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Historically, the main reason for purchasing hubs rather than switches was their price. By the early 2000s, there was little price difference between a hub and a low-end switch. [11] Hubs can still be useful in special circumstances: For inserting a protocol analyzer into a network connection, a hub is an alternative to a network tap or port ...
Switch monitoring (SMON) is described by RFC 2613 and is a provision for controlling facilities such as port mirroring. [30] RMON [31] sFlow; These monitoring features are rarely present on consumer-grade switches. Other monitoring methods include connecting a layer-1 hub or network tap between the monitored device and its switch port. [32]
A switch on the other hand provides a series of point-to-point circuits, via microsegmentation, which allows each client node to have a dedicated circuit and the added advantage of having full-duplex connections. From the OSI model's layer perspective, both switches and repeater hubs provide point-to-point connections on the physical layer.
In a modern Ethernet, the stations do not all share one channel through a shared cable or a simple repeater hub; instead, each station communicates with a switch, which in turn forwards that traffic to the destination station. In this topology, collisions are only possible if station and switch attempt to communicate with each other at the same ...
A control station is a base station used in a system with a repeater where the base station is used to communicate through the repeater. A temporary base is a base station used in one location for less than a year. A repeater is a type of base station that extends the range of hand-held and mobile radios.
An Ethernet repeater with multiple ports is known as an Ethernet hub. In addition to reconditioning and distributing network signals, a repeater hub assists with collision detection and fault isolation for the network. Hubs and repeaters in LANs have been largely obsoleted by modern network switches.
The difference between the two frequencies may be relatively small compared to the frequency of operation, say 1%. Often the repeater station will use the same antenna for transmission and reception; highly selective filters called "duplexers" separate the faint incoming received signal from the billions of times more powerful outbound ...
A repeater with multiple ports is known as hub, an Ethernet hub in Ethernet networks, a USB hub in USB networks. USB networks use hubs to form tiered-star topologies. Ethernet hubs and repeaters in LANs have been mostly obsoleted by modern switches.
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