State the functions of Hub, Repeater, Bridge and Router.

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 1)Hub:

  • Hub connects all nodes in star topology. Hub is broadcasting device.
  • It sends packets to all nodes in the network.
  • It works at Physical Layer of OSI model.

2) Repeater:

  • Repeaters are used to take the distorted, weak and corrupt input signal and regenerate this signal at its output.
  • It ensures that the signals are not distorted or weak before it reaches the destination.
  • It increases the signal strength.

3)Bridge:

  • A bridge device filters data traffic at a network boundary.
  • Bridges reduces the amount of traffic on a LAN by dividing it into two segments.
  • It inspects incoming traffic and decides whether to forward or discard it.
  • It sends packets between two networks of same type.

4)Router:

  • Router chooses the best path for packet forwarding.
  • Router read complex network address in packet.
  • It works at Network Layer of OSI model
  • Efficiently direct packets from one network to another, reducing excessive traffic.
  • Join neighbouring or distant network
  • Connect dissimilar networks.
  • Prevent network bottlenecks by isolating portions of a network.

Comments

  1. Unknown16 September 2020 at 01:51

    Nice ...this is useful for students😊 keep posting

    ReplyDelete

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