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Network infrastructure comprises the hardware and software components that enable communication and data transfer. It includes (physical and virtual elements like) routers and switches, servers as well as protocols, and security measures, forming the backbone of modern connectivity for businesses and individuals.

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NETWORKS

Traffic Generators in Network Device Testing

Thanks to network device testing built-in features, traffic generators can make the life of a network engineer much easier. They are a great tool that provides scale, capabilities, and repeatability, which is critical since tests rely on them as a reference.
Kamil Dąbrowski

Kamil Dąbrowski

on Apr 26, 2024
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NETWORKS

Introducing SONiC-DASH for enhanced network programmability

SONiC and DASH have emerged as essential solutions to meet modern networking needs like flexibility, efficiency, and performance optimization. SONiC's open-source framework empowers organizations to customize their network operations, reducing dependency on proprietary systems and fostering innovation.
Kamil Kacperski

Kamil Kacperski

on Apr 15, 2024
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NETWORKS

Understanding Self-Organizing Networks: the SON essentials

In this article we explain the idea behind self-organizing networks (SONs), what they are, where they are applicable and how organizations can benefit from them.
Tomasz Sikorski

Tomasz Sikorski

on Mar 22, 2024
Thumbnail of an article about Spine-leaf vs. traditional DCs: what’s the difference?
NETWORKS

Spine-leaf vs. traditional DCs: what’s the difference?

In this article, we compare two solutions: traditional data centers architecture and the spine-leaf architecture.
Horia Gunică

Horia Gunică

on Feb 29, 2024
Thumbnail of an article about Introduction to DNSSEC
NETWORKS

Introduction to DNSSEC

The following article gives an insight into DNSSEC general principles. It provides practical examples, describing how DNSSEC works and how it can be used. Finally, it gives some information about the current adoption of this extension worldwide.
Mariusz Hryszko

Mariusz Hryszko

on Feb 26, 2024
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NETWORKS

Latest addition to network testing and simulation: Containerlab

Until recently all existing virtual lab solutions were based on vendor appliances provided as virtual machines. Such an approach allowed us to emulate closely the real HW (some of those appliances had virtualized data planes as well - e.g. vEX, vMX). However this is not always the desired case.
Adam Kułagowski

Adam Kułagowski

on Jan 25, 2024
Thumbnail of an article about Virtual Labs: running network topology on a plain laptop
NETWORKS

Virtual Labs: running network topology on a plain laptop

For a very long time whenever someone wanted to create a network playground, they had to use physical equipment. Although such an approach had some pros, they were quickly outweighed by the cons, such as: price of equipment, manual cabling required to set up the environment, noise, power consumption - the list is long.
Adam Kułagowski

Adam Kułagowski

on Jan 24, 2024
Thumbnail of an article about Ethernet VPN explained: benefits, use cases, and key concepts
NETWORKS

Ethernet VPN explained: benefits, use cases, and key concepts

The requirement of Layer 2 connectivity has driven Ethernet-based fabrics and Layer 2 virtual private networks (VPN) to be adopted by internet service providers, cloud operators, and enterprises in their converged networks. A new set of requirements, not initially considered in the design of existing technologies and protocols, has led to the deployment of solutions with certain shortcomings.
Piotr Jakacki

Piotr Jakacki

on Nov 20, 2023
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 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
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