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–> The DNS Operations, Analysis, and Research Center (DNS-OARC) brings together DNS service operators, DNS software implementors, and researchers together to share concerns, information and learn together about the operation and evolution of the DNS. They meet between two to three times a year in a workshops format. The most…
The Internet’s Domain Name System (DNS) is implemented as a distributed database. The structure of the database mimics the structure of the name space itself, namely a hierarchy where each “node” (or “zone”) in the distributed database has a single “parent” node and some number of “child” or descendant nodes…
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. Back around 1992 the IETF gazed…
The first part of this annual 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…
At the start of each year, I’ve been reporting on the behaviour of the Internet’s inter-domain routing system over the previous 12 months, looking in some detail at some metrics from the routing system that can show the essential shape and behaviour of the underlying interconnection fabric of the Internet.…
This is a report on a feasibility study looking at an alternative trust anchor structure for the Resource Public Key Infrastructure (RPKI). Background In the early days of the Internet in the 1980’s when the Internet address plan used the Class A, B and C address structure, it appears that…
The IETF met in Prague in the first week of November 2023. I attended the meeting of the Measurement and Analysis of Protocols Research Group, and here are my impressions from that meeting. QUIC Topics QUIC is essentially a variant of TCP, but at the same time it also represents…
The IETF met in Prague in the first week of November 2023, and, as usual there was a flurry of activity in the DNS-related Working groups. Here’s a roundup of those DNS topics I found to be of interest at that meeting. Re-thinking the DNS Prior to IETF meetings there…
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 BGP networks mistakenly advertised a very large route collection to the Optus BGP network which caused the routers to malfunction in some manner. The problem was…
There was a draft that caught my attention during DNSOPS Working Group session at the recent IETF 118 meeting on the topic of “DNS IPv6 Transport Operational Guidelines”. This draft proposes to update an earlier guideline document with some new guidelines. The original document, RFC3901, titled “DNS IPv6 Transport Guidelines””,…
