July 2018
Intermediate to advanced
95 pages
2h 32m
English
Content preview from EVPN in the Data Center
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 2. Network Virtualization
Ethernet VPN (EVPN) is a technology for connecting Layer 2 (L2) network segments separated by a Layer 3 (L3) network. It accomplishes this by constructing a virtual L2 network over the underlying L3 network. This setting up of virtual network overlays is a specific kind of network virtualization.
So, we begin our journey to the world of EVPN by studying network virtualization. This chapter covers types of network virtualization, including in more detail the specific type of virtualization called Network Virtualization Overlays (NVOs). Staying true to a practitioner’s handbook, this chapter largely focuses on understanding the ramifications of NVOs for a network administrator. We study network tunnels and their effects on administering networks. A little history provides context for the broader technology called network virtualization and adds color to the specifics of Virtual Extensible LAN (VXLAN), the primary NVO protocol used with EVPN within the data center. We conclude with a brief survey of alternate control-plane choices and the availability of network virtualization solutions. By the end of this chapter, you will be able to tease apart the meaning of the phrase “virtual L2 network overlay.”
What Is Network Virtualization?
This section begins by examining the raison d’être for virtual networks. We then examine the different kinds of virtual networks, before concluding with the benefits and the challenges of overlay virtual networks.
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.