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Geoff Huston

10 Jul, 2010 04:23 PM
Addressing in 2016 by Geoff Huston — last modified 08 Feb, 2017 01:27 PM

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.

Look Up! by Geoff Huston — last modified 27 Aug, 2018 10:08 AM

Far from being a vibrant environment with an array of competitive offerings, the activity of providing so-called “last mile” Internet access appears to have been reduced to an environment where, in many markets, a small number of access providers appear to operate in a manner that resembles a cosy cartel, strenuously resisting the imposition of harsher strictures of true competition.

BBR TCP by Geoff Huston — last modified 11 Oct, 2018 09:37 AM

The Internet was built using an architectural principle of a simple network and agile edges. The basic approach was to assume that the network is a simple collection of buffered switches and circuits. As packets traverse the network they are effectively passed from switch to switch.

BGP More Specifics: Routing Vandalism or Useful? by Geoff Huston — last modified 27 Jun, 2017 12:10 PM

The Border Gateway Protocol (BGP) is the routing protocol that keeps the Internet glued together. The public Internet is composed of some 58,000 component networks (BGP calls them “Autonomous Systems” [AS’s]), many of which are very small, while some are very large both in terms of geographical coverage and numbers of users.

Dealing with IPv6 Fragmentation in the DNS by Geoff Huston — last modified 30 Aug, 2017 01:48 PM

The IPv6 protocol introduced very few changes to its IPv4 predecessor. The major change was of course the expansion of the size of the IP source and destination address fields in the packet header from 32-bits to 128-bits. There were, however, some other changes that apparently were intended to subtly alter IP behaviour. One of these was the change in treatment of packet fragmentation.

Dealing with IPv6 Fragmentation in the DNS - Part 2 by Geoff Huston — last modified 30 Aug, 2017 01:44 PM

The first part of this article looked at what happens when an authoritative DNS server delivers fragmented UDP responses to DNS resolvers using IPv6. Now we measured the packet drop rate when sending fragmented packets to IPv6 end hosts.

What Drives IPv6 Deployment? by Geoff Huston — last modified 23 May, 2018 10:21 AM

It’s been almost seven years since World IPv6 Launch day on 6 June 2011 (*). In those seven years, we’ve managed to place ever-increasing pressure on the dwindling pools of available IPv4 addresses, but we have still been unable to complete the transition to an all-IPv6 Internet.

The Uncertainty of Measuring the DNS by Geoff Huston — last modified 18 Jul, 2018 01:11 PM

The period around the end of the nineteenth century and the start of the twentieth century saw a number of phenomenal advances in the physical sciences.

An Update on Securing BGP by Geoff Huston — last modified 14 Oct, 2018 12:34 PM

One way or another we’ve been working on various aspects of securing the Internet’s inter-domain routing system for many years.

Measuring the KSK Roll by Geoff Huston — last modified 01 Oct, 2018 12:07 PM

When viewed as a network infrastructure, looks can be very deceiving when looking at the DNS. It appears to be a simple collection of resolvers and servers. Clients pass their DNS name resolution queries to resolvers, who then identify and ask an appropriate authoritative name server to resolve the DNS name, and the result is passed back to the client.

DOH! DNS over HTTPS explained by Geoff Huston — last modified 12 Oct, 2018 03:22 PM

If you had the opportunity to re-imagine the DNS, what might it look like? Normally this would be an idle topic of speculation over a beer or two, but maybe there’s a little more to the question these days. We are walking into an entirely new world of the DNS when we start to think about what exactly might be possible when we look at DNS over HTTPS, or as it’s become more commonly known, DOH.

Has Internet Governance Become Irrelevant? by Geoff Huston — last modified 16 Nov, 2018 01:38 PM

A panel session has been scheduled at the forthcoming Internet Governance Forum (IGF) in Paris in November that speaks to the topic that Internet Governance is on a path to irrelevance. What's this all about?

Is the Internet Running Late? by Geoff Huston — last modified 30 Nov, 2018 12:37 PM

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.

Internet Economics is a Thing and we Need to Take Note by Geoff Huston — last modified 20 Dec, 2018 04:25 PM

In this article I talk about consolidation, the fact that more and more data traffic goes ‘dark’ and the importance of open measurement platforms and open data sets. We need public measurements that are impartial, accurate, comprehensive and of course unbiased as an essential precondition for the fair and effective operation of markets.