The ongoing effort to add a client subnet extension to DNS has recently gained attention due to its being a center-piece of The Global Internet Speedup initiative. The idea behind the extension is simple – to include in DNS request … Continue reading
Tablets have been generating a lot of news lately, and I think it’s interesting that almost all of it has focused on the tablet as a gadget and not the tablet as a conduit. It’s not about the tablet, as … Continue reading
I often use this forum to talk about the impact of increasing video traffic on operator networks, but it usually goes unstated that the impact is a combination of more video content being made available and more users with sufficiently … Continue reading
I just returned from the CDN World Forum with two take-aways… The first involves the relationship between CDNs and the Cloud, a topic that was front-and-center at the CDN World Forum for the simple reason that it was co-located with … Continue reading
While dealing with the explosion of video content is a common theme driving operator interest in CDNs, it remains the case that each operator is experiencing its own specific points-of-pain. For some, it’s the need to scale delivery of their … Continue reading
Content routing is one of the most important aspects of a CDN’s design, but also one of the most easily confused. I find that the following somewhat unorthodox perspective is helpful in teasing apart the design decisions. Starting from first … Continue reading
CDN Interconnection (CDNI) was a hot topic at Streaming Media’s Content Delivery Summit last week, spurred in part by a projection that it could double the size of the content delivery market, as well as an announcement that an interconnection … Continue reading
Every new application-delivery platform needs a killer app. Could CDNs be the killer app that pulls the Cloud out of the data center and into routing centers, central offices, and head-ends of Telcos and MSOs? Network operators are poised to … Continue reading
Whenever a story about service providers delivering video to their users makes it into the popular press, you can be pretty sure there’s a sub-plot involving CDNs. That’s been the case recently as several MSOs have started to deliver video … Continue reading
Welcome to the first installment of my blog: A Systems Approach. This forum serves two purposes. The first is that it gives me an opportunity to inform visitors about the issues in this rapidly changing technology area. The second is … Continue reading