Recent Articles

 

Submarine Cable Resiliencey

March 2023

How do you protect a submarine cable from interference? Do you use more amour plating? Or laying the cable in a sea floor trench? Or simply lay more cables? Or do you head off into radio-based systems? More...

 


An Economic Perspective on Internet Centrality

March 2023

What sustains a digital monopoly in today's world? It's not the amassing of a huge workforce, or even having access to large pool of capital. It's not even the use of proprietary technologies that are not accessible to others. So why isn't the Internet fulfilling its vision of profound and intense competitive pressure in every part of the digital supply chain? Whjat is sustaining the domination of the digital world by a select group of behemoths? And, can we change this picture? More...

 


OARC 40

February 2023

OARC held a 2-day meeting in February, with a set of presentations on various DNS topics. Here’s some observations that I picked up from the presentations in that meeting. More...

 


To DNSSEC or Not?

February 2023

DNSSEC adds a digital signature to DNS resource records, allowing a client resolver to determine the authenticity of a DNS answer, if they so choose. You would think that by now, with a widespread appreciation of just how toxic the Internet can be, anything that allows a user to validate the response they receive from a DNS query would be seen as a huge step forward, and we would all be clamoring to use it. Yet the take up of DNSSEC has been less than enthusiastic. Why is this? More...

 


The Root Zone of the DNS Revisited

February 2023

The DNS is a remarkably simple system. You send it queries and you get back answers. However, the DNS is simple in the same way that Chess or Go are simple. They are all constrained environments governed by a small set of rigid rules, but they all possess astonishing complexity. More...

 


IP Addresses through 2022

January 2023

Time for another annual roundup from the world of IP addresses. Let's see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself. More...

 


BGP in 2022 - BGP Updates

January 2023

The first part of this report looked at the size of the routing table and looked at some projections of its growth for both IPv4 and IPv6. However, the scalability of BGP as the Internet’s routing protocol is not just dependant on the number of prefixes carried in the routing table. Dynamic routing updates are also part of this story. If the update rate of BGP is growing faster than we can deploy processing capability to match then the routing system will lose coherence, and at that point the network will head into periods of instability. This second part of the report will look at the profile of BGP updates across 2022 to assess whether the stability of the routing system, as measured by the level of BGP update activity, is changing. More...

 


BGP in 2022 - The Routing Table

January 2023

This past year marks a significant point in the evolution of the Internet where the strong growth numbers that were a constant feature of the past thirty years are simply not present in the data. The Internet’s growth is slowing down significantly. Have we got to the point of market saturation and there is no more demand capacity to fuel further growth? Or are we reeling from the combinations of a global pandemic, turmoil in energy markets and the signs of increased climate instability so that we are no longer as interested to throw more resources into more network infrastructure investment? Let’s take a look at the BGP view of 2022 and see how these larger economic and social considerations are reflected in the behaviour of the Internet’s inter-domain routing system. More...

 


Is Secured Routing a Market Failure?

December 2022

The Internet largely operates in a space defined by markets rather than an intricate framework of regulation. Using a lens of market dynamics and looking at the level to which market-based incentives exist for actors, is the adoption of routing security heading in the direction of market failure? If so, then how should we respond? More...

 


The DNS at the IGF

December 2022

I was invited to participate in a session at IGF 2022 that was devoted to the workings of the DNS. I’d like to share my contribution to this session with my thoughts on where the DNS is headed. More...

 


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