Worth Reading: Comments on the Wikileaks CIA Vault #7

The CIA didn’t remotely hack a TV. The docs are clear that they can update the software running on the TV using a USB drive. There’s no evidence of them doing so remotely over the Internet. If you aren’t afraid of the CIA breaking in an installing a listening device, then you should’t be afraid of the CIA installing listening software. —Errata Security

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Worth Reading: Web Scale Networking

In this episode of The New Stack Makers, we spoke to Josh Leslie, Chief Executive Officer, and JR Rivers, Chief Technology Officer and co-founder of Web-scale networking software provider Cumulus Networks. We discussed how to best define web-scale networking, and how Cumulus Linux is different from traditional networking solutions. They spoke to the need for inter-system communication for new workloads, and how that factors into building a software-defined data center. They told us about their company’s recent product release Cumulus Express, as well as its announcement around Facebook’s Backpack, an open network chassis. Our conversation included points about hyper-converged infrastructure, customer roadblocks, and the roadmap for Cumulus Networks. —The New Stack

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Worth Reading: When your code has to work

Douglas Crockford famously declared browsers to be “the most hostile software engineering environment imaginable,” and that wasn’t hyperbole. Ensuring that our websites work across a myriad of different devices, screen sizes and browsers our users depend on to access the web is a tall order, but it’s necessary. If our websites don’t enable users to accomplish the key tasks they come to do, we’ve failed them. —Smashing Magazine

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Tan Gate

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Worth Reading: The nuanced future of 5G

5G sounds like the successor to 4G cellular telephony, and indeed that is the intent. While the progression from 2G to 3G, to 4G and now 5G seems simple, the story is more nuanced. At CES last month I had a chance to learn more about 5G (not to be confused with the 5Ghz WiFi) as well as another standard, ATSC 3.0 which is supposed to be the next standard for broadcast TV. —CircleID

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Worth Reading: Keys to solving wicked problems

The incredible pace of change of the Internet — from research laboratory inception to global telecommunication necessity — is due to the continuing pursuit, development and deployment of technology and practices adopted to make the Internet better. This has required continuous attention to a wide variety of problems ranging from “simple” to so-called “wicked problems”. Problems in the latter category have been addressed through collaboration. This post outlines key characteristics of successful collaboration activities. —CircleID

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Worth Reading: Bouncing back to private clouds

There is an adage, not quite yet old, suggesting that compute is free but storage is not. Perhaps a more accurate and, as far as public clouds are concerned, apt adaptation of this saying might be that computing and storage are free, and so are inbound networking within a region, but moving data across regions in a public cloud is brutally expensive, and it is even more costly spanning regions. —The Next Platform

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Worth Reading: Creating an IXP in Denver

The word Internet is short for internetwork. It’s just a network of networks. So the more places you can connect those networks, the more robust the whole system is. That’s what Internet Exchange Points (“IXPs”) are. They’re the connection points where networks can connect to each other, and they’re a crucial part of the infrastructure of the Internet. In Europe, IXPs have traditionally been independent and are often run as nonprofits, whereas in North America, they’ve typically been owned and operated by commercial colocation facility operators or Internet Service Providers (ISPs). In the last several years, though, there’s been a movement in the US to build more independent, community-focused IXPs. IX-Denver is part of that movement. —The Internet Society

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Leaky Abstraction: An Example

The paper in question is from 2008, and the remedies have already been implemented in every BGP implementation I know of (in fact, getting rid of the scanner is something that just went into FR Routing). The paper can be found here, and a presentation based on the paper can be found here. They use a different example than mine in the paper—it’s a bit more subtle.

In this case, the abstraction is treating an AS as a single “thing” to provide stability in the larger routing system. But any time you have an abstraction, including summarization and aggregation, there is always some possibility the abstraction will leak. Here the leak is an internal route metric change “leaking” into an actual change in the path through the network, although both paths still exist. There are more subtle changes, such as a route metric change causing an update to be sent even though the path itself hasn’t even changed, but I chose this example to make it easier to understand.

