September 2016
Beginner
274 pages
5h 16m
English
Content preview from VMware NSX Network EssentialsBecome 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,
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Overlay networks
A virtual network which is built on top of a physical network is called an overlay network. Does that sound familiar by any chance? Most enterprise environments would have used VPN technology for securing private or public networks, which is an IP-over-IP overlay technology. However, it is very important to understand that not all overlay networks are built on top of IP networks. The real question is, why do we require an overlay network ? As we can see from the following figure, we have two data centers and each of these data centers is following a spine-leaf topology. Flexible workload placement and virtual machine mobility, along with strong multitenancy for each tenant, are common asks in a virtualized infrastructure:
VXLAN, ...
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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.