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Category Archives for "Networking"

How Peering and Infrastructure Development Improved Connectivity in Kenya, Speeding Economic Growth

The country can become a continental digital leader with strengthened Internet Exchange Points (IXPs).

In January this year, Internet users in Kenya reached 22.86 million, a 16% jump from 2019. A leap that was made with no major impact on network quality and speed, and no increase in connectivity costs. Between 2012 and now, the percentage of mobile broadband subscribers increased 100-fold to cover nearly 42% of the country’s population, while the price of data decreased by 50%. This would have been unimaginable a decade ago when around 70% of the country’s traffic went through Europe.

A recent Internet Society report shows IXPs played an important role in this success. The report shines a light on how the combination of peering and Internet infrastructure development improved connectivity in Kenya. It discusses how Kenya was able to localize Internet traffic – from 30% in 2012 to 70% in 2019 – by growing its IXP membership, through attracting local, regional, and international networks, including popular Content Delivery Networks (CDNs). This allowed the local networks to efficiently exchange regional and international traffic without incurring major additional costs.

The report reveals how informed stakeholders and the local technical community in Kenya Continue reading

Heavy Networking 539: Preventing The 4poKalypse With Inter-Domain Multicast

The 4poKalypse is coming, and service providers need more tools in their toolbox to combat congestion in eyeball networks. Local content caches close to the eyeballs (pretty much how we do it today) isn’t going to be quite enough. Jake Holland of Akamai is here to tell us just why inter-domain multicast is important, and why...this time...we can make it work.

The post Heavy Networking 539: Preventing The 4poKalypse With Inter-Domain Multicast appeared first on Packet Pushers.

DNS Flag Day 2020 – ISC

The DNS protocol needs refreshing but a global, distributed database is not easy to change. The folks leading the DNS architecture are making small but substantial changes once per year. There is a non-zero but small risk that something will break for some people.  This year they are addressing DNS Fragmentation on UDP and required […]

Guide to the Virtual Cloud Network at VMworld 2020

VMworld 2020

 

The countdown to VMworld 2020 is nearly at an end and we are eager to share our latest advancements in network and security virtualization that are powering the Virtual Cloud Network with you. With this year’s FREE virtual event having such a jam-packed agenda on all things virtualization, we’ve put together this comprehensive guide to navigating the Virtual Cloud Network.

Our engineers, technologists and customers will be dropping knowledge in over 100+ live and on-demand technical sessions, hands-on labs, and interactive roundtable sessions throughout the event, covering all technical levels from beginner to advanced. Read on to get a curated list of can’t-miss activities going on between September 29 and October 1.

If you haven’t already registered, make sure to do so here and then jump into the content catalog and schedule your sessions today. See you online!

(For Security-specific programming, check out this post on the top security sessions you must attend at VMworld)

 Virtual Cloud Networking Education Track at VMworld

(Note: Scheduled Sessions are offered during several timeslots to

accommodate regional time zones. Click the session links to attend the most convenient one for you. And for the full-list of scheduled and on-demand sessions, click here. Continue reading

NTC – Cisco Devnet With Stuart Clark

From barber to Technical Leader and Developer Advocate, learn how Stuart Clark on the Cisco DevNet team transformed his career over the past 15 years.  In this episode, we talk with Stuart about his career journey, his role as a Developer Advocate focused on network automation, and the role Cisco DevNet can play along the way for those looking to enhance their automation skills.  We close by asking the question, “Will there be a DevNet Expert exam?” Listen and find out!

Links:

DevNet: https://developer.cisco.com/
Automation Exchange: https://developer.cisco.com/network-automation/
Code Exchange: https://developer.cisco.com/codeexchange/
DevNet Certifications: https://developer.cisco.com/certification/

Stuart Clark
Guest
Jason Edelman
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post NTC – Cisco Devnet With Stuart Clark appeared first on Network Collective.

