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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

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

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

Thumbnail of an article about Golang errors and how to handle them
SOFTWARE DEVELOPMENT

Golang errors and how to handle them

Many programming languages base their error handling around exceptions. Some of them use exceptions when handling abnormal situations, while others use exceptions as a normal redirection in a control flow. For example, an object in Python throws the StopIteration exception when the iterator is exhausted. Go has a rather unique way of handling errors that is very different from the traditional focus on exceptions. In this article, I’ll take a closer look at Go errors and describe how handling them differs from dealing with this issue in other programming languages.
Jakub Podolski

Jakub Podolski

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

Thumbnail of an article about ETL vs. ELT — What are they and when do we need them?
DATA

ETL vs. ELT — What are they and when do we need them?

When we talk about data warehousing, we think of databases, which is only half of the solution. Data must be stored - this is why we need a database. But data must also be delivered into the database from a source. This is where ETL/ELT comes into the equation. Let's briefly explain what a data warehouse is and why we need one. It is a system used for storing and reporting data. Due to their design, data warehouses can process huge amounts of data, making lots of information available for business analytics.
Arkadiusz Kordos

Arkadiusz Kordos

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

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

Thumbnail of an article about Microservices. The real deal or a grand delusion?
SOFTWARE DEVELOPMENT

Microservices. The real deal or a grand delusion?

According to Statista, in 2021, 85% of respondents (organizations employing a minimum of 5,000 employees) claim that they use microservices. Doubtless, adopting microservices can seriously benefit an organization and visibly improve the quality of the products and services it develops. However, it is crucial to do so properly to see positive results. This article will highlight the most important aspects you should be aware of before implementing microservices architecture into the organization. Microservices architecture, as stated by Fowler, "Microservices is a subset of SOA (service-oriented architecture) with the value being that it allows us to put a label on this useful subset of SOA terminology.
Rafael Lefever

Rafael Lefever

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

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