OpenDayLight Project --- SDN

OpenDaylight is a community-led, open, industry-supported framework, for accelerating adoption, fostering new innovation, reducing risk and creating a more transparent approach to Software-Defined Networking.
OpenDaylight is a Collaborative Project at The Linux Foundation. It is structured using open source development best practices, and is comprised of the leading organizations in the technology industry.

For more Information on OpenDayLight project, Please visit http://www.opendaylight.org/

for complete tutorial on OpenDayLight project, http://networkstatic.net/opendaylight-openflow-tutorial/

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Sexy C#

Download samples Table of Contents 1. Introduction 2. Background 3. Sexy Features 3.1. Extension Methods 3.2. Anonymous Type 3.3. Delegate 3.4. Lambda Expression 3.5. Async-Await Pair 3.6. Generics 4. Conclusion 1. Introduction C# is a very popular programming language. It is mostly popular in the .NET arena. The main reason behind that is the C# language contains so many useful features. It is actually a multi-paradigm programming language. Q. Why do we call C# a muti-paradigm programming language? A. Well, C# has the following characteristics: Strongly typed Object Oriented Functional Declarative Programming Imperative Programming Component based Programming Dynamic Programming ...

Making Python Programs Blazingly Fast

Let’s look at the performance of our Python programs and see how to make them up to 30% faster! Python haters always say, that one of the reasons they don’t want to use it, is that it’s slow . Well, whether specific program — regardless of the programming language used — is fast or slow is very much dependent on the developer who wrote it and their skill and ability to write optimized and fast programs. So, let’s prove some people wrong and let’s see how we can improve performance of our Python programs and make them really fast! Timing and Profiling Before we start optimizing anything, we first need to find out which parts of our code actually slow down the whole program. Sometimes the bottleneck of the program might be obvious, but in case you don’t know where it is, then here are options you have for finding out: Note: This is the program I will be using for demonstration purposes, it computes e to pow...

Kubernetes – init containers, CNI and more

Certain questions about Kubernetes seem to come up again and again: What’s up with this init container stuff? What’s a CNI plugin? Why is Kubernetes complaining about pods not finishing initialisation? Kubernetes is a complex system with a simple overall purpose: run user workloads in a way that permits the authors of the workloads to not care (much) about the messy details of the hardware underneath. The workload authors are supposed to be able to just focus on Pods and Services; in turn, Kubernetes is meant to arrange things such that workloads get mapped to Pods, Pods get deployed on Nodes, and the network in between looks flat and transparent. This is simple to state, but extremely complex to implement in practice. (This is an area where Kubernetes is doing a great job of making things complex for the Kubernetes implementors so that they can be easier for the users – nicely done!) Under the hood, Kubernetes is leaning heavily on a number of technologies to ma...

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