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Let’s take a second to look back some 50 years to the world of 1972, and the technology and telecommunications environment at that time. The world of 1972 was one populated by a relatively small collection of massive (and eye-wateringly expensive) mainframe computers that were tended by a set of…
IETF 114 was held in the last week of July 2022 as a hybrid meeting, with the physical meeting being held in Philadelphia. Here’s my notes on topics that attracted my interest from the week. IEPG The IEPG meetings are held each Sunday prior to the IETF week. These days…
As I see it, the DNS is the last remaining piece of glue that binds the Internet together. We lost IP address coherency within the Internet many years ago and the DNS is all that’s left. Consequently, the DNS is vital for the Internet. Perhaps the most critical question to…
Quick UDP Internet Connection (QUIC) is a network protocol initially developed and deployed by Google, and recently (May 2021) standardized in the Internet Engineering Task Force (IETF) (RFC 9000). In this article we’ll take a quick tour of QUIC and then look at the extent to which QUIC is being…
There was a common catch cry in the early 1990’s that “the Internet must be free!” Some thought this was a policy stance relating to rejection of imposed control over content. Others took this proposition more literally as in “free, like free beer!” It might sound naive today but there…
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…
There is an intriguing mention of “Server Push” in the specification of DNS over HTTPS (DoH) (RFC 8484). The RFC is somewhat vague in the description of server push, apart from noting a caveat that “extra care must be taken to ensure that the pushed URI is one that the…
The saga of the IPv6 transition continues to surprise us all. RFC 2460, the first complete effort at a specification of the IPv6 protocol was published in December 1998, more than twenty years ago. The entire point of IPv6 was to specify a successor protocol to IPv4 due to the…
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 bandwidth, service.…
It is a rare situation when you can create an outcome from two somewhat broken technologies where the outcome is not also broken. Unless each of the components can precisely complement each other such that a weakness in one can be covered by a strength in the other, then the…
