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Thumbnail of an article about Example use case of network troubleshooting during the VNF lifecycle
NETWORKS

Example use case of network troubleshooting during the VNF lifecycle

This article will guide you through a proposition of an implementation of network monitoring and troubleshooting during the Virtual Network Function (VNF) lifecycle, based on a combination of data gathered from SDN - in our case Tungsten Fabric (TF) - and OpenStack. This article is a promised follow up to our article Network traffic troubleshooting during the VNF lifecycle - aspects of Tungsten Fabric flows. In the case presented in this article, the main challenge with network monitoring and proactive troubleshooting is to identify the root cause of potential flow-related errors before they cause a service outage.
Łukasz Drzewiecki

Łukasz Drzewiecki

on Feb 7, 2022
Thumbnail of an article about Next.js — what do you need to know?
SOFTWARE DEVELOPMENT

Next.js — what do you need to know?

The Next.js framework is often appreciated both by developers and clients as a real helping hand when it comes to building front ends. However, there is still a lack of resources that clearly show the advantages of Next.js and how it can really help during the application development process. This article is full of the knowledge of Next.js that developers look for, and here they can learn about what Next.js is, what problems it solves, and its pros and cons. Next.js is an open-source JavaScript framework created by Vercel (previously Zeit).
Tomasz Kleszczewski

Tomasz Kleszczewski

on Jan 13, 2022
Thumbnail of an article about Day 0/Day 1/Day 2 — the software lifecycle in the cloud age
OPERATIONS

Day 0/Day 1/Day 2 — the software lifecycle in the cloud age

The topic of "Day 0/Day 1/Day 2" in the context of the software lifecycle is very prominent in the professional IT media today. Presentations and conference talks are often focused on making software development processes effective and easy to manage. To do so, it is necessary to clearly define the notions that are used. The basic terms "Day 0/Day 1/Day 2" are often understood intuitively, which can introduce some ambiguity when talking about the software life cycle. For that reason, I have decided to define them more accurately to show the entire process of software development and how they are used in real projects.
Multiple authors

Multiple authors

on Nov 23, 2021
Thumbnail of an article about Where are my keys? React keys
SOFTWARE DEVELOPMENT

Where are my keys? React keys

We all have ways of remembering where we last put our apartment or car keys. After all, we all know the fear of losing them, don’t we? Applications written in React also have keys. And they are as important as those to your apartment. Or even more sometimes - especially when a deadline is around the corner and your React code is bright red. From this article, you'll learn about React's mysterious keys - both in theory and practice, what you need to know about indexes, and more. Last but not least, it will cover how to avoid the terrifying red color warning.
Robert Rochon

Robert Rochon

on Nov 10, 2021
Thumbnail of an article about Network traffic troubleshooting during VNF lifecycle — aspects of Tungsten Fabric flows
NETWORKS

Network traffic troubleshooting during VNF lifecycle — aspects of Tungsten Fabric flows

Here’s a question that gives telco operators sleepless nights: How do you go about building and maintaining your telco cloud to maintain carrier-grade requirements while bringing hyper-scale public cloud pronouncements and promises to the telco world? One of the main challenges to achieving the above is to provide network monitoring, alerting and troubleshooting. Monitoring such complex infrastructure is not only about monitoring the physical health of the hardware the services rely on. It must also extend to the state of VMs or containers serving either control plane functions or a that runs a specific network function.
Multiple authors

Multiple authors

on Nov 9, 2021
Thumbnail of an article about GPU in computer networks — how to speed up traffic processing
NETWORKS
SOFTWARE DEVELOPMENT

GPU in computer networks — how to speed up traffic processing

We are almost always online in our hyper-connected world. In just 10 years, the number of active device connections rose from 8.8 billion in 2010 to 21.6 billion in 2020, and it is expected to further increase to 41.2 billion by 2025 (according to Statista data). This rapid growth raises new technical issues regarding network traffic control and processing. Especially when we combine them with the development of 5G, a new standard offering peak data rates of up to 20 Gbps and supposedly supporting a 100-fold increase in traffic capacity and network efficiency.
Michał Niciejewski

Michał Niciejewski

on Sep 30, 2021
Thumbnail of an article about MobX in React — learn the basics [Video Demonstration]
SOFTWARE DEVELOPMENT

MobX in React — learn the basics [Video Demonstration]

MobX and React are often used together to efficiently create component-based web applications. The process of integrating them can seem challenging at the beginning. This is why we haveprepared a comprehensive video guide for those who want to use MobX in React. Also known as React.js or ReactJS, React is an open source, JavaScript library that provides an output for data presented in HTML. The views of React are generally extracted through the deployment of “components.” These components can consist of additional components, which are specified in terms of custom HTML tags.
Karolina Rusinowicz

Karolina Rusinowicz

on Sep 23, 2021
Thumbnail of an article about Rust vs C: safety and performance in low-level network programming
SOFTWARE DEVELOPMENT

Rust vs C: safety and performance in low-level network programming

According to the Stack Overflow Developer Survey 2020, Rust is the most popular programming language. It won the title for the fifth year running, and the good news hardly ends there. Also in 2020, Linux kernel developers proposed including Rust in Linux Kernel, which was originally written in C. Quite recently, Facebook joined the Rust Foundation, an organization driving the development of the language Rust, with the intention of helping it go mainstream. Given all this, we decided to check if Rust can replace C in low-level network programming to ensure higher safety without sacrificing high performance.
Multiple authors

Multiple authors

on Jun 16, 2021
Thumbnail of an article about How to build CNFs using Ligato framework
NETWORKS
CLOUD

How to build CNFs using Ligato framework

Cloud native network functions (CNFs) are a hot topic today. In this blog post, I will take a stab at explaining why and also present the Ligato framework, which allows you to build your custom CNFs. We started talking about Virtual Network Functions (VNFs) a few years ago when the concept of Network Function Virtualization (NFV) appeared. In short, it is that network functions can be deployed as virtual machines (VMs) instead of being delivered on dedicated hardware offered by vendors. Over time, telco operators and service providers launched their first field trials and then roll-outs of network functions based on this paradigm.
Paweł Parol

Paweł Parol

on Jun 10, 2021
Thumbnail of an article about Why Vector Packet Processing is worth your time
NETWORKS

Why Vector Packet Processing is worth your time

The Vector Packet Processor (VPP) is a high-performance packet-processing stack that can run on commodity CPUs. In this article, I will take a closer look at what distinguishes this technology from others and how helpful it can be in meeting the demand for efficient network solutions. Regardless of the specific hardware or software implementation at the dataplane level, packet processing can be generally described as a sequence of operations that are performed on packets. This can be represented as a graph in which each vertex corresponds to an operation.
Paweł Parol

Paweł Parol

on Jun 7, 2021
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