TCP/IP offload engine (TOE) - The TCP/IP offload engine (TOE for short) is a technology that is gaining popularity in high-speed Ethernet systems for the purpose of optimizing throughput.
  • TD-SCDMA (time division synchronous code division multiple access) - TD-SCDMA (time division synchronous code division multiple access) is a mobile telephone standard for wireless network operators who want to move from a second generation (2G) wireless network to a third-generation (3G) one.
  • ternary content-addressable memory (TCAM) - Ternary content-addressable memory (TCAM) is a specialized type of high-speed memory that searches its entire contents in a single clock cycle, with the term “ternary” referring to its ability to store and query data using three different inputs: 0, 1 and X.
  • Top searches of 2008 - What were people searching the WhatIs.
  • Toslink - Toslink is a connector format for fiber optic digital audio cables.
  • Tsunami UDP - Tsunami UDP is an open source file transfer protocol that enables high-speed data transfer over network paths with a large bandwidth delay product.
  • Verizon Communications v. Federal Communications Commission (2014) - Verizon Communications v.
  • vertical cavity surface emitting laser (VCSEL) - A vertical cavity surface emitting laser (VCSEL) is a specialized laser diode that promises to revolutionize fiber optic communications by improving efficiency and increasing data speed.
  • video telephony - Video telephony is full-duplex, real-time audio-visual communication between or among end users.
  • virtual phone number - A virtual phone number is a telephone number is used to route calls to the user's actual phone number or numbers.
  • weighted fair queueing (WFQ) - Weighted fair queueing (WFQ) is a method of automatically smoothing out the flow of data in packet-switched communication networks by sorting packets to minimize the average latency and prevent exaggerated discrepancies between the transmission efficiency afforded to narrowband versus broadband signals.
  • Wide Area Ethernet (WAE) - Wide Area Ethernet (WAE) or Ethernet WAN (also sometimes referred to as fiber or LAN extension service ) is a network carrier service that delivers high-speed wide area network (WAN) connectivity, utilizing Ethernet as the connection method.
  • wideband - Wideband is a transmission medium or channel that has a wider bandwidth than one voice channel (with a carrier wave of a certain modulated frequency).
  • wireless broadband (WiBB) - Wireless broadband is high-speed Internet and data service delivered through a wireless local area network (WLAN) or wide area network (WWAN).

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