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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.

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NETWORKS

Networking technology trends for 2022

The last year has shown that the virtualization and digitalization of business and society are rapidly accelerating. We are innovating faster and faster and we can already see that in 2022, the COVID-19 pandemic will continue to impact our lives in many ways, including through the increased use of networking technologies. In this article, we will cover the most likely networking technology trends for 2022, including the IoT, cloud computing etc. The outbreak of COVID-19 triggered a huge shift towards working and living online in many regions worldwide.
Adam Detko

Adam Detko

on Nov 4, 2021
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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
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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
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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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NETWORKS

Tungsten Fabric as a Kubernetes CNI plugin

CNI (Container Networking Interface) is an interface between container runtime and network implementation. It allows different projects, like Tungsten Fabric, to provide their implementation of the CNI plugins and use them to manage networking in a Kubernetes cluster. In this blog post, you will learn how to use Tungsten Fabric as a Kubernetes CNI plugin to ensure network connectivity between containers and bare metals. You will also see an example of a nested deployment of a Kubernetes cluster into OpenStack VM with a TF CNI plugin.
Piotr Sykulski

Piotr Sykulski

on Mar 2, 2021
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NETWORKS

How to configure VNFs using a Virtual Network Function Descriptor

Virtual Network Functions (VNFs) are software network elements like routers, firewalls or load balancers that replace networking hardware. Network services are performed by dedicated software that runs on Virtual Machines (VMs) managed by Virtual Infrastructure Managers (VIMs). In this blog post, we describe how to configure VNFs using a Virtual Network Function Descriptor (VNFD) together with a Network Service Descriptor (NSD) and the Open Source MANO platform. Additionally, we will present an initial configuration of a new Virtual Machine (VM) instance using cloud-init.
Multiple authors

Multiple authors

on Feb 12, 2021
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NETWORKS

Managing data center physical infrastructure with Tungsten Fabric

A data center’s physical infrastructure can consist of multiple devices including switches and routers. Managing them can be a time-consuming and error-riddled process. Adding an SDN solution to your legacy data center network makes the entire problem even more complex. Tungsten Fabric, an open-source SDN controller, may be the answer. Read on to know more. Modern data centers are built as flat two/three layers of deeply interconnected devices known as a fabric. This leaf-spine architecture is robust and easy to scale out by adding new devices instead of replacing older devices with more powerful ones.
Paweł Marchewka

Paweł Marchewka

on Jan 27, 2021
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NETWORKS

Tungsten Fabric architecture — an overview

SDN or Software-Defined Networking is an approach to networking that enables the programmatic and dynamic control of a network. It is considered the next step in the evolution of network architecture. To implement this approach effectively, you will need a mature SDN Controller such as Tungsten Fabric. Read our blog post to get a comprehensive overview of Tungsten Fabric architecture. Tungsten Fabric (previously OpenContrail) is an open-source SDN controller that provides connectivity and security for virtual, containerized or bare-metal workloads.
Multiple authors

Multiple authors

on Jan 14, 2021
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NETWORKS

The modern, interoperable DC — Part 3: Seamless and secure connectivity for edge computing and hybrid clouds (video)

In the third part of our “Modern DC” webinar series we focus on connectivity with resources located beyond the local data center, somewhere in the Internet. This includes extending Layer 2 and Layer 3 tunnels to public clouds (such as AWS, Azure and GCP), branch offices, Edge Computing servers and IoT devices based on single-board computers.
Multiple authors

Multiple authors

on Dec 16, 2020
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NETWORKS

Networking technology trends for 2021

May you live in interesting times—this well-known curse of probably Chinese origins can be applied to the pandemic era we are living through in 2020. Yet COVID-19 may also be a blessing of sorts, albeit one very much in disguise: it is likely to speed up the adoption of modern networking technology that will help companies be more flexible and secure in the midst of so much turmoil. As the COVID-19 pandemic was spreading globally and forcing governments to introduce hard lockdowns, people became more online-dependent —for work, school, communication and entertainment.
Jarosław Ganczarenko

Jarosław Ganczarenko

on Dec 10, 2020
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