What is Router?

Router is an intelligent protocol sensitive device that connects different networks. It sends data between networks by examining the network addresses contained in the packets they process. It extracts the destination of a packet it receives, selects the best path to that destination, and forwards data packets to the next device along the path.

A router has two key jobs:
  • The router ensures that information doesn't go where it's not needed. This is crucial for keeping large volumes of data from clogging the network.
  • The router makes sure that information does make it to the intended destination.

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