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Category Archives for "Networking"

I Wanna Go Fast – Load Balancing Dynamic Steering

I Wanna Go Fast - Load Balancing Dynamic Steering

I Wanna Go Fast - Load Balancing Dynamic Steering

Earlier this month we released Dynamic Steering for Load Balancing which allows you to have your Cloudflare load balancer direct traffic to the fastest pool for a given Cloudflare region or colo (Enterprise only).

To build this feature, we had to solve two key problems: 1) How to decide which pool of origins was the fastest and 2) How to distribute this decision to a growing group of 151 locations around the world.

I Wanna Go Fast - Load Balancing Dynamic Steering

Distance, Approximate Latency, and a Better Way

As my math teacher taught me, the shortest distance between two points is a straight line. This is also typically true on the internet - the shorter approximate distance there is between a user going through Cloudflare location to a customer origin, the better the experience is for the user. Geography is one way to approximate speed and we included the Geo Steering function when we initially introduced the Cloudflare Load Balancer. It is powerful, but manual; it’s not the best way. A customer on Twitter said it best:

Check Out Our Newest Addition To The INE Course Library: Data Science On The Google Cloud Platform





Data Science in the Cloud

Data Science, machine learning, deep learning; these are the different driving forces of the current revolution which is changing the way businesses, companies and people make decisions, work and innovate. Data Science is triggering profound innovations in healthcare, finance, transportation, manufacturing and many other sectors.

Data science is evolving at lightning speed with a multiplication of approaches, tools and platforms. In parallel to script-based data science, think python and scikit-learn, the major cloud providers are developing platforms to power and facilitate the data scientist’s daily work and the implementation of data science projects in production. The Google Cloud Platform offers one of the most innovative and user friendly data science ecosystem.

My name is Alexis Perrier, I am a data science consultant and I’m very excited to be the instructor on this data science course on the google cloud platform. I teach data science in colleges, bootcamps and also for company training sessions. I recently wrote a couple of books on Machine Learning on the Google Cloud Platform and on AWS, both are with Packt Publishing.

I have a PhD in signal processing from Telecom-ParisTech followed by over 20 years in software engineering Continue reading

Kernel of Truth Episode 04 — Cisco, disaggregation and the industry impact

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Click here for our previous episode.

On March 27, 2018, Cisco announced it was embracing disaggregation of the data center by allowing customers to run NX-OS on third-party switches and to use any network operating system on its Nexus switches. It’s certainly an interesting move, considering that they’re the company that claimed to have killed white-box networking.

…But does this model REALLY fit the definition of network disaggregation? What does true data center disaggregation look like? Why did Alanis Morissette name the song “Ironic” when none of the lyrics are examples of irony?? To answer these questions, I invited Ben Ritter (Consulting Engineer, Cumulus Networks) and Rama Darbha (Senior Consulting Engineer, who you’ll remember from our second episode — get ready for more #RamaRants!) into the recording booth so we can get to the bottom of this. In addition to breaking down the definition of data center disaggregation, Rama, Ben and I go full John Lennon and imagine a perfect world, where Cisco actually embraces the true spirit of disagreggation. How would this impact the industry? Imagine there’s no black box…it’s easy if Continue reading

Weekend Reads: 071918

In this post, we present ARTEMIS (Automatic and Real-Time dEtection and MItigation System), a defence system that can be used by operators to protect their own network from BGP prefix hijacking events. Using real experiments, we’ve shown that ARTEMIS can detect prefix hijacking events within seconds and neutralize them within a minute; orders of magnitude faster than with current practices. —Vasileios Kotronis @APNIC

You could sum up the security advantages of serverless this way: What containers did for ensuring the operating system and hardware layer could be maintained and secured separately, serverless offers the same at the application and web server layer. And yet — serverless is no silver bullet from a security perspective. Serverless environments still need to be designed and managed with security in mind at every moment. —Vince Power @The New Stack

Another lesson is that privacy defenses don’t need to be perfect. Many researchers and engineers think about privacy in all-or-nothing terms: a single mistake can be devastating, and if a defense won’t be perfect, we shouldn’t deploy it at all. That might make sense for some applications such as the Tor browser, but for everyday users of mainstream browsers, the threat model is death by Continue reading

CCDE Written 352-001 Exam Experience – 2018

My recent experience on CCDE Written Exam.    If you are reading this post , probably you know that CCDE Written (Qualification) Exam is the only prerequisite for the CCDE Practical exam.   Also when you pass CCDE Practical exam and get the magical number, you need to retake every 2 years CCDE Written or […]

The post CCDE Written 352-001 Exam Experience – 2018 appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

CCDE Written 352-001 Exam Experience – 2018

My recent experience on CCDE Written Exam.    If you are reading this post , probably you know that CCDE Written (Qualification) Exam is the only prerequisite for the CCDE Practical exam.   Also when you pass CCDE Practical exam and get the magical number, you need to retake every 2 years CCDE Written or …

Continue reading "CCDE Written 352-001 Exam Experience – 2018"

The post CCDE Written 352-001 Exam Experience – 2018 appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

CCDE Written 352-001 Exam Experience – 2018

My recent experience on CCDE Written Exam.    If you are reading this post , probably you know that CCDE Written (Qualification) Exam is the only prerequisite for the CCDE Practical exam.   Also when you pass CCDE Practical exam and get the magical number, you need to retake every 2 years CCDE Written or …

Continue reading "CCDE Written 352-001 Exam Experience – 2018"

The post CCDE Written 352-001 Exam Experience – 2018 appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

BrandPost: Adaptive Network: A Telecom Leap-Frog Opportunity for Emerging Asia

Ciena Rick Seeto, VP and General Manager, Asia Pacific & Japan Sales at Ciena Emerging Asia is one of the most culturally diverse regions in the world, with fast growing economies powered by a youthful population. The communication networks in these countries are often less burdened by legacy systems compared to developed countries, as they have started developing communications infrastructure relatively recently. To read this article in full, please click here

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