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Network Functions Virtualization
Network functions virtualization (NFV) is a network architecture concept that leverages IT virtualization technologies to virtualize entire classes of network node functions into building blocks that may connect, or chain together, to create and deliver communication services. NFV relies upon traditional server-virtualization techniques such as those used in enterprise IT. A virtualized network function, or VNF, is implemented within one or more virtual machines or containers running different software and processes, on top of commercial off the shelf (COTS) high-volume servers, switches and storage devices, or even cloud computing infrastructure, instead of having custom hardware appliances for each network function thereby avoiding vendor lock-in. For example, a virtual session border controller could be deployed to protect a network without the typical cost and complexity of obtaining and installing physical network protection units. Other examples of NFV include virtualized lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Architecture
Network architecture is the design of a computer network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as communication protocols used. In telecommunications, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated. The network architecture of the Internet is predominantly expressed by its use of the Internet protocol suite, rather than a specific model for interconnecting networks or nodes in the network, or the usage of specific types of hardware links. OSI model The Open Systems Interconnection model (OSI model) defines and codifies the concept of layered network architecture. Abstraction layers are used to subdivide a communications system further into smaller man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darmstadt, Germany
Darmstadt () is a city in the state of Hesse in Germany, located in the southern part of the Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the fourth largest city in the state of Hesse after Frankfurt am Main, Wiesbaden, and Kassel. Darmstadt holds the official title "City of Science" () as it is a major centre of scientific institutions, universities, and high-technology companies. The European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and the European Space Agency's European Space Operations Centre (ESA ESOC) are located in Darmstadt, as well as GSI Centre for Heavy Ion Research, where several chemical elements such as bohrium (1981), meitnerium (1982), hassium (1984), darmstadtium (1994), roentgenium (1994), and copernicium (1996) were discovered. The existence of the following elements was also confirmed at GSI Centre for Heavy Ion Research: nihonium (2012), flerovium (2009), moscoviu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of United States cities by population, third-most populous city in the United States after New York City and Los Angeles. As the county seat, seat of Cook County, Illinois, Cook County, the List of the most populous counties in the United States, second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a Chicago Portage, portage between the Great Lakes and the Mississippi River, Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortinet
Fortinet, Inc. is an American cybersecurity company with headquarters in Sunnyvale, California. The company develops and sells security solutions like firewalls, endpoint security and intrusion detection systems. Fortinet has offices located all over the world. Brothers Ken Xie and Michael Xie founded Fortinet in 2000. The company's first and main product was FortiGate, a physical firewall. The company later added wireless access points, sandbox and messaging security. The company went public in November 2009. History Early history In 2000, Ken Xie and his brother Michael Xie co-founded Appligation, Inc., which they renamed ApSecure and finally Fortinet (from the phrase "Fortified Networks"). Fortinet introduced its first product, FortiGate, in 2002, followed by anti-spam and anti-virus software. The company raised $13 million in private funding from 2000 to early 2003. Fortinet's first channel program was established in October 2003. The company began distributing it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAD Data Communications
RAD Data Communications Ltd. is a privately held corporation, headquartered in Tel Aviv, Israel that designs and manufacturers specialized networking equipment. RAD is a member of the $1.3 billion RAD Group of companies. History RAD was founded by brothers Yehuda and Zohar Zisapel in 1981 as a spin-off from Bynet, a networking hardware distribution company founded by Yehuda in 1973. Their goal was to develop their own products; the company was simply named RAD, for Research And Development. RAD first successful product was a miniature (by 1980s standards) modem for telephone lines that did not require a separate power source. This novel concept quickly became a commercial success, and by 1985, RAD annual revenues reached $5.5 million. This initial product line evolved into RAD Data Communications, the largest company within the RAD Group. In 2014, RAD opened a new $32 million advanced R&D center for developing NFV and SDN solutions in the southern Israeli city of Beershe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyan, Inc
Cyan, Inc., doing business as Cyan Worlds, is an American video game developer and publisher based in Mead, Washington. Founded by brothers Rand and Robyn Miller in 1987, the company created the ''Myst'' series. ''Myst'' became the best-selling PC game ever made when it was released in 1993, and remained so for several years afterwards. It spawned several sequels, including ''Riven'' and the massively multiplayer online adventure '' Myst Online: Uru Live''. Before ''Myst'', the company created children's games such as '' The Manhole''. In 2016, they released the Kickstarter-funded game ''Obduction'' and in 2023, they released ''Firmament'', also funded with Kickstarter. As of 2024, Cyan is the oldest surviving independent game studio in the United States. History Pre-''Myst'' (1987–1992) Cyan was founded in 1987 by brothers Rand and Robyn Miller, operating out of their parents' basement in their Spokane, Washington home. Rand had been programming games as a junior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proof Of Concept
