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The networks category covers networking protocols, data transmission methods, network addressing, and network security. Understanding network fundamentals is crucial for designing, implementing, and managing reliable and secure communication systems.

Thumbnail of an article about SONiC adaptation for custom functionality — the PoC reveal
NETWORKS

SONiC adaptation for custom functionality — the PoC reveal

In the previous part, we introduced both the higher and the lower level concepts necessary for understanding the use case scenario as well as a proposed solution, starting from its prerequisites through to the design and finally the implementation. In this concluding article of the series, we want to eventually answer the initially-posed question: can we adapt a SONiC switch to be able to deliver a custom functionality? In our case, a load balancing feature for GTP-U. In order to conduct this PoC we needed to:
Multiple authors

Multiple authors

on Dec 28, 2022
Thumbnail of an article about Management vs. Control vs. Data Planes in a Network Device
NETWORKS

Management vs. Control vs. Data Planes in a Network Device

An application, a system or even a simple device is made up of several components, each of which performs specific functions to the best of its ability, while leaving other tasks to other components which are dedicated to taking care of them. For example, a web application may consist of a HTTP server which provides the UI, a database server which keeps information about users, and a content server where images and videos are stored. Such an approach to dividing responsibilities is no different in networking devices, where hardware and software components work together to analyze and forward traffic according to the configuration applied by the administrator.
Jerzy Kaczmarski

Jerzy Kaczmarski

on Dec 22, 2022
Thumbnail of an article about Enhancing SONiC — the process of developing custom network functionality
NETWORKS

Enhancing SONiC — the process of developing custom network functionality

In the previous article, we introduced our reasons for exploring SONiC’s potential in terms of building new network functionalities, presented a use case, and described how we approached the task on the logical level. In this part, we want to share the experience we have gained through the development process. Note: please do not treat this as a comprehensive developer’s guide. What we explain here is our process and the key takeaways from it, which we believe might come in handy for other SONiC developers.
Multiple authors

Multiple authors

on Dec 16, 2022
Thumbnail of an article about Developing custom network functionality using SONiC
NETWORKS

Developing custom network functionality using SONiC

Market analyses claim that in the future, networking will shift more and more towards so-called Open Networking. Open Networking relies mainly on hardware and software disaggregation, i.e. with open standard bare-metal equipment and a choice of independent NOS (Network Operating System). Such an approach fits with the main industry trends, like Software-Defined Networking, virtualization, containerization and of course, cloud computing.\Other benefits of open networking include: Flexible architecture
Multiple authors

Multiple authors

on Dec 14, 2022
Thumbnail of an article about The popularity of Python for network test automation and more
QUALITY ASSURANCE
NETWORKS

The popularity of Python for network test automation and more

Test automation is a rapidly and dynamically evolving element of software development. Automation saves time and resources in large-scale systems by transferring repetitive activities from human hands to a machine. Companies that want to achieve both qualitative and economic benefits are faced with selecting tools that can be used to fulfill those goals. Choosing the proper framework can be challenging, but the importance of the selection of the programming language itself cannot be overlooked. This article will present the advantages of Python for testing automation - one of the most recognizable languages used for automation.
Piotr Gilert

Piotr Gilert

on Dec 1, 2022
Thumbnail of an article about From Kubernetes Ingress to Kubernetes Gateway API
CLOUD
NETWORKS

From Kubernetes Ingress to Kubernetes Gateway API

If you've ever touched on application networking in Kubernetes, it's more than likely you've come across Ingress. However, it is worth knowing that Ingress has a worthy successor in the form of Kubernetes’ Gateway API. If you want to get familiar with this new API, this article is what you need. Ingress is a Kubernetes API object that has been widely used for many years. It allows you to handle traffic entering the Kubernetes cluster from outside and to route it to multiple Services running in the cluster.
Paweł Parol

Paweł Parol

on Nov 18, 2022
Thumbnail of an article about Network automation — why does it matter?
NETWORKS

Network automation — why does it matter?

Network automation has been with us for a while and its popularity is growing exponentially, but still, there are a lot of companies that are resisting this structural revolution in the network realm. There's a joke from Big Switch Networks, that so far, the biggest shift in the network area was the migration from Telnet to SSH. Times change and the software-defined networks, along with network automation are playing a huge role in the future of many companies. That's why in this article, we would like to shed some light on network automation itself.
Multiple authors

Multiple authors

on Nov 2, 2022
Thumbnail of an article about Network optimization — what is it and why is it important?
NETWORKS

Network optimization — what is it and why is it important?

Nowadays, being an average business is rarely enough to beat the market. Customers expect outstanding products and services that make them want to stay with a company. To provide end users with high-quality outcomes, a company needs to have high-performing networks that work to ensure reliable, fast, and safe data transfer. From this article, you will learn more about network optimization – what it is, how to implement it and how it can boost your product or service, and at the same time facilitate the work of your team.
Tomasz Mika

Tomasz Mika

on Oct 27, 2022
Thumbnail of an article about Envoy configuration in a nutshell: Listeners, Clusters and More
NETWORKS
CLOUD

Envoy configuration in a nutshell: Listeners, Clusters and More

In the previous blog post, I briefly discussed what Envoy Proxy is and where it can be used. If you’re not familiar with Envoy I strongly suggest reading the previous piece first. This text is meant for developers or devops engineers who want to learn more about how to make the most of its functionality. We will discuss how Envoy Proxy actually works and how it should be configured. Let’s start with a simple example. This demonstrates the most common situation when the client initiates a connection with Envoy Proxy as it tries to reach the server.
Ignacy Osetek

Ignacy Osetek

on Oct 26, 2022
Thumbnail of an article about The Best Tools for Functional Testing in Networks
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NETWORKS

The Best Tools for Functional Testing in Networks

Software testing is an integral part of the software development life cycle (SDLC). Simply put, the primary goal of software testing is to find bugs and fix them as fast as possible, preferable at the early stages of the SDLC, and ensure bug-free software or software products. There are many different types of testing, but for this article's purpose, we will focus on functional testing. By readingthis article, you'll learn about functional testing in terms of network-related projects, what it is and whether it is actually needed.
Karolina Grabowska

Karolina Grabowska

on Sep 28, 2022
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