Routing
Router - a device that has at least two network interfaces since it has to be connected to two networks to do its job
- router receives packet of data on one of its interfaces
- router examines the destination IP of this packet
- router then looks up destination network of this IP in its routing table
- forwards traffic to destination
Destination Network - this column would contain a row for each network that the router knows about
Next Hop - the IP address of the next router that should receive data intended for the destination networking question
Routing Protocols - special protocols routers use to speak to each other in order to share what information they might have
Interior Gateway Protocols - used by routers to share information within a single autonomous system
Autonomous System - collection of networks that all fall under the control of a single network operator
Exterior Gateway Protocols - used for the exchange of information between independent autonomous systems