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Category Archives for "Networking"

IDG Contributor Network: Introducing Named Data Networking

While computing, storage and programming have dramatically changed and become simpler and cheaper over the last 20 years, however, IP networking has not. IP networking is still stuck in the era of mid-1990s.Realistically, when I look at ways to upgrade or improve a network, the approach falls into two separate buckets. One is the tactical move and the other is strategic. For example, when I look at IPv6, I see this as a tactical move. There aren’t many business value-adds.In fact, there are opposites such as additional overheads and minimal internetworking QoS between IPv4 & v6 with zero application awareness and still a lack of security. Here, I do not intend to say that one should not upgrade to IPv6, it does give you more IP addresses (if you need them) and better multicast capabilities but it’s a tactical move.To read this article in full, please click here

Private cloud spending is increasing, not decreasing

Once again, IDC has thrown cold water on the notion that enterprises are looking to shut down their data centers and instead are looking to grow them. And a new form of IT spending is taking place.The latest worldwide market study by International Data Corporation (IDC) found revenue from sales of IT infrastructure equipment grew 48.4 percent year over year in the second quarter of 2018 to $15.4 billion.Quarterly spending on public cloud IT infrastructure was $10.9 billion in the second quarter of 2018, a 58.9 percent year-over-year growth, while private cloud spending reached $4.6 billion, an increase of 28.2 percent year over year.[ Check out What is hybrid cloud computing and learn what you need to know about multi-cloud. | Get regularly scheduled insights by signing up for Network World newsletters. ] By end of the year, IDC projects public cloud spending will account for 68.2 percent of total IT equipment spending, growing at an annual rate of 36.9 percent. That’s not surprising, though, as Amazon, Microsoft, Google, etc., buy servers in the tens of thousands of units.To read this article in full, please click here

Private cloud spending is increasing, not decreasing

Once again, IDC has thrown cold water on the notion that enterprises are looking to shut down their data centers and instead are looking to grow them. And a new form of IT spending is taking place.The latest worldwide market study by International Data Corporation (IDC) found revenue from sales of IT infrastructure equipment grew 48.4 percent year over year in the second quarter of 2018 to $15.4 billion.Quarterly spending on public cloud IT infrastructure was $10.9 billion in the second quarter of 2018, a 58.9 percent year-over-year growth, while private cloud spending reached $4.6 billion, an increase of 28.2 percent year over year.[ Check out What is hybrid cloud computing and learn what you need to know about multi-cloud. | Get regularly scheduled insights by signing up for Network World newsletters. ] By end of the year, IDC projects public cloud spending will account for 68.2 percent of total IT equipment spending, growing at an annual rate of 36.9 percent. That’s not surprising, though, as Amazon, Microsoft, Google, etc., buy servers in the tens of thousands of units.To read this article in full, please click here

Radical shake-up proposed for the internet

Changes may be in the cards for the internet. Primarily, the global information system that we know as the World Wide Web could be up for some radical blockchain-concept re-thinking. It could take us back in time, but in a good way, according to some experts.Mass decentralization, which includes the shifting the control of data from corporations to individuals, is what they propose.“If you think of our existing web, it was originally designed to be decentralized, but over the years, we've come to see 90 percent of the traffic going through three or four different companies,” says Mitra Ardron, Technical Lead for Decentralization, at Internet Archive, which hosted the Decentralized Web Summit in San Francisco this summer. He was quoted on the conference’s website.To read this article in full, please click here

BIB 56: Corporate Scar Tissue with Chris Swan

I got together to Chris Swan @cpswan to record a two beer networking. Through my own staggering incompetence the video hasn’t turned out but the audio is just fine. Chris a leader in service practice and the conversation talks about how organisational scar tissue. He recently attended the European IDC CIO summit in Lisbon which […]

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Technologies that Didn’t: The OSI Protocol Stack

The Open Systems Interconnect (OSI) model is the most often taught model of data transmission—although it is not all that useful in terms of describing how modern networks work. What many engineers who have come into network engineering more recently do not know is there was an entire protocol suite that went with the OSI model. Each of the layers within the OSI model, in fact, had multiple protocols specified to fill the functions of that layer. For instance, X.25, while older than the OSI model, was adopted into the OSI suite to provide point-to-point connectivity over some specific kinds of physical circuits. Moving up the stack a little, there were several protocols that provided much the same service as the widely used Internet Protocol (IP). @ECI

Prioritizing Indigenous Connectivity in North America

It never ceases to amaze me how quickly technology evolves. In 2007, the iPhone was released and dramatically transformed the way we communicate. Then, less than three years later, the first iPad hit consumer shelves and revolutionized personal computing. Now, Internet service providers around the world are racing to deploy the infrastructure needed to fuel our transition into smart cities of increasingly connected homes and driverless cars.

While some major U.S. cities are set to get home access to 5G broadband speeds as soon as this month, there are still many people living in rural and remote Indigenous communities across North America that struggle to open an email.

It’s time to get our priorities straight. The Internet is a powerful tool transforming virtually every aspect of our lives. But we can’t move forward if anyone is left behind. Indigenous voices must count in our digital future.

The Canadian Radio-television and Telecommunications Commission (CRTC) recently made an important step in the right direction when it released details of its $750 million Broadband Fund to improve connectivity in underserved and remote regions of Canada.

The fund makes an important commitment to ensure applicants consult with First Nations, Inuit, and Métis and Continue reading

Graceful upgrades in Go

Graceful upgrades in Go

The idea behind graceful upgrades is to swap out the configuration and code of a process while it is running, without anyone noticing it. If this sounds error prone, dangerous, undesirable and in general a bad idea – I’m with you. However, sometimes you really need them. Usually this happens in an environment where there is no load balancing layer. We have these at Cloudflare, which led to us investigating and implementing various solutions to this problem.

Graceful upgrades in Go
Dingle Dangle! by Grant C. (CC-BY 2.0)

Coincidentally, implementing graceful upgrades involves some fun low-level systems programming, which is probably why there are already a bajillion options out there. Read on to learn what trade-offs there are, and why you should really really use the Go library we are about to open source. For the impatient, the code is on github  and you can read the documentation on godoc.

The basics

So what does it mean for a process to perform a graceful upgrade? Let’s use a web server as an example: we want to be able to fire HTTP requests at it, and never see an error because a graceful upgrade is happening.

We know that HTTP uses TCP under the Continue reading

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