Blogs / Personal blogs

Geoff Huston

potaroo.net

The most recent North American Network Operators Group (NANOG) meeting was held in mid-October 2026 in Miami. The opening keynote presentation was by Telegeography's Paul Brodsky on the topic of global Internet Infrastructure. His presentation highlighted a structural shift in global Internet infrastructure, with…

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1

460M Indian Internet Users Are Now on IPv6

NOTE : This data is generated by using the ISO 3166 economy code information provided in the allocation and assignment statistics reports as generated by the Regional Internet Registries. This code reflects the economy in which the entity to whom the allocation or assignment was made is located, but does not…

2

The IPv6 Transition

I wrote an article in May 2022, asking “Are we there yet?” about the transition to IPv6. At the time I concluded the article on an optimistic note, observing that we may not be ending the transition just yet, but we are closing in. I thought at the time that we won’t reach the end of this transition to IPv6 with a…

3

A transport protocol's view of Starlink

Digital communications systems always represent a collection of design trade-offs. Maximising one characteristic of a system may impair others, and various communications services may chose to optimise different performance parameters based on the intersection these design decisions with the physical characteristics…

4

DNS Wars

NANOG is now quite an institution in the Internet, particularly in the North American Internet community. It was an offshoot of the Regional Techs meetings, which were part of the NSFNET framework of the late 80s and early 90s. NANOG has thrived since then and is certainly one of the major network operational forums…

5

IP Addresses Through 2025

It's 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.

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IP addresses through 2024

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.

7

Geolocation and Starlink

"Where are you?" is not an easy question to answer on the Internet. The telephone system's address plan embedded a certain amount of physical location information in the fixed line network, and a full E.164 telephone number indicated your location in terms of your country, and your area within that country. The…

12

Using LEOs and GEOs

Once you head away from the areas that are serviced by modern terrestrial cable infrastructure, the available digital communications options are somewhat limited. Some remote areas are served using High Frequency radio systems, using radio signals that bounce off the ionosphere to provide a long distance, but limited…

13

Comparing TCP and QUIC

There is a common view out there that the QUIC transport protocol (RFC 9000) is just another refinement to the original TCP transport protocol [ 1 ] [ 2 ]. I find it hard to agree with this sentiment, and for me QUIC represents a significant shift in the set of transport capabilities available to applications in terms…