Routing Protocols
As we know, Routing is the process of forwarding the information/data packets from the source to the destination, but the best route to send the packets is determined by the routing algorithm.
Types of Routing Protocols
There are 3 types of routing protocols explained in the following diagram
In this section, we will explain dynamic routing protocols, which are used only for unicasting
Intra-Domain Routing Protocols: In this protocol, the Routing algorithm works only within the domains (Autonomous System). These protocols are also called Interior Gateway Protocols (IGPs).
Inter-Domain Routing Protocols: In this protocol, the Routing algorithm works within and between domains (Autonomous Systems). These protocols are also called Exterior Gateway Protocols (EGPs).
Autonomous System (AS): It is a collection of some networks and routers whose prefixes and routing policies are controlled and supervised by a single entity or organization. The network of a city may be an example of an autonomous system.
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