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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.
A physical extended star topology in which repeaters are replaced with hubs or switches is a type of hybrid network topology and is referred to as a physical hierarchical star topology, although some texts make no distinction between the two topologies. A physical hierarchical star topology can also be referred as a tier-star topology.
An early version of StarLAN was developed by Tim Rock and Bill Aranguren at AT&T Information Systems as an experimental system in 1983. [1] The name StarLAN was coined by the IEEE task force based on the fact that it used a star topology from a central hub in contrast to the bus network of the shared cable 10BASE5 and 10BASE2 networks that had been based on ALOHAnet.
Network topology describes the layout of interconnections between devices and network segments. At the data link layer and physical layer, a wide variety of LAN topologies have been used, including ring, bus, mesh and star. The star topology is the most common in contemporary times.
A star topology, using a central uplink site, such as a network operations center (NOC), to transport data back and forth to each VSAT via satellite, A mesh topology, where each VSAT relays data via satellite to another terminal by acting as a hub, minimizing the need for a centralized uplink site, A combination of both star and mesh topologies.
The physical layout of the nodes in a network may not necessarily reflect the network topology. As an example, with FDDI, the network topology is a ring, but the physical topology is often a star, because all neighboring connections can be routed via a central physical location. Physical layout is not completely irrelevant, however, as common ...
The centralized star topology was also already often in use for telephone service cabling, as opposed to the bus topology required by earlier Ethernet standards Using point-to-point links was less prone to failure and greatly simplified troubleshooting compared to a shared bus
[citation needed] In the late 1970s the telecommunications and information technology sector subsequently adopted this distribution topology, dubbing it the star network network topology. "Hubbing" involves "the arrangement of a transportation network as a hub-and-spoke model". [2]