November 2019
Intermediate to advanced
483 pages
13h 43m
English
Content preview from Cloud Native Data Center Networking
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
Chapter 5. Routing Protocol Choices
A name indicates what we seek. An address indicates where it is. A route indicates how we get there.
John F. Schoch
Unicast routing is a fundamental enabling technology for the cloud native data center. And though unicast routing is as old as the internet, its application in the data center has led to some head scratching. Some of the head scratching led to enhancements and change to routing protocols in adapting them to data centers. But some of the reexaminations of old practices resulted in erroneous pronouncements. These errors are either based on an excessively strict application of theory to the Clos topology (saying, for instance, that link-state protocols are too chatty) or on popular misconceptions (for instance, that BGP is too slow).
Another barrier to proper routing within the data center is that, for many network operators raised on building bridged networks, routing seems an arcane art. So this chapter is an attempt to clear the cobwebs in the path to a better understanding routing and routing protocols, specifically with their application to Clos topology. With the rise of technologies such as Kubernetes, even nonnetwork engineers have to take a look at routing; Kube-router and Calico require an understanding of routing and routing protocols.
This chapter should help you answer questions such as the following:
-
How does routing work?
-
What are the types of routing protocols?
-
What is the fit of routing protocols to Clos topologies? ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.