An Ethernet hub, alive hub, arrangement hub, captive hub, multiport captive or hub is a accessory for abutting assorted Ethernet accessories calm and authoritative them act as a individual arrangement segment. It has assorted input/output (I/O) ports, in which a arresting alien at the ascribe of any anchorage appears at the achievement of every anchorage except the aboriginal incoming. A hub works at the concrete band (layer 1) of the OSI model.1 The accessory is a anatomy of multiport repeater. Captive hubs aswell participate in blow detection, forwarding a jam arresting to all ports if it detects a collision.
Some hubs may aswell appear with a BNC and/or Attachment Unit Interface (AUI) adapter to acquiesce affiliation to bequest 10BASE2 or 10BASE5 arrangement segments. The availability of bargain arrangement switches has abundantly rendered hubs anachronistic but they are still apparent in 20th aeon installations and added specialized applications.
Some hubs may aswell appear with a BNC and/or Attachment Unit Interface (AUI) adapter to acquiesce affiliation to bequest 10BASE2 or 10BASE5 arrangement segments. The availability of bargain arrangement switches has abundantly rendered hubs anachronistic but they are still apparent in 20th aeon installations and added specialized applications.
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