Components of Router

Internal components:

* ROM:- Used to store the routers bootstrap details, operating system software.

* Flash memory: - holds the operating systems images. The content is retained when the router is restarted.

* RAM: - Used to store the Routing tables, configuration files, caching and buffering details. Content is lost when lost router is switched off or restarted.

* NVRAM:- Stores the routers startup config files. Data is non volatile.

* Network interfaces to connect router to network.

External components:

* Virtual terminals: For accessing routers

* Network management stations