Add Watermarks to your Cloudflare Stream Video Uploads

Add Watermarks to your Cloudflare Stream Video Uploads
Add Watermarks to your Cloudflare Stream Video Uploads

Since the launch of Cloudflare Stream, our customers have been asking for a programmatic way to add watermarks to their videos. We built the Watermarks API to support a wide range of use cases: from customers who simply want to tell Stream “can you put this watermark image to the top right of my video?” to customers with more detailed asks such as “can you put this watermark image in a way it doesn’t take up more than 10% of the original video and with 20% opacity?” All that and more is now available at no additional cost through the Watermarks API.

What is Cloudflare Stream?

Cloudflare Stream provides out-of-the-box video infrastructure so developers can bring their app ideas to market faster. While building a video streaming app, developers must ask themselves questions like

  • Where do we store the videos affordably?
  • How do we encode the videos to support users with varying Internet speeds?
  • How do we maintain our video pipeline in the long term?”

Cloudflare Stream is a single product that handles video encoding, storage, delivery and presentation (with the Stream Player.) Stream lets developers launch their ideas Continue reading

Musing: Hidden Complexity of Dual SIM Phones

It hadn’t occurred to me that having Dual SIMs in a smartphone has hidden aspects of complexity. In this slide, having multiple SIMs means thinking about activity – are both SIMs active at all times ? If so, are you willing to incur the battery and product penalty to have dual radios operating simultaneously.  Or […]

Lenovo introduces four new HCI solutions

Lenovo Data Center Group on Thursday introduced four new hyperconverged infrastructure (HCI) products aimed at a variety of workloads, including virtual desktop infrastructure (VDI), SAP HANA, Microsoft Azure, and Kubernetes.HCI products have grown in popularity because they are easily deployed and can get a variety of workloads up and running quickly. HCI is available either in hardware/appliance form or as software. HCI hardware vendors are the usual suspects – HP Enterprise, Dell, Lenovo – while the software vendors include Nutanix and VMware.Lenovo is focused on ready-to-deploy HCI solutions from both software firms. It boasts that its hardware is easy to deploy and manage with simple updates, automatic scalability and a consumption-based use model.To read this article in full, please click here

Lenovo introduces four new HCI solutions

Lenovo Data Center Group on Thursday introduced four new hyperconverged infrastructure (HCI) products aimed at a variety of workloads, including virtual desktop infrastructure (VDI), SAP HANA, Microsoft Azure, and Kubernetes.HCI products have grown in popularity because they are easily deployed and can get a variety of workloads up and running quickly. HCI is available either in hardware/appliance form or as software. HCI hardware vendors are the usual suspects – HP Enterprise, Dell, Lenovo – while the software vendors include Nutanix and VMware.Lenovo is focused on ready-to-deploy HCI solutions from both software firms. It boasts that its hardware is easy to deploy and manage with simple updates, automatic scalability and a consumption-based use model.To read this article in full, please click here

Cisco extends Meraki SD-WAN to Microsoft Azure

Cisco Meraki added to its SD-WAN portfolio with support for workloads running in Microsoft Azure cloud environments.Specifically, Cisco said it has integrated its SD-WAN Powered by Cisco Meraki offering with Microsoft’s Azure Virtual WAN service, which will let customers automate secure connectivity between Meraki MX appliances at branch locations directly with the Azure  service, regardless of geographical location.More about SD-WAN: How to buy SD-WAN technology: Key questions to consider when selecting a supplier • How to pick an off-site data-backup method •  SD-Branch: What it is and why you’ll need it • What are the options for security SD-WAN? The Meraki SD-WAN package is tyically aimed at what Cisco calls “lean IT environments” and includes a variety of integrated branch connectivity, security, management, orchestration and automation support.To read this article in full, please click here

Taking the ‘hands-on’ out of data center administration

Discussions about networking in a work-from-home world often focus on employees and endpoints, but how can network administrators do more than just keep the lights on if they can’t go to the data center? Maintaining what exists isn’t enough, especially as the entire world is redefining the future of work. Organizations need to be able to adapt to change, so how is that possible when administrators can’t go hands on?

