From the course: Cisco Networking Foundations: Switching and Routing

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Routing protocol categories

Routing protocol categories

From the course: Cisco Networking Foundations: Switching and Routing

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Routing protocol categories

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- [Instructor] In our previous video, we talked about BGP, the Border Gateway Protocol, as a protocol that would communicate between our company and our different ISPs, our Internet Service Providers. Well, in an example like that, our company would have a number called an Autonomous System value, an AS value. Each of our ISPs would have their own values as well. And we define an autonomous system as being a network under a single administrative control. And we'll talk in a moment about how BGP is going to primarily route between autonomous systems. Another term we need to understand is an IGP, and Interior Gateway Protocol. This is a protocol that is going to run within an autonomous system, such as RIP or OSPF or IS-IS or EIGRP. And what runs between autonomous systems? We gave BGP as an example. That's an EGP, an Exterior Gateway Protocol. So that's going to take us between one autonomous system and another…

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