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Network Hub Definition

A network operates at a high level of exigency with multitudinous requirements for security along with compliance. It’s a vast domain with divergent devices connected by an array of exclusive tools and administrators. A hub is the most basic device in computer networking that connects multiple computers or Ethernet-based devices together. Unlike a network switch, a hub is less sophisticated because it has no routing tables or intelligence on where to send information and broadcast all network data across each connection, hence it is sometimes referred as “dumb switches”.

A network hub is a small rectangular box that receives its power from an ordinary wall outlet. A hub is considered to be the least intelligent among switch and a router because it transmits everything that comes in to the every one of its ports. An Ethernet hub is categorized as layer 1 devices in the Open Systems Interconnection (OSI) reference model. OSI reference models are basically a guide so that the digital communication product and the software will interoperate to facilitate clear comparisons among communications tools. A hub can be useful for temporarily replacing a broken network switch or when performance is not a crucial factor on the network.

Most hubs detect typical problems such as collision because if two network devices on the same network try to send packets at the same time can cause excessive jabbering on individual ports. This is extenuated in terms of switches and routers, as each port represents a separate collision domain. It also raises security concerns because it cannot filter traffic and hence it cannot be protected and quarantined.

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