Download SDN and NFV Simplified: A Visual Guide to Understanding by Jim Doherty PDF

By Jim Doherty

A visible advisor to knowing software program outlined Networks and community functionality Virtualization


The basic, visible, at-a-glance advisor to SDN and NFV: middle options, enterprise drivers, key applied sciences, and more!


SDN (Software outlined Networks) and NFV (Network functionality Virtualization) are today’s most popular components of networking. Many executives, traders, revenues pros, and agents want a stable operating realizing of those applied sciences, yet so much books at the topic are written particularly for community engineers and different technical specialists. SDN and NFV Simplified fills that hole, supplying hugely visible, “at-a-glance” factors of SDN, NFV, and their underlying virtualizations.


Built round an illustrated, story-telling procedure, this solutions the questions: Why does this expertise subject? How does it paintings? the place is it used? What difficulties does it solve?


Through effortless, whiteboard-style infographics, you’ll study: how virtualization permits SDN and NFV; how datacenters are virtualized via clouds; how networks can be virtualized; and the way to maximise safety, visibility, and caliber of expertise in tomorrow’s fully-virtualized environments.


Step by means of step, you’ll detect why SDN and NFV applied sciences are thoroughly redefining either firm and provider networks, and using the main dramatic know-how migration given that IP networking. That’s now not all: You’ll research all you want to support lead this transformation.


  • Learn how virtualization establishes the root for SDN and NFV
  • Review the advantages of VMs, the position of hypervisors, and the administration of digital resources
  • Discover how cloud applied sciences let datacenter virtualization
  • Understand the jobs of networking apparatus in virtualized datacenters
  • See VMWare VMotion and VXLAN at paintings within the virtualized datacenter
  • Understand multitenancy and the demanding situations of “communal living”
  • Learn how center community features and home equipment should be virtualized
  • Ensure functionality and scalability in virtualized networks
  • Compare glossy methods to community virtualization, together with OpenFlow, VMWare Nicera, Cisco Inseieme, and OpenStack
  • Walk in the course of the company case for SDN, NFV, and the Cloud
  • Discover how the software program outlined community (SDN) solves difficulties formerly left unaddressed
  • Understand SDN controllers–and who’s scuffling with to regulate your network
  • Use SDN and NFV to enhance integration and say so long to “truck rolls”
  • Enforce defense, steer clear of information leakage, and shield resources via encryption
  • Provide for powerful tracking and constant caliber of expertise (QoE)
  • Learn how SDN and NFV will impact you–and what’s next


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Extra resources for SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization

Example text

Part 7: Virtualized Networks: Connecting It All Together With an understanding of the pieces, this part puts virtualization, SDN, and NFV together. More than just how it works, the chapters here explore building and managing virtualized networks. Part 8: Security: The Security Thing Security is an ever-present part of networking these days, and in virtualized networks, where you don舗t always know where your data assets are, security is always an interesting topic. The chapters in this part deal with the unique security aspects of virtualization and virtualized networks.

Well, numerous studies have shown that on average nonvirtualized enterprise servers are only running at about 5% to 10% utilization. This is partly due to advancements in chip density (they can just do more stuff in less time), but it舗s mostly because almost every server only supports just one application. Multiple applications can be supported on a single server as long as they are all supported by the same version of the operating system (OS), but for the purposes of this chapter, however, we will assume that servers have a 1:1 OS to application ratio.

Less Space (Even More Cost Savings) In the large data centers, where server farms live, the cost of the actual hardware is only a fraction of the total cost of the data center. Other costs include real estate (land), buildings, power, racks, and cables. It舗s also important to remember that companies have to have at least two of everything; so at a minimum, the cost of a data center is roughly double depending on the cost of land and power. One of the biggest considerations with spacing is the rate of growth.

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