IPv6 Performance

Every so often I hear the claim that some service or other does not support IPv6 not because of some technical issue, or some cost or business issue, but simply because the service operator is of the view that IPv6 offers an inferior level service as compared to IPv4, and…


Transport Protocols

One of the early refinements in the Internet protocol model was the splitting of the original Internet protocol from a single monolithic specification [1] into the Internet Protocol (IP) and a pair of transport protocols. The Internet Protocol layer is intended to be used by the internal switches within the…


ARIN 36 Meeting Report

I attended the ARIN 36 meeting that was held in Montreal in October, immediately following NANOG 65. The logistics of the meeting were up to ARIN’s high standards: the agenda, the discussion guides, the information provided to attendees was well executed, as usual. The agenda included a number of policy…


NANOG 65 Report

NANOG 65 was once again your typical NANOG meeting: a set of operators, vendors, researchers and others for 3 days, this time in Montreal in October. Here’s my impressions of the meeting. Keynote The opening keynote was from Jack Waters from Level 3, which looked back over the past 25…


DNS OARC Fall Workshop 2015 Report

The DNS Operations, Analysis and Research Centre holds a 2 day workshop twice a year. These are my impressions of the Fall 2015 workshop, held at the start of October in Montreal. At the outset I note that there was less of an emphasis on the coopting of the DNS…


Some Thoughts on the Open Internet

I’m sure we’ve all heard about “the Open Internet.” The expression builds upon a rich pedigree of term “open” in various contexts. For example, “open government” is the governing doctrine which holds that citizens have the right to access the documents and proceedings of the government to allow for effective…


Measuring the DNS Root KSK Keyroll

Measuring the Root KSK Keyroll A little over five years ago the root zone of the Domain Name System (DNS) was signed using the DNSSEC name-signing framework. The approach used to sign the root zone is a conventional one, using two keys. The root zone has a “working key”, the…


The Changing Mobile World

Today’s Internet is undoubtedly the mobile Internet. Sales of all other forms of personal computers are in decline and the market focus is now squarely on tablets, “smart” phones and wearable peripherals. In 2014 these providers sold 1.5 billion such devices into the global consumer market, and doubtless 2015’s numbers…


A Second Look at APNIC and IPv4 Address Exhaustion

It has been said often enough that its easy to make predictions; the tough part is getting them right! And in trying to predict the manner that APNIC will exhaust its remaining supply of IPv4 addresses I’m pretty sure that I did not get it right in the most recent…


Address Transfers in APNIC

In 2010 the Asia Pacific Regional Address Policy community adopted a policy that permitted address holders in the region to transfer address registration records, enabling an aftermarket in IPv4 addresses to operate with the support of the APNIC registry function. While APNIC was still able to allocate addresses to meet…