Networks

Networks / Featured Blogs

High Performance DNS Needs High Performance Security

There's been a lot of emphasis on DNS performance lately because faster DNS contributes directly to a better user experience. There's an interesting flipside to DNS performance though, higher performance DNS servers may be better targets for cache poisoning attacks. Faster servers give attackers more opportunities to insert fake entries into the DNS - speed can kill (or at least inflict a nasty wound!) so it's important to understand the security implications if you're looking to upgrade DNS performance. more

A Report on the OECD/BEREC Workshop on Interconnection and Regulation

I presented at a OECD/BEREC workshop that was held on the 20th June in Brussels, and I'd like to share some personal impressions and opinions from this workshop. The OECD/BEREC workshop was a policy-oriented peering and exchange forum. It was not a conventional operational peering forum where the aim is to introduce potential peers to each other and facilitate peer-based interconnection of network operators, but a workshop that involved both network operators and various national and EU regulators, as well has having inputs from the OECD. more

Medical Body Area Networks

The Federal Communications Commission (FCC) in Washington has advanced its wireless health care agenda by adopting rules that will enable Medical Body Area Networks (MBANs), low-power wideband networks consisting of multiple body-worn sensors that transmit a variety of patient data to a control device. MBANs provide a cost effective way to monitor every patient in a healthcare institution, so clinicians can provide real-time and accurate data which allows them to intervene if necessary. more

Measuring IPv6 - Country by Country

Some years ago a report was published that ranked countries by the level of penetration of broadband data services. You can find the current version of that report at the OECD web site. This ranking of national economies had an electrifying impact on this industry and upon public policies for broadband infrastructure in many countries. Perhaps this happened because there were some real surprises lurking in the numbers at the time. more

IPv6 and IP Convergence: Are International Treaties About to Govern the Internet?

Contributing to international telecommunications standards, not in the IETF but in a more august and imposing body, the ITU-T, part of the United Nations, was quite an experience. Still called CCITT in those days, it was formal and solemn; everybody was part of and sat with their national delegation, countries were aligned in alphabetical order; nobody spoke out of turn, every word was simultaneously translated in the three official languages of the time and we wore suit and tie.  more

A Closer Look at the AIP Internet Draft Proposal

Just in time for ICANN's 44th meeting next week, a new Internet Draft has turned up, purporting to fix the centralization of the DNS. The draft has received some attention, including an article in PC World. It isn't entirely clear what the real purpose of the draft is, but it is hard to credit the notion that it is solving any technical problem. Without examining the reasons why the draft exists, I want to debunk a claim in it. more

Occam’s ITRs

It's been a quarter of a century since the world's governments convened to draft up a common set of regulations about the conduct of international telecommunications. In December of 2012 the world's governments will convene to reconsider these regulations, to hopefully sign an updated set of regulations. This time around, this activity is generating considerable levels of public interest. Congressional hearings in the United States have been held, and various pronouncements of intent from various governmental, regional, and industry groups have been made. more

Botnet Metrics and Calibration

As ISP's continue to spin up their anti-botnet defenses and begin taking a more active role in dealing with the botnet menace, more and more interested parties are looking for statistics that help define both the scale of the threat and the success of the various tactics being deployed... To overcome this problem there are several initiatives trying to grapple with this problem at the moment.. Obviously, if every ISP was using the same detection technology, in the same way, at the same time, it wouldn't be such a difficult task. Unfortunately, that's not the case. more

Measurement Results from World IPv6 Launch

As announced on RIPE Labs we monitored the behaviour of a number of networks that participated in the World IPv6 Launch on 6 June 2012. For that, we looked at the full list of participating organisations as shown on the ISOC website and chose 50 websites from that list. We looked at 'interesting' sites and at geographic distribution. We also tried to find a good mix of networks that had IPv6 switched on already and those that didn't have IPv6 deployed at the time they registered on the ISOC web site. more

Why CDNs Are Critical to Future of R&E Networks, Big Data and the Internet

Netflix has announced that they are deploying their own Content Delivery Network (CDN) for delivery of their video streams to Internet Exchange Points (IXPs) around the world. More importantly they are making the hardware and software design of their CDN servers freely available. That means any network can deploy Netflix CDN boxes deep into their network to significantly reduce traffic volumes and improve performance for users. more