A network hub is a simple networking device that facilitates the connection of multiple devices in a computer network. It is primarily used in Ethernet LANs (Local Area Networks). The role of a network hub is to receive data packets from one device and transmit them to all other connected devices.
Here are some key functions and features of a network hub:
In modern networks, switches have largely replaced hubs due to their enhanced functionality and performance. Switches allow devices to communicate directly with each other, reducing collisions and improving overall network performance.
A network hub is a central device used in computer networking to connect multiple devices together on a single network. The primary role of a network hub is to receive data packets and then transmit them to all connected devices or segments within the network. It operates at the physical layer of the network architecture.
Unlike switches or routers, network hubs do not have the ability to interpret or manage data packets. Instead, they operate in a broadcast mode where any data received by the hub is relayed to all connected devices, regardless of its destination. This means that all devices connected to a hub share the same bandwidth, as data transmitted by one device is received by all others.
Because of their limited functionality, network hubs are most commonly used in small home or office networks where the number of connected devices is relatively low and network traffic is not very demanding. In larger networks or environments with higher traffic, network switches or routers are preferred over hubs as they offer better performance and more control over data transmission.