In linguistics and grammar, a pronoun is a word that substitutes for a noun or noun phrase. It is a particular case of a pro-form.
IP Routing is an umbrella term for the set of protocols that determine the path that data follows in order to travel across multiple networks from its source to its destination. Data is routed from its source to its destination through a series of routers, and across multiple networks.
The Internet is based on the AS concept; therefore, two types of routing protocols are required: 1  Interior Gateway Protocols (IGP) : Used for routing within an AS. 2  Exterior Gateway Protocols (EGP) : Used for routing between autonomous systems.