Elemento de red en el que se concentra el tráfico antes de ser distribuido a los sistemas conectados a la red.

A hub is a network device that functions at layer 1 of the OSI reference model (ISO/IEC IS ISO-7498-1). There is no real intelligence in network hubs; they only provide physical attachment points for networked systems or resources. [ISO-18028-4:2005]

A device where network traffic comes together before being distributed out to connected systems.