Networks

New Hair-Like Plastic Polymer Cable Can Transmit Data Ten Times Faster Than Copper

Scientists and engineers are always looking for ways to speed up and more efficiently configure computing devices to maximize data flow. There are a lot of applications today that require the exchange of huge volumes of data in real-time. MIT scientists have created a hair-like plastic polymer cable that can transmit data ten times faster than copper USB cables. more

Some Thoughts on the Recent DNS Operations, Analysis, and Research Centre Workshop, OARC-35

The DNS Operations, Analysis, and Research Centre (DNS-OARC) convened OARC-35 at the start of May. Here are some thoughts on a few presentations at that meeting that caught my attention... These days it seems that the term "the digital economy" is synonymous with "the surveillance economy." Many providers of services on the Internet spend a lot of time and effort assembling profiles of their customers. These days, it's not just data in terms of large-scale demographics but the assembling of large sets of individual profiles.  more

Connectivity Starts at Home

Today's Internet is just one application of the powerful idea of best-efforts connectivity. The home router (NAT) decouples the connectivity within the home from the larger internet, enabling innovation that leverages the Internet without being limited by it. Connectivity starts at home. Your computers and devices all interconnect locally. In a sense, the larger Internet is just one more connected device. You are free to innovate and experiment without asking a provider's permission. more

The Insecurity of Ambiguous Standards

Why are networks so insecure? One reason is we don't take network security seriously. We just don't think of the network as a serious target of attack. Or we think of security as a problem "over there," something that exists in the application realm, that needs to be solved by application developers. Or we think the consequences of a network security breach as "well, they can DDoS us, and then we can figure out how to move load around, so if we build with resilience (enough redundancy)... more

Notes from the DNS Privacy Workshop at NDSS 2021

For many years the consuming topic in DNS circles was that of the names themselves. If you wind the clock back twenty years or so, you will find much discussion about the nature of the Internet's namespace. Why were there both generic top-level labels and two-letter country codes? If we were going to persist with these extra-territorial generic country codes in the namespace, then how many should there be? Who could or should manage them? And so on. more

Notes from NANOG 81

As the pandemic continues, the network operator community continues to meet online. NANOG held its 81st meeting on February 8 and 9, and these are my notes from some of the presentations at that meeting... Ethernet, developed in 1973 at Xerox PARC, was a revolutionary step in network architectures in many ways. The common bus architecture imposed several constraints on the network that have echoed through the ensuing four decades in all kinds of ways. more

Let’s Not Forget About Solar Flares

As the world becomes more and more reliant on electronics, it's worth a periodic reminder that a large solar flare could knock out much of the electronics on earth. Such an event would be devastating to the Internet, satellite broadband, and the many electronics we use in daily life. A solar flare is the result of periodic ejections of matter from the sun into space. Scientists still aren't entirely sure what causes solar flares, but they know that it's somehow related to shifts in the sun's magnetic field. more

An IPv6 Update for 2020

The Australian Domain Name Administration, AUDA, recently published its quarterly report for the last quarter of 2020. The report contained the interesting snippet: "The rapid digitization of our lives and economy -- necessitated by COVID-19 -- continued to underpin strong growth in .au registrations. New .au domains created in December 2020 were up 23 percent from December 2019, while total domains under management were up more than 2.1 percent over the same period." more

The Netizen’s Guide to Reboot the Root (Part II)

The first part of this series explained how Amendment 35 to the NTIA-Verisign cooperative agreement is highly offensive to the public interest. But the reasons for saving the Internet are more fundamental to Western interests than a bad deal made under highly questionable circumstances. One of the world's foremost experts on conducting censorship at scale, the Chinese Communist Party's experience with the Great Firewall... more

The Christmas Goat and IPv6 (Year 11)

This is the fourth year now with almost no snow during the Christmas Goat event here in Sweden, and so once again, you get a photo without any snow. Because of Covid-19 and 99.99% people working for home, I have not even seen the Goat live this year... What a crazy year it has been! more

Unintended Consequences of Submarine Cable Deployment on Internet Routing

The network layer of the Internet routes packets regardless of the underlying communication media (Wifi, cellular telephony, satellites, or optical fiber). The underlying physical infrastructure of the Internet includes a mesh of submarine cables, generally shared by network operators who purchase capacity from the cable owners. As of late 2020, over 400 submarine cables interconnect continents worldwide and constitute the oceanic backbone of the Internet. more

DNS Oblivion

Technical development often comes in short, intense bursts, where a relatively stable technology becomes the subject of intense revision and evolution. The DNS is a classic example here. For many years this name resolution protocol just quietly toiled away. The protocol wasn't all that secure, and it wasn't totally reliable, but it worked well enough for the purposes we put it to. more

Protecting an Enterprise from Cyber Catastrophe

We are suffering an epidemic of cyberattacks while in a viral pandemic. This post is for those who have responsibility for assuring that the IT-based services offered by their enterprise can quickly recover in the case of successful cyber-attack or other disaster. University of Vermont Medical Center (UVMMC) is an excellent hospital. I owe my life to treatment there and am grateful for both the skill and the kindness of UVMMC staff. They have been devastated by a cyber-attack. more

Cybersecurity Considerations in the Work-From-Home Era

Verisign is deeply committed to protecting our critical internet infrastructure from potential cybersecurity threats, and to keeping up to date on the changing cyber landscape. Over the years, cybercriminals have grown more sophisticated, adapting to changing business practices and diversifying their approaches in non-traditional ways. We have seen security threats continue to evolve in 2020, as many businesses have shifted to a work from home posture due to the COVID-19 pandemic. more

The End of Broadband Networks as We Know Them

A group of major telecommunications companies -- Vodafone, BT, Telefonica and Deutsche Telekom -- recently announced something a bit unexpected. In the Open BNG Operator Position Paper, they call for a fundamental, industry-wide change to the way broadband networks are built. Specifically, they advocate for collaboration throughout the telco world, with a convergence around open broadband network gateways (BNGs). more