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Category Archives for "Networking"

Network Engineer Evolution

About two years ago I made a learning roadmap for network engineers who want to transform their skills towards Software Defined Networking. I presented it at various events including Cisco Live. It was good, but it looks like I didn't provide the full story. So let's discuss it again, and we will start from the very beginning.


Any network engineer who just starts his or her career today will begin in Phase 1: as the User of networking products where the engineer only knows how to configure the product, hopefully by reading the documentation from the vendor's website first. This type of engineer is what I call "Config Monkey" (sorry, monkey!). If you think you are still in this phase, please don't get offended: I started my career here too. There is no innovation at all, only follow the manual to make the products run.

Then we will move to Phase 2: as Advanced User of networking products. This is the phase where the engineer understands how networking protocols work in detail. He is a domain expert now and can start fine tuning the protocols to optimize the infrastructure. IGP timers, fast re-route, BGP attributes etc. and the engineer Continue reading

Cumulus content round up

To help you stay in the know on all things data center networking, we’ve gathered some of our favorite content from both our own publishing house and from around the web. We hope this helps you stay up to date on both your own skills and on data center networking trends. If you have any suggestions for next time, let us know in the comment section!

Our fav new pieces at Cumulus Networks

BGP in the data center: Are you leveraging everything BGP has to offer? Probably not. This practical report peels away the mystique of BGP to reveal an elegant and mature, simple yet sophisticated protocol. Author Dinesh Dutt, Chief Scientist at Cumulus Networks, covers BGP operations as well as enhancements that greatly simplify its use so that practitioners can refer to this report as an operational manual. Download the guide.

Magic Quadrant report:  Cumulus Networks has been named a “Visionary” in the Data Center Networking category for 2017 Gartner Magic Quadrant. With 96% of their survey respondents finding open networking to be a relevant buying criterion and with the adoption of white-box switching to reach 22% by 2020, it’s clear that disaggregation is the answer for forward-looking companies. Continue reading

Worth Reading: Converge your network with priority flow control

Back in April, we talked about a feature called Explicit Congestion Notification (ECN). We discussed how ECN is an end-to-end method used to converge networks and save money. Priority flow control (PFC) is a different way to accomplish the same goal. Since PFC supports lossless or near lossless Ethernet, you can run applications, like RDMA, over Converged Ethernet (RoCE or RoCEv2) over your current data center infrastructure. Since RoCE runs directly over Ethernet, a different method than ECN must be used to control congestion. In this post, we’ll concentrate on the Layer 2 solution for RoCE — PFC, and how it can help you optimize your network. —Cumulus

The post Worth Reading: Converge your network with priority flow control appeared first on rule 11 reader.

What is IoT?

The Internet of Things, at its simplest level, is smart devices - from refrigerators that warn you when you’re out of milk to industrial sensors – that are connected to the Internet so they can share data, but IoT is far from a simple challenge for IT departments.For many companies, it represents a vast influx of new devices, many of which are difficult to secure and manage. It’s comparable to the advent of BYOD, except the new gizmos are potentially more difficult to secure, aren’t all running one of three or four basic operating systems, and there are already more of them.A lot more, in fact – IDC research says that there are around 13 billion connected devices in use worldwide already, and that that number could expand to 30 billion within the next three years. (There were less than 4 billion smartphone subscriptions active around the world in Ericsson’s most recent Mobility Report.) To read this article in full or to leave a comment, please click here

What is IoT?

The Internet of Things, at its simplest level, is smart devices - from refrigerators that warn you when you’re out of milk to industrial sensors – that are connected to the Internet so they can share data, but IoT is far from a simple challenge for IT departments.For many companies, it represents a vast influx of new devices, many of which are difficult to secure and manage. It’s comparable to the advent of BYOD, except the new gizmos are potentially more difficult to secure, aren’t all running one of three or four basic operating systems, and there are already more of them.A lot more, in fact – IDC research says that there are around 13 billion connected devices in use worldwide already, and that that number could expand to 30 billion within the next three years. (There were less than 4 billion smartphone subscriptions active around the world in Ericsson’s most recent Mobility Report.) To read this article in full or to leave a comment, please click here

What is IoT?

