STAR Topology

• Star topology

  A type of network topology in which all the devices or nodes are physically connected to a central node such as a router, switch, or hub
• Star topology

  • The central node (hub) acts as a server, and the connecting nodes act as clients
  • Mainly utilized in home networks (LAN networks)
  • Provides a reliable and efficient way to manage network traffic and troubleshoot connectivity issues
• How star topology works

  1. Data is first sent to the central node (hub), which then transfers the data to all the devices on the network

  2. Nodes receive the data and check for the destination address

  3. If the address matches, the data is processed, otherwise it is discarded
• Types of star topology

  • Active star topology
  • Passive star topology
• Active star topology

  The outer nodes process the network's data, connected to a single central active hub that regenerates and broadcasts the communication signals
• Passive star topology

  The outer nodes do not handle any data, connected to a single central passive hub that does not regenerate or reprocess the signals
• Applications of star network topology

  • Home networks
  • Wireless networks
  • Telecommunications
  • Surveillance systems
• Star Topology advantages

  • A device failure (computer, cable) doesn't damage the entire network
  • Each device has its own dedicated connection
  • Adding or removing devices requires only a single cable connection to the central hub
  • There is no need to reconfigure the entire network
  • Isolating problems is easier due to individual connections
  • Faulty devices or cables can be quickly identified and addressed
  • Can accommodate various cable types (coaxial, fiber optic) depending on network needs and budget
• Star Topology

  • Central hub is critical
  • If central hub fails, entire network becomes inoperable, impacting all connected devices
• Star Topology

  • Requires more cabling than bus topology, leading to higher installation and maintenance expenses
  • Central hubs can also be costly, especially for high-performance models
• Star Topology

  • Network performance depends heavily on the capacity and capabilities of the central device
  • A limited hub can hinder overall network speed and performance
• Individual connections in star topology

  Offer some security benefits
• Unauthorized access to the central hub/switch in star topology

  Can compromise the entire network
• Star topology disadvantages

  • The central hub is critical. If it fails, the entire network becomes inoperable, impacting all connected devices.
  • Requires more cabling than bus topology, leading to higher installation and maintenance expenses. Central hubs can also be costly, especially for high-performance models.
  • Network performance depends heavily on the capacity and capabilities of the central device. A limited hub can hinder overall network speed and performance.
  • Managing and maintaining the central hub requires more resources and technical expertise than simpler topologies.
  • The star network necessitates extensive cabling, which can be challenging to manage, especially in large or complex layouts. It can lead to tangles, clutter, and potential cable damage.