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I have on my desk a rather small tube. It’s a little under 2cm in diameter, 6 cm long, and looks like it’s made from a dull white polycarbonate material. At the end I can see a copper inner tube, and inside that another polycarbonate layer, and then a smaller…
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. Cache Poisoning Protection Deployment Experience In a world where every DNS name is DNSSEC-signed and every DNS client validates all received…
I must admit that I’m a keen follower of the analysis work done by Jon Brewer. He manages to pull together excellent research with valuable insights, and I look forward to his presentations. Jon can be found at Telco2. The second half of this article, looking at the inventory of…
ISP Column – April 2022 AUSNOG was held in September 2021 December 2021 April 2022 in Sydney over two days. Here are a few notes from presentations at the meeting that I found interesting. Automating Network Management Network management was never the “sexy” part of the Internet. For decades network…
The RIPE community held a meeting in November. Like most community meetings in these Covid-blighted times it was a virtual meeting. Here’s my notes from a few presentations that piqued my interest. All the material presented at the meeting can be found at https://ripe83.ripe.net/. Vulnerability Disclosure Responsible Disclosure is a…
The network operations community is cautiously heading back into a mode of in person meetings and the NANOG meeting at the start of November was a hybrid affair with a mix of in-person and virtual participation, both by the presenters and the attendees. I was one of the virtual mob,…
It was only a few weeks back, in July of this year, where I remarked that an Akamai report of an outage was unusual for this industry. It was unusual in that it was informative in detailing their understanding of the root cause of the problem, describing the response that…
The telephone network had a remarkably clear overriding service objective: It had to sustain a human conversation. Now this must be able to carry a signal which is a human voice. To be discernible to human listeners, its necessary to carry audio frequencies of between 300 and 3,500 Hz. Most…
Much has been said about the criticality of the small coterie of large-scale content distribution platforms and their critical role in today’s Internet. These days when one of the small set of core content platforms experiences a service outage then it’s mainstream news, as we saw in June of this…
As the pandemic continues, the network operational community continues to meet online. NANOG held its 81st meeting on February 8 and 9, and these are my notes from some of the presentations at that meeting. A Brief History of Router Architecture Ethernet, developed in 1973 at Xerox PARC, was a…
