One way or another we've been working on various aspects of securing the Internet's inter-domain routing system for many years. I recall presentations dating back to the late '90's that point vaguely to using some form of a digital signature on BGP updates that would allow a BGP speaker to assure themselves as to the veracity of a route advertisement. more
There have been a number of occasions when the Internet Engineering Task Force (IETF) has made a principled decision upholding users' expectations of privacy in their use of IETF-standardised technologies. (Either that, or they were applying their own somewhat liberal collective bias to the technologies they were working on!) The first major such incident that I can recall is the IETF's response to the US CALEA measures. more
An interesting new paper from the Naval Postgraduate School describes what appears to be an interesting new twist on spam filtering, looking at the characteristics of the TCP session through which the mail is delivered. They observe that bots typically live on cable or DSL connections with slow congested upstreams. ... This paper tries to see whether it would be practical to use that info to manage spam in real time. more
A new IETF draft has been published that specifies a new HTTP status code for legally restricted resources. That is, if the government restricts your access to the web page, return this code (similar to how something not found is a 404). The error code: 451. From the Internet Draft, if the user tries to access a page, but access to the page is restricted by the government, display the following... more
In research, one of the important steps is to identify the problem that needs exploration. Another step is to identify how to find a solution. Once it is possible to agree on the nature of the problem, then it begins to be a matter of how to approach the problem. more
We're edging closer every day to seeing WiFi 6 in our homes. WiFi 6 will be bolstered by the newly approved 6 GHz frequency, and the combination of WiFi 6 and 6 GHz spectrum is going to revolutionize home broadband. I don't think many people understand how many of our home broadband woes are caused by current WiFi technology. WiFi has been an awesome technology that freed our homes from long category 5 wires everywhere, but WiFi has a basic flaw that became apparent when homeowners started to buy hordes of WiFi-enabled devices. more
ome 50 years ago, at the Palo Alto Research Centre of that renowned photocopier company Xerox, a revolutionary approach to local digital networks was born. On the 22nd of May 1973, Bob Metcalf authored a memo that described "X-Wire," a 3Mbps common bus office network system developed at Xerox's Palo Alto Research Center (PARC). more
How do we get more feedback from the operators of networks back into the standards process of the Internet Engineering Task Force (IETF)? How do we help know whether the open standards being developed within the IETF reflect the operational realities of the networks into which those standards will be deployed? If we could get more network operators participating in the IETF standards process, would that result in better standards that are deployed faster? more
Want to easily show people where a specific submarine cable goes? Or what cables terminate in a particular location? Last year I wrote about Telegeography's cool interactive submarine cable map and how useful it is to understand the submarine cable side of Internet infrastructure. In that article I mentioned how great it would be if you could get a link for a particular cable or location that you could pass along to other people. more
The last few weeks have reinforced the importance of modern communication networks to societies. Health care providers, schools, governments, and businesses all rely on networks that enable us to connect and collaborate remotely. Had we encountered a similar pandemic ten years ago, we would not have been able to continue our activities on the level that is possible today. more
Near the end of the first decade of this century, the world reached an Internet milestone. The number of Internet-connected devices surpassed the number of people alive on planet Earth. At the time, seven billion devices had already been connected to the Internet, and this went completely unnoticed by most people. This moment represented an important sign of the rapid pace in which we are adopting technology and embracing Internet connectivity. more
Technical development often comes in short, intense bursts, where a relatively stable technology becomes the subject of intense revision and evolution. The DNS is a classic example here. For many years this name resolution protocol just quietly toiled away. The protocol wasn't all that secure, and it wasn't totally reliable, but it worked well enough for the purposes we put it to. more
Earlier this month, Avaya held a new type of customer event in Toronto, called Evolutions. They have been looking for better ways to bring customers together, so aside from their global event, they've put together Evolutions, which has a regional focus. The first one was recently held in Mexico to great success, and my understanding is that Canada was the next trial event, and that's what I attended in downtown Toronto... I'm almost certain I was the only Canadian analyst invited, so this may well be the only place you'll hear about Evolutions. more
Of all the patently false and ridiculous articles written this month about the obscure IANA transition which has become an issue of leverage in the partisan debate over funding the USG via a Continuing Resolution, this nonsense by Theresa Payton is the most egregiously false and outlandish. As such, it demands a critical, nearly line by line response. more
Last June I wrote an article titled "The IETF's Other Diversity Challenge" where I discussed the positive steps the Internet Engineering Task Force (IETF) is taking to increase the diversity of its participants and raised a potentially overlooked demographic: Network Operators. That essay was a problem statement of sorts, and I was long ago taught that you should only raise problems that you have a solution for, or are at least willing to help solve. more