Hub vs Switch: Comparison And Difference Between Networking Devices

Hub vs Switch: Comparison And Difference Between Networking Devices – In this Post we will cover What are the Main properties of HUb and Switch . What are the Main Difference Between Hub and Switch.

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Hub vs Switch: Comparison And Difference Between Networking Devices

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HUB  PropertiesSwitch properties
  • Works at the physical layer of the OSI layer
  • Uses ‘Store and forwarding’ when it receives a data packet
  • A virtual LAN cannot be created using a hub
  • Usually comes with 4 to 12 ports
  • Only transmits electrical signals or the bits (relate it with physical layer)
  • Works at the Data link layer or layer two of the OSI model
  • Uses ‘filter and forwarding’ when it receives a data packet
  • A virtual LAN can be created using a Switch and it can also work as a multi-port bridge
  • Usually comes with 24 to 48 ports
  • Does not use any software
  • Does not have its own memory for memorizing the devices connected over to the network
  • Cannot learn the MAC addresses and neither can forward them
  • Supports Half-duplex transmission mode
  • Transmits Frames (layer 2 packets) and Layer 3 packets of the OSI model
  • Uses its software for admin access and other configurations
  • Has its own memory for memorizing the devices connected over to the network
  • Can learn the MAC addresses and stores those addressed in a CAM (Content Addressable Memories)
  • A hub has only one broadcast domain
  • Cannot support Spanning tree protocol
  • Packet collisions occur commonly inside a hub
  • Supports Half as well as full duplex transmission mode
  • A hub has only one broadcast domain
  • Can support Spanning tree protocol
  • No packet collisions occur commonly inside a hub

Hub vs Switch: Comparison And Difference Between Networking Devices

A switch is effectively a higher-performance alternative to a hub. People tend to benefit from a switch over a hub if their home network has four or more computers, or if they want to use their home network for applications that generate significant amounts of network traffic, like multiplayer games or heavy music file sharing. Technically speaking, hubs operate using a broadcast model and switches operate using a virtual circuit model.

When four computers are connected to a hub, for example, and two of those computers communicate with each other, hubs simply pass through all network traffic to each of the four computers. Switches, on the other hand, are capable of determining the destination of each individual traffic element (such as an Ethernet frame) and selectively forwarding data to the one computer that actually needs it. By generating less network traffic in delivering messages, a switch performs better than a hub on busy networks.

Switches and hubs are often used in the same network; the hubs extend the network by providing more ports, and the switches divide the network into smaller, less congested sections.

When Should I Use a Hub or Switch?

In a small network (less than 30 users), a hub (or collection of hubs) can easily cope with the network traffic generated and is the ideal piece of equipment to use for connecting the users.

When the network gets larger (about 50 users), you may need to use a switch to divide the groups of hubs, to cut down the amount of unnecessary traffic being generated.