November 2019
Intermediate to advanced
483 pages
13h 43m
English
Content preview from Cloud Native Data Center Networking
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Chapter 16. EVPN in the Data Center
Simplicity does not precede complexity, but follows it.
Alan Jay Perlis
Before we study how to configure network virtualization in the data center, we need to acquaint ourselves with the basics of EVPN. As defined before, EVPN is a solution that provides the control plane for network virtualization. In the simplest of terms, EVPN is a technology that connects L2 network segments separated by an L3 network. EVPN accomplishes this by building the L2 network as a virtual Layer 2 network overlay over the Layer 3 network. It uses BGP as its control protocol, and in the data center it uses VXLAN for packet encapsulation.
In this chapter you should find answers to questions such as these:
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What is EVPN and why is it popular?
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What are the control-plane models for deploying EVPN?
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What BGP constructs support EVPN?
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How does EVPN bridging differ from traditional 802.1Q bridging?
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How do I support dual-attached hosts?
EVPN is a fairly complex solution born out of the desire to find an alternative to Virtual Private LAN Service (VPLS) in the service provider network. I find that a lot of the work is not directly relevant to EVPN’s use in the data center, though vendors won’t ever stop trying to complicate a solution. I will not be discussing the pieces that I find irrelevant to the data center. Some of this is a matter of opinion, but hopefully one born out of designing network technologies and working on network designs for many years.
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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.
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.