SDN: Software Defined Networks Author: Thomas D. Nadeau | Language: English | ISBN:
B00EJX7WEG | Format: EPUB
SDN: Software Defined Networks Description
Explore the emerging definitions, protocols, and standards for SDN—software-defined, software-driven, programmable networks—with this comprehensive guide. Two senior network engineers show you what’s required for building networks that use software for bi-directional communication between applications and the underlying network infrastructure.
This vendor-agnostic book also presents several SDN use cases, including bandwidth scheduling and manipulation, input traffic and triggered actions, as well as some interesting use cases around big data, data center overlays, and network-function virtualization. Discover how enterprises and service providers alike are pursuing SDN as it continues to evolve.
- 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
- Trace the modern data center from desktop-centric to highly distributed models
- Discover new ways to connect instances of network-function virtualization and service chaining
- Get detailed information on constructing and maintaining an SDN network topology
- Examine an idealized SDN framework for controllers, applications, and ecosystems
- File Size: 12968 KB
- Print Length: 386 pages
- Page Numbers Source ISBN: 1449342302
- Simultaneous Device Usage: Unlimited
- Publisher: O'Reilly Media; 1 edition (August 13, 2013)
- Sold by: Amazon Digital Services, Inc.
- Language: English
- ASIN: B00EJX7WEG
- Text-to-Speech: Enabled
X-Ray:
- Lending: Not Enabled
- Amazon Best Sellers Rank: #130,298 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
- #45
in Books > Computers & Technology > Hardware > Internet & Networking
- #45
in Books > Computers & Technology > Hardware > Internet & Networking
I recently facilitated a discussion where we deliberated the business value of Software Defined Networking. This was an interesting exercise, since I was trying to get those involved to move beyond the technology and give examples of why SDN is important to the business itself. In preparation for that discussion, I reviewed the book SDN: Software Defined Networks by Thomas D. Nadeau & Ken Gray among a number of other sources.
I found the material in the book to be a useful orientation to the current state of the SDN market as well as develop a contextual understanding of the flexibility provided and the approaches needed to build value through an SDN. One point made clear through reading the material is that one of the key benefits is flexibility. You’ll only internalize what that means to your organization through experimentation and using SDN. This is best summed up through the following sentence from the last chapter.
“Though it’s too early to pick a winning technology, or even a winning definition of SDN, one thing remains true—the explorations into SDN will change our present method of operation.”
This book facilitates developing that contextual understanding of what the possibilities could be so that you can plan the approach that works best for you. There is no one right answer.
One of the areas I thought could have been brought out a bit more is the strategic implications of SDN on enterprise service functionality and architecture. It appeared the assumption was that there are no real implications on the applications (that generate business value) themselves. It is all about data packets as network traffic being routed more flexibly.
Overall, I believe the book has done an excellent job covering most of the Software Defined Networking topics, perhaps sacrificing depth in terms of the breadth of topic coverage. I think the authors would be the first to agree that it is an impossible task to do both, therefore they made a choice to cover most topics without drilling too deep into them.
As a network engineer by trade for the last 14 years, I, as well as others feel that the Software Driven (or Defined) Networking is the biggest shift in mindset and technology in the last decade. The winners of this movement is sure to dominate the market for years to come. As such, there is a lot of buzz and movement surrounding the umbrella term of ‘SDN’. It is almost mind blowing to see the pace of change at each and all of the projects. OpenStack, for example, has moved on from Quantum to Neutron in such short months since publication, which contains no small change, mind you. So the readers should keep in mind that any written book would be out-of-date by the time it is done. This should be treated as a starting point that is like sampling the food at a buffet, but to sink your teeth into a particular topic, you have to spend more time diving into that particular topic.
As a reader, I come funnily anticipated looking the lenses of the authors on the topic at hand. If there is any suggestions, I would appreciate the book to be more focused on topics that the authors feel might be more important. It does not need to be correct as there is probably no right or wrong answer, but at least thru the supporting points we can understand the analytical process of the author. For example, VxLAN vs NVGRE, OpenStack vs. CloudStack, OpenFlow vs. Hybrid; tell us what you believe will prevail with supporting thesis.
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