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  2. Network topology - Wikipedia

    en.wikipedia.org/wiki/Network_topology

    Network topology is the topological [4] structure of a network and may be depicted physically or logically. It is an application of graph theory [3] wherein communicating devices are modeled as nodes and the connections between the devices are modeled as links or lines between the nodes. Physical topology is the placement of the various ...

  3. Class-4 telephone switch - Wikipedia

    en.wikipedia.org/wiki/Class-4_telephone_switch

    The Lucent 4ESS is a digital switch widely used as a class-4 switch in the United States. It was developed by AT&T's Western Electric division, before that division was spun off as Lucent. The first 4ESS was installed in Chicago in 1976. The last 4ESS in the AT&T Long Lines network was installed in 1999. [4] In the late 2010s and early 2020s ...

  4. Arista Networks - Wikipedia

    en.wikipedia.org/wiki/Arista_Networks

    Arista Networks, Inc. (formerly Arastra) is an American computer networking company headquartered in Santa Clara, California. The company designs and sells multilayer network switches to deliver software-defined networking (SDN) for large datacenter , cloud computing , high-performance computing , and high-frequency trading environments.

  5. Open vSwitch - Wikipedia

    en.wikipedia.org/wiki/Open_vSwitch

    Open vSwitch is a software implementation of a virtual multilayer network switch, designed to enable effective network automation through programmatic extensions, while supporting standard management interfaces and protocols such as NetFlow, sFlow, SPAN, RSPAN, CLI, LACP and 802.1ag. In addition, Open vSwitch is designed to support transparent ...

  6. Circuit switching - Wikipedia

    en.wikipedia.org/wiki/Circuit_switching

    Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel ( circuit) through the network before the nodes may communicate. The circuit guarantees the full bandwidth of the channel and remains connected for the duration of the communication session. [1]

  7. Star network - Wikipedia

    en.wikipedia.org/wiki/Star_network

    Star topology in use in a network. A star network is an implementation of a spoke–hub distribution paradigm in computer networks. In a star network, every host is connected to a central hub. In its simplest form, one central hub acts as a conduit to transmit messages. [1] The star network is one of the most common computer network topologies .

  8. List of networking hardware vendors - Wikipedia

    en.wikipedia.org/wiki/List_of_Networking...

    Allied Telesis. Arista Networks. Avaya - acquired Nortel. Buffalo Technology. Brocade Communications Systems - acquired Foundry Networks - was acquired by Ruckus Networks, An ARRIS company and Extreme Networks. Ciena. Cisco Systems. Control4 - acquired by SnapAV. Dell Networking.

  9. Packet switching - Wikipedia

    en.wikipedia.org/wiki/Packet_switching

    In telecommunications, packet switching is a method of grouping data into packets that are transmitted over a digital network. Packets are made of a header and a payload. Data in the header is used by networking hardware to direct the packet to its destination, where the payload is extracted and used by an operating system, application software ...

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