May 2011
Intermediate to advanced
788 pages
23h 34m
English
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Specific Routing Protocols
Entire books have been written on each of the routing protocols discussed in this chapter. My goal is not to teach you everything you need to know about the protocols, but rather to introduce them and show you what you need to know to get them operational. I’ll also include some of the commands commonly used to troubleshoot these protocols.
Routing protocols are divided into types based on their purpose and how they operate. The major division between routing protocols is that of internal gateway protocols versus external gateway protocols.
An internal gateway protocol, or IGP, is designed to maintain routes within an autonomous system. An autonomous system is any group of devices controlled by a single entity. An example might be a company or a school, but the organization does not need to be that broad—an autonomous system could be a floor in a building or a department in a company. Examples of IGPs include RIP, EIGRP, and OSPF.
An external gateway protocol, or EGP, is designed to link autonomous systems together. The Internet is the prime example of a large-scale EGP implementation. The autonomous systems—groups of devices controlled by individual service providers, schools, companies, etc.—are each self-contained. They are controlled internally by IGPs and are interconnected using an EGP (in the case of the Internet, BGP).
Figure 10-8 shows how different autonomous systems might be connected. Within each circle is an autonomous system. The IGP running ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.