Question: What is routers?


A router is a special purpose computer, that allows to connect to multiple computer networks.

Routers are both hardware & software devices.

Routers in computer networking
Figure: Routers in computer networking

Router can connect network segments, and filters and isolate traffic.

Unlike a bridge, a router can connect networks that uses different technology, addressing methods, media types, frame format speeds.

Routers operator at "Network Layer" in OSI model.

Routers in Networking
Figure: Routers in Networking

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