A proof of concept (POC or PoC), also known as proof of principle, is an inchoate realization of a certain idea or method in order to demonstrate its feasibility or viability. A proof of concept is usually small and may or may not be complete, but aims to demonstrate in principle that the concept has practical potential without needing to fully develop it. A proof of value (PoV) is sometimes used along proof of concept, and differs by focusing more on demonstrating the potential customer use case and value, and is usually less in-depth than a proof of concept. Usage history The term has been in use since 1967. In a 1969 hearing of the Committee on Science and Astronautics, Subcommittee on Advanced Research and Technology, ''proof of concept'' was defined as following: One definition of the term "proof of concept" was by Bruce Carsten in the context of a "proof-of-concept prototype" in his magazine column "Carsten's Corner" (1989): The column also provided definitions fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP Multimedia Subsystem
The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is a standardised architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit-switched-style network, rather than strictly over an IP packet-switched network. Various voice over IP technologies are available on smartphones; IMS provides a standard protocol across vendors. IMS was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), as a part of the vision for evolving mobile networks beyond GSM. Its original formulation (3GPP Rel-5) represented an approach for delivering Internet services over GPRS. This vision was later updated by 3GPP, 3GPP2 and ETSI TISPAN by requiring support of networks other than GPRS, such as Wireless LAN, CDMA2000 and fixed lines. IMS uses IETF protocols wherever possible, e.g., the Session Initiation Protocol (SIP). According to the 3GPP, IMS is not inten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VMware VSphere
VMware vSphere (formerly VMware Infrastructure 4) is VMware's cloud computing virtualization platform. It includes vCenter Configuration Manager, as well as vCenter Application Discovery Manager, and the ability of vMotion to move more than one virtual machine at a time from one host server to another. On February 12, 2024, VMware owner Broadcom discontinued general availability of vSphere Hypervisor free edition. Releases * On February 10, 2011 VMware released Update 1 for vSphere 4.1 to add support for RHEL 6, RHEL 5.6, SLES 11 SP1 for VMware, Ubuntu Ubuntu ( ) is a Linux distribution based on Debian and composed primarily of free and open-source software. Developed by the British company Canonical (company), Canonical and a community of contributors under a Meritocracy, meritocratic gover ... 10.10, and Solaris 10 Update 9. * On July 12, 2011, VMware released version 5 of VMware vSphere. * On August 27, 2012, VMware released vSphere 5.1. This extended vSphere t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Session Border Controller
A session border controller (SBC) is a network element deployed to protect SIP based voice over Internet Protocol (VoIP) networks. Early deployments of SBCs were focused on the borders between two service provider networks in a peering environment. This role has now expanded to include significant deployments between a service provider's access network and a backbone network to provide service to residential and/or enterprise customers. The term "session" refers to a communication between two or more parties – in the context of telephony, this would be a call. Each call consists of one or more call signaling message exchanges that control the call, and one or more call media streams which carry the call's audio, video, or other data along with information of call statistics and quality. Together, these streams make up a session. It is the job of a session border controller to exert influence over the data flows of sessions. The term "border" refers to a point of demarcation b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Interface Controller
A network interface controller (NIC, also known as a network interface card, network adapter, LAN adapter and physical network interface) is a computer hardware component that connects a computer to a computer network. Early network interface controllers were commonly implemented on expansion cards that plugged into a computer bus. The low cost and ubiquity of the Ethernet standard means that most newer computers have a network interface built into the motherboard, or is contained into a USB-connected dongle, although network cards remain available. Modern network interface controllers offer advanced features such as interrupt and Direct memory access, DMA interfaces to the host processors, support for multiple receive and transmit queues, partitioning into multiple logical interfaces, and on-controller network traffic processing such as the TCP offload engine. Purpose The network controller implements the electronic circuitry required to communicate using a specific physica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchestration (computing)
In system administration, orchestration is the automated configuration, coordination, deployment, development, and management of computer systems and software. Many tools exist to automate server configuration and management. Usage Orchestration is often discussed in the context of service-oriented architecture, virtualization, provisioning, converged infrastructure and dynamic data center topics. Orchestration in this sense is about aligning the business request with the applications, data, and infrastructure. In the context of cloud computing, the main difference between workflow automation and orchestration is that workflows are processed and completed as processes within a single domain for automation purposes, whereas orchestration includes a workflow and provides a directed action towards larger goals and objectives. In this context, and with the overall aim to achieve specific goals and objectives (described through the quality of service parameters), for example, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
