Networks

Designing Secure Networks with Cisco Technology, Part 1

In this multipart series I will be presenting some of the leading industry-standard best practices for enterprise network security using Cisco technologies.... "Wisdom consists in being able to distinguish among dangers and make a choice of the least harmful." That quote is quite possibly the most accurate depiction possible of the never-ending struggle between network security and corporate budget. Providing a mechanism to defend the enterprise network from every conceivable threat is impossible in terms of both technology and funding. more

Beyond the Interweb

Today's Internet is a network of networks and seen through the lens of the web. We need to look beyond the engineering history to see the Internet in the context of the broader vision of JCR Licklider, an acoustic psychologist, and his vision of man/computer symbiosis... JCR Licklider would've been thrilled to see such a powerful man-machine symbiosis becoming so normal and having it work so well. Lick, as he was called, can be considered the grandfather of the Internet. more

Name Collision: Why ICANN Is Looking at It the Wrong Way (Part 1)

ICANN has, once again opened up a veritable can of worms, with their latest decision on the 'horrors' of Name Collision. While we are sure that ICANN and the Interisle Consulting Group have very good reason to make the decision that they have - delaying the delegation of several TLDs - we believe that the findings contained in Interisle's report do not give sufficient cause to delay the new gTLD program in the manner proposed by ICANN staff. more

US Smart Grid Networks Exploiting Infrastructure to Provide Wireless Broadband

The USDA Rural Development's Rural Utilities Service (RUS) has now spent the $250 million committed for smart grid technologies. To this has been added an additional $201 million in funding approved by the Agriculture Secretary to electricity utilities in eight states to install smart grid technologies and improve their generation and transmission facilities. The beneficiaries are spread among a large number of states. more

How Big Is That Network?

It's often observed that the Internet was a direct outcome of the progressive liberalization of national telecommunications markets in the late twentieth century. This allowed the entry of a wave of Internet entrepreneurs into various national telecommunications markets that were historically dominated by incumbent telephone monopolies. The resultant transformation of telecommunications over the past two decades is as much a testament to the transformational power of open markets as it is to the prodigious ability of the Internet's technology base to service the ever increasing demands being made of it. more

Filtering the Internet Is Still a Bad Idea: DCA, ABC, and Steroid Searches

A few days ago, ABC News ran an "investigative" piece called "Group Probes Ease and Danger of Buying Steroids Online." ABC describes the "group" at issue as "an online watchdog," the Digital Citizens Alliance. That group determined that some of the millions of available YouTube videos encourage steroid use and that YouTube (which is owned by Google) places ads next to steroid-related videos and search results. They argue that Google and YouTube should be held legally responsible for any illegal content linked or posted. more

The Appeal Against Broadband Reclassification

A British perspective on a very American process... As a new member of the the "Tech Elders", I was invited to join yesterday's hearing in Washington, DC on the reclassification of broadband Internet access services. The US Federal Communications Commission (FCC) has decreed that Internet access should switch from being lightly regulated as an 'information service' (Title I) to a more heavily regulated as 'telecommunications service' (Title II). I'd first like to say that the process and content was a credit to the rule of law in the United States. more

VoIP Security Predictions for 2009

Here are my VoIP and Voice security predictions for 2009, limited to just a few, key predictions... The poor economy will slow the adoption rate for VoIP and Unified Communications (UC). This will continue to limit the size of the enterprise VoIP deployments for potential hackers to exploit. VoIP/UC will continue to be mostly an internal/campus application where the threat level for attack is low, so deployments will be largely secured along the same lines as other data network applications. more

Unlimited Bandwidth is Disrupting Infrastructure Models

Over the last ten years we have heard a lot about edge-based services. These were needed to enable the operation of applications at the edge of the network, as the lack of available bandwidth capacity made it difficult to do so over the core network. However, with the prospect of limitless bandwidth the design of the network is changing again. more

Mend, Don’t End, the IETF

Is it time for the IETF to give up? Martin Geddes makes a case that it is, in fact, time for the IETF to "fade out." The case he lays out is compelling -- first, the IETF is not really an engineering organization. There is a lot of running after "success modes," but very little consideration of failure modes and how they can and should be guarded against. Second, the IETF "the IETF takes on problems for which it lacks an ontological and epistemological framework to resolve." In essence, in Martin's view, the IETF is not about engineering, and hasn't ever really been. more

Will LTE Steal the Broadband Revolution?

There is no doubt that LTE is going to take a prime position in broadband developments. With competitively priced services, innovative smartphones and an increasing range of very innovative apps this market is set to continue to boom. So how will all this impact the overall broadband market? ...this is not an 'us or them' issue between fixed and mobile broadband. As a matter of fact, the companies that are rolling out LTE are increasingly dependent on deep fibre rollouts as they need to handle massive amounts of data, to which the mobile infrastructure technology is not well-suited. more

Ossification and Fragmentation: The Once and Future ‘net

Mostafa Ammar, out of Georgia Tech recently posted an interesting paper titled The Service-Infrastructure Cycle, Ossification, and the Fragmentation of the Internet. I have argued elsewhere that we are seeing the fragmentation of the global Internet into multiple smaller pieces, primarily based on the centralization of content hosting combined with the rational economic decisions of the large-scale hosting services. The paper in hand takes a slightly different path to reach the same conclusion. more

DDoS Attack Size Breaks 100 Gbps for First Time, Up 1000% Since 2005

"2010 should be viewed as the year distributed denial of service (DDoS) attacks became mainstream as many high profile attacks were launched against popular Internet services and other well known targets," reports Arbor Networks in its just released Sixth Annual Worldwide Infrastructure Security Report. According to the report, the year also witnessed a sharp escalation in the scale and frequency of DDoS attack activity on the Internet. The 100 Gbps attack barrier was reached for the first time while application layer attacks hit an all-time high. Service providers experienced a marked impact on operational expense, revenue loss and customer churn as a result. more

Why We Need Gigabit Networks

There is currently a great deal of debate regarding the need for gigabit networks. There are still a lot of voices, often led by conservative political and media people, who argue that hardly anyone needs such networks. Unfortunately for them, however, their arguments are totally flawed. And who are they, anyway, to set the tone for such new infrastructure. Isn't necessity the mother of invention? more

The Cyber Security Ecosystem: Collaborate or Collaborate - It’s Your Choice

As cyber security as a field has grown in scope and influence, it has effectively become an 'ecosystem' of multiple players, all of whom either participate in or influence the way the field develops and/or operates. It's increasingly evident that, more than ever, it is crucial for those players to collaborate and work together to enhance the security posture of communities, nations and the globe. more