28. OCR GCSE (J277) 1.3 Star and mesh networks

About this video

• Video Title: 28. OCR GCSE (J277) 1.3 Star and mesh networks
• Channel: Craig'n'Dave
• Speakers: Craig
• Duration: 00:05:09

Overview

This video explains different network topologies, focusing on star and mesh networks, and how they have evolved from older topologies like bus and ring networks. It details the advantages and disadvantages of each, particularly in terms of connectivity, data flow, and potential failure points.

Key takeaways

• Network Topology: Refers to the arrangement of network elements.
• Historical Topologies (Bus & Ring): Older methods where a break in the main connection or ring would disrupt the entire network.
• Star Network: The most popular wired network today, featuring a central switch. A break in a single connection only affects one computer, but a failure of the central switch affects all.
• Full Mesh Network: Every device is connected to every other device, offering high redundancy. However, it requires significant cabling and can be impractical and expensive for large networks.
• Partial Mesh Network: A compromise where not all devices are connected to each other, but multiple paths exist for data, offering a balance between redundancy and cost, and is how the internet functions.