Router

Tags

networking

Is a device operating at layer 3 of the OSI Model. They serve two functions:

• Create and maintain a map of the devices in the local area network.
• Manage the data entering, leaving and moving within the network.

Routers are smart enough to measure the time it takes for a packet to reach another router and use this information to direct packets over fast links. If a router drops off a network the other routers can detect and circumvent the failed router.