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Worth Reading: The rise of the conversational interface

Eight trillion. That’s the number of text messages sent every year. For the record, that’s 23 billion texts sent every day. Or almost 16 million per minute. On July 7, 2016, Facebook reported that over one billion people now use Messenger, up 200 million since January 2016. As of February 1, 2016, WhatsApp logged one billion users on its platform. In case you didn’t know, Facebook owns WhatsApp. —A Little More Human

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Worth Reading: Cisco’s identity crisis

Our Cisco team has been reaching out to get feedback on our relationship with Cisco and its products — a healthy practice for any vendor. I’ve tried to be open, honest, and consistent in all our talks. As I mentally review our conversations, I conclude I’ve been contradictory. On one hand, I’ve talked about how the industry is changing and Cisco’s products need to evolve in a software-defined marketplace. At the same time, I’ve decried their decision to move last-generation data center products to the campus portfolio to make way for newer technology. —Eyvonne Sharp

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Automation

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Worth Reading: Ransomware for Dummies

Among today’s fastest-growing cybercrime epidemics is “ransomware,” malicious software that encrypts your computer files, photos, music and documents and then demands payment in Bitcoin to recover access to the files. A big reason for the steep increase in ransomware attacks in recent years comes from the proliferation of point-and-click tools sold in the cybercrime underground that make it stupid simple for anyone to begin extorting others for money. —Krebs on Security

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Worth Reading: Five jobs robots will take first

Oxford University researchers have estimated that 47 percent of U.S. jobs could be automated within the next two decades. But which white-collar jobs will robots take first? First, we should define “robots” (for this article only) as technologies, such as machine learning algorithms running on purpose-built computer platforms, that have been trained to perform tasks that currently require humans to perform. —Shelly Palmer

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CoDel and Active Queue Management

Buffering packets in a network is both good and bad. It is good because a buffer can hold packets from one stream while another stream’s packets are being processed, to take up and release short bursts of traffic, to hold and then release packets when there is a very short interruption on the wire (or during a route change), and in many other situations. However, queues are bad when there is a standing queue, which means a particular flow always has some number of packets in a particular queue along the path between the source and the destination. This normally occurs at the narrowest point along the path, or rather the link with the lowest bandwidth. In a previous post, I looked at BBR, a change to the way TCP computes its window sizes, that attempts to reduce the amount of traffic “in flight” between a sender and receiver to reduce the number of packets being held in a particular buffer along the way.

This post will consider another solution: CoDel. CoDel is essentially an improved tail drop mechanism that provides the correct signals to TCP to slow down its send rate, or rather to reduce the window size (and Continue reading

Worth Reading: Redliner

…due to the nature of rapid-growing web services like LinkedIn, we face big challenges when trying to measure service capacity limits. These challenges come from the constantly changing traffic shape, the heterogeneous infrastructure characteristics, and the evolving bottlenecks. In order to determine service capacity limits accurately and pinpoint capacity bottlenecks effectively, we need a solution that… —LinkedIn Engineering Blog

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Administravia 030417

Just a few notes on the blog site in general. I’ve rebuilt the sixty books pages without tables. I don’t know if this is better, but it does load a bit faster. I’ve also added links to my GoodReads and Feedly profiles just in case you’re interested in what I’m currently reading/read on a regular basis. I didn’t include all the RSS feeds I read in the shared Feedly profile, just general, culture, and technology.

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Worth Reading: The digital age produces binary outcomes

The digital age produces binary outcomes. Winners tend to win overwhelmingly—in war as well as in business. The Soviet Union crumbled in the late 1980s when American technology bested Soviet military spending, then estimated at a quarter of GDP. The enormous Russian bet on military power lost and Communism fell. America emerged from the Cold War with a degree of military superiority greater than any country in modern history. It also emerged with a technologically driven economy that had no real competitor, with Russia close to ruin after the collapse of Communism and China in an early stage of economic development. —American Affairs

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Pier into the Marsh

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Worth Reading: Current trends in machine learning

During the past decade, enterprises have begun using machine learning (ML) to collect and analyze large amounts of data to obtain a competitive advantage. Now some are looking to go even deeper – using a subset of machine learning techniques called deep learning (DL), they are seeking to delve into the more esoteric properties hidden in the data. The goal is to create predictive applications for such areas as fraud detection, demand forecasting, click prediction, and other data-intensive analyses. —The Next Platform

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