Networks

The Internet and My 53 Years Online

With the upcoming celebration of the 50 years of the Internet, I'm trying to figure out how the traditional story misses the powerful idea that has made the Internet what it is -- the ability to focus on solutions without having to think about the network or providers. It's not the web -- thought that is one way to use the opportunity. The danger in a web-centric view is that it leads one to make the Internet better for the web while closing the frontier of innovation. more

US Telcos Withdrawing from DSL and Telephony Markets - A Case of Lobbying Power and Poor Regulation

During the last few months the US's main DSL providers AT&T and Verizon have begun retracting from the DSL and landline market in many rural and less commercially viable areas while concentrating on their wireless LTE ambitions. DSL and voice telephony provide relatively low returns, which can be whittled away through network maintenance costs, while LTE promises to deliver proportionately higher profits, based on exorbitant charges by data volume.  more

Cutting Through the Twitter DDoS Hype

There are a lot of theories flying around about why Twitter and other social media services got knocked offline yesterday. I've heard rumors about it being linked to political tension between Georgia and Russia. Others blame Iran for the outages. I'm not a political commentator, therefore I cannot comment on anyone's political views -- but I have some logic and common sense, and I can draw some objective conclusions. more

In a Networked World Knowing the Right Time Is Essential but How Accurate Are the Computer Clocks?

Computers have always had clocks. Well maybe not clocks as you might think, but digital computers have always had oscillators, and if you hook the oscillator to a simple counter then you have a clock. The clock is not just there to tell the time, although it can do that, nor is it there just to record the time when data files are created or modified, though it does that too. Knowing the time is important to many functions, and one of those is security. more

DNS Complexity Lessons

Recently, Bert Hubert wrote of a growing problem in the networking world: the complexity of DNS. We have two systems we all use in the Internet, DNS and BGP. Both of these systems appear to be able to handle anything we can throw at them and "keep on ticking." But how far can we drive the complexity of these systems before they ultimately fail? Bert posted a chart on the APNIC blog to illustrate the problem. more

Don’t Blame Open Recursives For DDoS Attacks and Why You Should Implement BCP38

There has been plenty of buzz and chatter on the Internet recently concerning a very large DDoS attack against CloudFlare, with coverage on their blog, the New York Times, and the BBC, among many others. While attacks of this nature are certainly nothing new, the scale of this attack was surprising, reported to hit 120Gbps. For a sense of scale, your average cable modem is only about 20Mbps, or about 0.016% of that bandwidth. more

Rebalancing Telco Infrastructure Investments

One of the reasons telecommunications has been so successful for more than 160 years is that it adopted a strategy that resulted in a seamless network all around the world. You can pick up a phone anywhere in the world and, with little or no instruction, make a call to anybody else in the world without worrying what phones and technology they are using on the other end of the line... But during that process the nature of the network operators changed. more

Lessons from Sandy: Building Networks and Cyber-Infrastructure to Survive Climate Change

Hurricane Sandy has been a badly needed wake up call for the Internet community as to the threat of climate change. Although most people have forgotten, Sandy is the second hurricane to hit New York in as many years with Irene last August and a third tropical depression headed to New York at the time of this writing. Two, supposedly once in a hundred year storms, within such a short time frame should even make the most die-hard denialist that something's afoot. more

The Over-Optimization Meltdown

In simple terms, Meltdown and Spectre are simple vulnerabilities to understand. Imagine a gang of thieves waiting for a stage coach carrying a month's worth of payroll. There are two roads the coach could take, and a fork, or a branch, where the driver decides which one to take. The driver could take either one. What is the solution? Station robbers along both sides of the branch, and wait to see which one the driver chooses. more

Google Not the Only Company Testing Wireless Access by High-Altitude Balloons

Oceus Networks Inc., a mobile 4G LTE broadband networking provider, recently demonstrated the efficacy of a deployable 4G LTE solution on a high-altitude balloon platform, which can be used to rapidly provide broadband coverage and communications services to first responders within the first 72 hours following an emergency or natural disaster. more

Complete Internet Shutdown Reported in Syria

While Syria's Internet disruptions in the recent past have been linked to Government's efforts to prevent cheating during national high school exams, today's complete Internet shutdown reported by Dyn Research is unknown and does not appear to be exam-related. more

Be Agile or Be Edged Out: “Live” from TM Forum 2017

I like a conference that's "Live". Not just a lively crowd coalescing together to passionately discuss and debate matters of common interests, but more so in the sense of physical presence: things you can feel and touch. In the case of the TM Forum Live! 2017 event, held last week at Nice, France, it's the Catalyst Pavilions where innovative solutions, best practices, and even exploratory experimentations were on full display. Do I mean that for an IT Operation Support Systems (OSS) and Business Support Systems (BSS) trade show, you can touch it? Yep. more

Spanish Joint-Network Investment in FttH Seeing Returns

Spain's economic anguish has had a number of repercussions for the country's telcos, with stable or declining revenue causing much nervousness as operators struggle to fund essential investment in spectrum and both fixed-line and mobile networks. Earlier this year Vodafone felt the pinch, announcing plans to cut its Spanish workforce by up to 1,000. Though general economic conditions have not helped, the move partly resulted from its own decisions. The company saw revenue drop for several quarters and so decided to save money by cutting handset subsidies. more

Tracking Outages

The idea of tracking data outages spawned from an early discussion on the outages forum including feedback from an outages survey about having a status page for (un)planned outages as a central resource. The purpose of such effort is to have a wider focus that one could view as opposed to having to check dozens of provider status pages. There were many ideas put forth but nothing really panned out and things kinda fell on the back burner. more

NANOG’s Edward McNair Delivers Keynote Address at CaribNOG 17

Edward Mc Nair, executive director of the North American Network Operators Group (NANOG), delivered the keynote at the seventeenth regional meeting of the Caribbean Network Operators Group (CaribNOG), held from April 10 to 12 at the Hilton in Bridgetown, Barbados. McNair's keynote focused on the important role that network operator groups, or NOGs, play in building an Internet that serves the specific needs of the people in the region. more