Networks

Networks / Recently Commented

Internet Visionaries Honored with Postel Service Award

The Internet Society has announced the 2024 Jonathan B. Postel Service Award recipients, honoring Steve Crocker and Xing Li for their pioneering work in advancing the global Internet infrastructure. more

Analysis of the Global IT Breakdown Caused by Microsoft-CrowdStrike

The Optus outage in Australia from last year was immediately on my mind when on Friday afternoon a similar event swept, this time, across the world. Also, in this case it was a software update that caused the problem. This time from global security software provider CrowdStrike. The culprit appears to be an update to the CrowdStrike Falcon platform, a security monitoring tool widely deployed by businesses and organisations on Microsoft desktop computers and notebooks. more

Global IT Outage Disrupts Airlines, Businesses, and Hospitals

A massive IT glitch originating from a software update by cybersecurity firm CrowdStrike has caused significant disruptions worldwide, impacting airlines, businesses, medical facilities, and broadcasters. The issue, identified as a faulty update in Microsoft cloud services, led to widespread outages early Friday. more

Do We Need IPv4 at Home/SOHO Any More?

CLAT/NAT64 is utilized across many mobile networks globally, and I am only talking about Ethernet and Wi-Fi in home and small office/home office (SOHO) environments. I experimented by completely disabling IPv4 at home and established a SSID where my MacBook Pro operates without an actual IPv4 address. The MacBook supports CLAT (RFC 6877), and by implementing PREF64 (RFC 8781) and DHCP Option 108 (RFC 8925) in my network, I was able to achieve a 100% IPv6 environment. more

The Christmas Goat and IPv6 (Year 14)

A new year and a new goat with new conditions, the goat was slowly eaten by jackdaws, and in the end, almost only the frame remained. This was really slow TV for the devastation… You can read more on Wikipedia about the devastating jackdaws and the straw... 36% IPv6 is equal to last year, and I had high hopes as Telia (AS3301) has made great progress in IPv6 and that Sweden should be the dominant country.  more

Call the Routing Police!

There was a somewhat unfortunate outage for a major communications service provider in Australia, Optus, in mid-November. It appears that one of their peer Border Gateway Protocol (BGP) networks mistakenly advertised a very large route collection to the Optus BGP network, which caused the routers to malfunction in some manner. more

Notes from NANOG 89: Trust and Network Infrastructure

Trust is such a difficult concept in any context, and certainly, computer networks are no exception. How can you be assured that your network infrastructure is running on authentic platforms, both hardware and software and its operation has not been compromised in any way? more

China Mandates IPv6 for Router Manufacturers Starting December 1

In a significant move to advance IPv6 adoption, China's Ministry of Industry and Information Technology has directed local router manufacturers to default to the IPv6 protocol from December 1, 2023 onwards. more

What Happened to Quantum Networks?

A few years ago, there were a lot of predictions that we'd see broadband networks converting to quantum technology because of the enhanced security. As happens with many new technologies, quantum computing is advancing at a slower pace than the wild predictions that accompanied the launch of the new technology. more

The Causes of Network Outages: Underlying Causes, Growing Threats and Industry Implications

The Uptime Institute (UI) is an IT industry research firm best known for certifying that data centers meet industry standards. UI issues an annual report that analyzes the cause of data center outages. The causes for data center outages are relevant to the broadband industry because the same kinds of issues shut down switching hubs and Network Operations Centers. more

Happy 50th Birthday Ethernet

ome 50 years ago, at the Palo Alto Research Centre of that renowned photocopier company Xerox, a revolutionary approach to local digital networks was born. On the 22nd of May 1973, Bob Metcalf authored a memo that described "X-Wire," a 3Mbps common bus office network system developed at Xerox's Palo Alto Research Center (PARC). more

50 Years of Ethernet

The idea for Ethernet was born fifty years ago in May 1973 when Robert Metcalf coined the word Ethernet. He had been studying ALOHAnet, developed at the University of Hawaii in 1971 and was the first public demonstration of a wireless packet data network. Metcalf used the work Ethernet as a reference to luminiferous aether, a concept postulated in the 17th century to explain how light could be transmitted through a vacuum. more

Building a More Secure Routing System: Verisign’s Path to RPKI

At Verisign, we believe that continuous improvements to the safety and security of the global routing system are critical for the reliability of the internet. As such, we've recently embarked on a path to implement Resource Public Key Infrastructure (RPKI) within our technology ecosystem as a step toward building a more secure routing system. In this blog, we share our ongoing journey toward RPKI adoption and the lessons we've learned as an operator of critical internet infrastructure. more

RIPE 86 Bites: Encryption and Active Network Management

Change is hard, and the larger the system, the slower the pace of change. There are just so many systems that need to change their behaviors, and the motivations of users, vendors, service providers, content generators and many others all vary. Getting all of us to change some aspect of our technology, platform or application set is hard, if not impossible, to orchestrate such that it happens at the same time. more

RIPE 86 Bites: What’s the Time?

A little appreciated aspect of our digital infrastructure is just how dependent we are on access to time. Disrupting the time base can not only lead to disruption in communications but can result in various forms of compromise of the integrity of communications. Accurate time was all but unobtainable for centuries, and then, as we spent significant sums devising even more accurate timekeeping instruments, accurate time became a specialized service. more