SDN: Software Defined Networks by Thomas Nadeau D. and Ken Gray shows what’s required for building networks that use software for bi-directional communication between purposes and the underlying network infrastructure.
This vendor-agnostic book additionally presents several SDN use circumstances, together with bandwidth scheduling and manipulation, input traffic and triggered actions, in addition to some attention-grabbing use instances round large knowledge, knowledge middle overlays, and network-function virtualization. Discover how enterprises and service suppliers alike are pursuing SDN because it continues to evolve.
You can explore the current state of the OpenFlow model and centralized network control, delve into distributed and central control, including data plane generation, examine the structure and capabilities of commercial and open source controllers, survey the available technologies for network programmability, and trace the modern data center from desktop-centric to highly distributed models.
The authors begin with control and data planes, followed by a good summary of distributed control planes, including IP routing and MPLS, and then a good synopsis of a few centralized control planes, including ATM LANE (and here you never thought your hard work in nailing down LANE would ever be useful again!). This second chapter provides a (rarely seen) good review of the concepts behind calculating paths and forwarding through them.
The third chapter moves into the realm of SDNs with a solid and useful overview of OpenFlow. The first section of the fourth chapter provides a brief history and operational description of VMWare. While VMWare, and it’s relation to virtual networking, is important, there is a good more detail than seems necessary to get the point across. The sections describing each of the available controllers are invaluable, although it does depend on definitions and descriptions provided later in the book. Some sections here were less useful than others, as might be expected with such a broad sweep of what is actually a complex topic.
Following this, the authors describe the history and design challenges of multitenant data centers in some detail. This chapter was useful for bringing together a lot of little bits I’ve had rattling around in my thinking for a long while, but I’m still not certain how it fits into the overall flow of the book.
There are new ways to connect instances of network-function virtualization and service chaining so you can get detailed information on constructing and maintaining an SDN network topology and examine an idealized SDN framework for controllers, applications, and ecosystems.
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