ABOUT THE AUTHOR

Łukasz Drzewiecki

Senior Network Engineer

Łukasz Drzewiecki is a Senior Network Engineer with twenty years of experience. He has worked on projects involving development of automation tools, supporting customers with complex multi-environment deployments with SmartNICs, and development of components for mobile services. He has a strong DevOps profile, leveraging his knowledge of automation tools and Python to optimize performance. He specializes in Python, Go, SQL, and has a strong skill set in Red Hat and Debian derivatives, services administration, network architecture, virtualization and clouds.

Łukasz Drzewiecki

Recent posts by Łukasz:

Thumbnail of an article about What is Policy Based Routing (PBR)?
NETWORKS

What is Policy Based Routing (PBR)?

Nowadays, network traffic nature becomes very complicated in terms of the mixture of applications and their connectivity requirements. Achieving these requirements by means of traditional routing mechanisms may become cumbersome or even impossible and requires special dedicated solutions. Additionally, organizations need to focus on operational costs more strictly than in the past. One good direction to achieve this goal is the optimization of resource usage within different domains. Networking is one such domain, where the objective is to rationally maximize the usage of existing infrastructure rather than making an investment in increasing its capacity.
Łukasz Drzewiecki

Łukasz Drzewiecki

on Jan 16, 2023
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 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 Tungsten Fabric architecture — an overview
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