July 2018
Intermediate to advanced
95 pages
2h 32m
English
Content preview from EVPN in the Data Center
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Chapter 3. The Building Blocks of Ethernet VPN
Border Gateway Protocol (BGP) is the brain that drives Ethernet VPN (EVPN). In this chapter, we study the building blocks of BGP that are responsible for the construction of virtual network overlays. There are two facets to these building blocks: the BGP peering model, and the model for exchanging routing information.
The reason to study these models is to help a network administrator understand how to deploy EVPN in the data center. The primary takeaway of this chapter is that EVPN deployment in the data center can be simpler than its service provider (SP) counterpart.
Let’s kickstart the chapter with a brief history of EVPN. This helps the reader understand the motivation behind EVPN. We next look at how BGP peering for EVPN was designed for the SP network. This leads us to see how BGP peering works in the data center in the absence of EVPN and how this affects the way EVPN is deployed in the data center. The next section deals with the fundamental BGP constructs that EVPN uses. The final two sections deal with additional constructs necessary to allow EVPN to work with external Border Gateway Protocol (eBGP) in Free Range Routing (FRR) and non-FRR routing suites. At the end of this chapter, you should be able to understand the choices in deploying EVPN in the data center.
A Brief History of EVPN
Virtual Private Networks (VPNs) interconnect multiple private networks across a public network. As discussed in Chapter 2, the interconnection ...
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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.