Blog>>Networks

BLOG / Networks

details

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.

Thumbnail of an article about Tungsten Fabric as a Kubernetes CNI plugin
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
Thumbnail of an article about How to configure VNFs using a Virtual Network Function Descriptor
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
Thumbnail of an article about Managing data center physical infrastructure with Tungsten Fabric
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
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
Thumbnail of an article about The modern, interoperable DC — Part 3: Seamless and secure connectivity for edge computing and hybrid clouds
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
Thumbnail of an article about Networking technology trends for 2021
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
Thumbnail of an article about How to create a custom resource with Kubernetes Operator
NETWORKS
CLOUD

How to create a custom resource with Kubernetes Operator

While developing projects on the Kubernetes platform I came across an interesting problem. I had quite a few scripts that ran in containers and needed to be triggered only once on every node in my Kubernetes cluster. This could not be solved using default Kubernetes resources such as DaemonSet and Job. So I decided to write my own resource using Kubernetes Operator Framework. How I went about it is the subject of this blog post. When I confronted this problem, my first thought was to use a DaemonSet resource that utilizes initContainers and then starts a dummy busybox container running `tail -f /dev/null` or another command that does nothing.
Szymon Krasuski

Szymon Krasuski

on Nov 12, 2020
Thumbnail of an article about Network monitoring challenges in heterogeneous environments
OPERATIONS
NETWORKS

Network monitoring challenges in heterogeneous environments

The growing complexity of network environments poses great challenges to effective network monitoring. This should come as no surprise: such environments can include bare metals (on-prem solutions), data centers, private and public clouds. Additionally, automation, orchestration and SDNs can greatly enhance your network management, but at the same time add yet another level of complexity. In this blog post, we will discuss the main challenges related to monitoring and how to solve them to streamline the entire monitoring process.
Multiple authors

Multiple authors

on Oct 27, 2020
Thumbnail of an article about P4-programmable smartNIC controlled by ONOS (video)
SOFTWARE DEVELOPMENT
NETWORKS

P4-programmable smartNIC controlled by ONOS (video)

The traditional NIC (Network Interface Card) is a relatively simple device equipped with Ethernet interface(s) and used to enable connectivity between machines. SmartNICs, by contrast, offer much more sophisticated capabilities and allow you to perform advanced operations on packets. SmartNICs are thus perfectly suited to optimize network performance in a data center, especially those that are programmable and offer the computing resources required.
Multiple authors

Multiple authors

on Sep 29, 2020
Thumbnail of an article about The modern, interoperable DC — Part 2: EVPN as a universal solution for VM, container and BMS networking
NETWORKS

The modern, interoperable DC — Part 2: EVPN as a universal solution for VM, container and BMS networking (video)

This video is a part of our series The modern, interoperable DC, which walks you through connectivity between different types of resources.
Multiple authors

Multiple authors

on Sep 4, 2020
arrow
12...910111213

Get your project estimate

For businesses that need support in their software or network engineering projects, please fill in the form and we’ll get back to you within one business day.

For businesses that need support in their software or network engineering projects, please fill in the form and we’ll get back to you within one business day.

We guarantee 100% privacy.

Trusted by leaders:

Cisco Systems
Palo Alto Services
Equinix
Jupiter Networks
Nutanix