The Internet of Things, at its simplest level, is smart devices - from refrigerators that warn you when you’re out of milk to industrial sensors – that are connected to the Internet so they can share data, but IoT is far from a simple challenge for IT departments.For many companies, it represents a vast influx of new devices, many of which are difficult to secure and manage. It’s comparable to the advent of BYOD, except the new gizmos are potentially more difficult to secure, aren’t all running one of three or four basic operating systems, and there are already more of them.A lot more, in fact – IDC research says that there are around 13 billion connected devices in use worldwide already, and that that number could expand to 30 billion within the next three years. (There were less than 4 billion smartphone subscriptions active around the world in Ericsson’s most recent Mobility Report.) To read this article in full or to leave a comment, please click here

IDG Contributor Network: How to plan your successful cloud migration

Recent Accenture Strategy research found that four out of five companies run up to half of their business functions in the cloud. Moreover, that figure is likely to increase significantly over the next few years. The research reveals that a clear majority of business leaders see the cloud platform as a critical enabler of greater innovation and competitive edge.Yet, companies still struggle when it comes to structuring the cloud transformation, beginning with the fundamental first step — planning a successful migration. What’s lacking is a solid comprehension of what value the cloud brings, its potential and its elasticity.To read this article in full or to leave a comment, please click here

Worth Reading: Implementing security as a set of services

In this post, I will focus on the implementation of the security services in terms of an ITIL-type framework. This is a blog post that took a long time to write — but some of the considerations here are essential if you are in the process of implementing security as a service, and especially if you are looking at ITIL as a service delivery methodology. —APNIC

The post Worth Reading: Implementing security as a set of services appeared first on rule 11 reader.

37% off Fitfort 4K WiFi Ultra HD Waterproof Sport Camera – Deal Alert

This sport camera is a budget-friendly alternative to GoPro. It averages 4.5 out of 5 stars from over 230 reviewers on Amazon, where Its list price of $100 is currently discounted 37% to just $64. Designed to be used for biking, hiking, diving, swimming, surfing, or anywhere else you could use a rugged, waterproof camera. The camera provides 4K/25FPS, 2.7K/30FPS, 1080P/60FPS, 1080P/30FPS and 720P/120FPS video resolution. Comes with a wireless remote, and 2 rechargeable batteries that provide up to 90 minutes of continuous filming each. See this deal on Amazon.To read this article in full or to leave a comment, please click here

Mythbusting the CCIE Continuing Education Program

It’s been about a month since the CCIE Continuing Education program was announced ahead of Cisco Live. There was a fair amount of discussion about it both on this blog as well as other places, like Jeff Fry’s post. Overall, the response has been positive. However, there are a few questions and ideas about the program that are simply not true. And no, this is not The Death Of The CCIE Program (just Google it). So, let’s take a look at this edition of Mythbusters for the CCIE CE program.

Myth #1: The CE Program Is Just A Way For Cisco To Sell More Training

This was a good one. The list of CE classes that was release at the beginning of the program included Cisco Live classes as well as Cisco Authorized training classes. Those were the only thing on the list as of right now. When some people saw the list, they jumped to the conclusion that the reason why the CE program exists is because Cisco wants to push their training courses. Let’s look at that.

Let’s say you want to start a global program that requires people to keep track of their training credits to turn Continue reading

Azure Stack: Microsoft’s private-cloud platform and what IT pros need to know about it

Microsoft’s release of Azure Stack, an on-premises version of its public cloud, could be important for networking and data center pros for one simple reason: It gives customers a way to use a popular and familiar cloud platform without shipping their sensitive data into a multi-tenant environment.Azure Stack is software from Microsoft that’s been certified to run on a select group of partners’ hardware and is intended to look and feel just like the Azure public cloud. In addition to providing a common management platform between the public and private cloud, Azure Stack is important for another reason too: none of Microsoft’s biggest public cloud competitors have anything like it.To read this article in full or to leave a comment, please click here

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