There are any number of remote administration options available today, and any number of ways to compare them. Deciding between them is all about finding the right balance between cost, capability, and the labor intensity of implementation. In other words, they’re subject to all of the same considerations as any other technology implementation.

To dispense with the network administration 101 portion of the discussion*, yes, networking is mostly a matter of remote administration anyway. If you can remote into something that has access to the management network, you can use SSH, HTTPS, or what-have-you to administer networks just as you would if you were in the office. That’s maintenance, not change.

Accomplishing change remotely and at scale requires automation and orchestration. In practice, this is heavily dependent upon virtualization and/or Continue reading

Achieving CI Velocity at Tigera using Semaphore

Tigera serves the networking and policy enforcement needs of more than 150,000 Kubernetes clusters across the globe and supports two product lines: open source Calico, and Calico Enterprise. Our development team is constantly running smoke, system, unit, and functional verification tests, as well as all our E2Es for these products. Our CI pipelines form an extremely important aspect of the overall IT infrastructure and enable us to test our products and catch bugs before release.

We eventually reached a point where we needed to adopt a complete continuous integration and delivery architecture to maintain our development velocity, from code push to Kubernetes. We decided to adopt the hosted CI solution from Semaphore as an integral part of our workflow. Our test rigs on Semaphore ensure that the product is tested on three Kubernetes versions on seven different platforms, including Kubeadm, GKE, EKS, AKS, OpenShift, Rancher, and Kops. As a result, a typical pipeline can have up to 100 jobs distributed over various stages. We also have different pipelines to test our code and build Docker images for it.

Here’s a run for one of the components of our open source offering: All the Continue reading

Let World Alzheimer’s Day Remind Us to Take Our Own Brain Health Seriously

In the list of diseases that can affect your brain, Alzheimer’s disease is a critical one. From it not only affects the biology of the brain, it also affects the personality of the person. That is why it is necessary to talk about Alzheimer’s, because talking about this disease helps create awareness about brain health. On World Alzheimer’s Day, Sept. 21, 2020, talking about it will help create a sense of seriousness and importance.

How to Keep Your Brain Healthy

There are some diseases that are inevitable. That means that they cannot be stopped from occurring, but what an individual can do is make sure that you keep your brain health better and active.

Sleep Better

By sleeping better, you are making sure that your brain is getting the right rest. This means that you make sure that you are being provided with a situation where you are resting and your brain is working actively to make sure that it keeps you and your body healthy. That is why a good night’s sleep can help not only elevate your mood but also help keep you healthy and strong.

Eat Well and Healthy

By eating healthy and well, you will Continue reading

Migrating cdnjs to serverless with Workers KV

Migrating cdnjs to serverless with Workers KV

Cloudflare powers cdnjs, an open-source project that accelerates websites by delivering popular JavaScript libraries and resources via Cloudflare’s network. Since our major update in December, we focused on remodelling cdnjs for scalability and resilience. Today, we are excited to announce how Cloudflare delivers cdnjs—a migration to a serverless infrastructure using Cloudflare Workers and its distributed key-value store Workers KV!

What is cdnjs?

Migrating cdnjs to serverless with Workers KV

For those unfamiliar, cdnjs is an acronym describing a Content Delivery Network (CDN) for JavaScript (JS). A CDN simply refers to a geographically distributed network of servers that provide Internet content, whether it is memes, cat videos, or HTML pages. In our case, the CDN refers to Cloudflare’s ever expanding network of over 200 globally distributed data centers.

And here’s why this is relevant to you: it makes page load times lightning-fast. Virtually every website you visit needs to fetch JS libraries in order to load, including this one. Let’s say you visit a Sydney-based website that contains a local file from jQuery, a popular library found in 76.2% of websites. If you are located in New York, you may notice a delay, as it can easily exceed 300ms to fetch the file—not to mention Continue reading