Hubs in Networking

A network hub is a basic and foundational networking device used in local area networks (LAN). It operates at the physical layer (Layer 1) of the OSI model. Essentially, a hub is a multiport repeater. It receives incoming data packets (also known as frames) from one device and broadcasts them to all other devices connected to the hub.

Hubs come in different types, such as passive, active, and intelligent:

Basic Use:

Limitations and Considerations

Modern Use and Alternatives

In modern networks, hubs have largely been replaced by network switches. Switches are more advanced as they can direct data packets to specific devices rather than broadcasting to all connected devices, thus reducing the likelihood of collisions and improving network performance and security. However, hubs are still used in certain situations where network simplicity and cost are the primary considerations.


Avoid at all costs