8 result(s) displayed for SDN (1 - 8 of 8):
By: Paula Bernier, Executive Editor, TMC
Service providers are undergoing a sea change.
Their networks, which traditionally have been based on turnkey network elements running software on purpose-built hardware, are moving to a software-centric model. In this model the true value lies in the software, while the hardware is typically of the commercial-off-the-shelf variety.
Network Functions Virtualization (NFV) is the name of this new architecture, which not only embraces the model of instituting network functionality in software and running it on industry-servers, but also allows applications and services to leverage those resources whenever and wherever they are.
The dynamics of this global change are fairly well known, although how to address the challenges isn’t so obvious. For example, cities consume three quarters of energy and contribute 80 percent of CO2 emissions globally, according to a recent report in The Guardian. How can that energy be most effciently delivered, with minimal environmental impact?
Consensus is emerging that what’s needed are smarter, safer, greener cities. Governments and municipalities are under pressure to invest in sustainable infrastructure capable of efficiently delivering services to citizens and workers.
There’s a pretty compelling smart grid transformation opportunity for public-private partnerships embedded in this evolution. Together, telecom service providers and information and communication technology (ICT) providers can bring in their assets, expertise and experience to help power utilities meet goals for smart grid applications.
By: Roland Mestric, Director, Video Solutions Marketing
It feels like it was just a few months ago when you could read articles in the trade press lumping together SDN and NFV with NFV being a form of SDN or vice versa. Yes, both somehow are about virtualization and about converting hardware into software. Today – after numerous proofs-of-concept run by service provides around the globe – we know the role of SDN as virtually indispensable for NFV solutions that aspire to deliver the kind of agility and operational simplification we all expect from NFV. Only SDN can deliver quickly enough the (virtual) networks needed for newly deployed network functions. Alcatel-Lucent has recently demonstrated a complete virtual evolved packet core (vEPC) including a virtual IMS/VoLTE deployed in less than 30 minutes.
Large enterprises increasingly resemble public network service providers as they manage access, transport and network routing while controlling devices and sessions. Whether businesses build their own or buy their communications services through a public provider, the IP communications architectures are looking remarkably similar.
“I’ve noticed that both private service operators (CIOs of large enterprises) and public service providers are implementing very similar solutions around the globe,” wrote Oliver Krahn in a recent TechZine article, 6 Steps that Improve Communications Services.
By: Andreas Lemke, Alcatel-Lucent Sr. Marketing Manager – Cloud
“GM factories reduce production in aftermath of Japan earthquake 2011”, “Hard disk shortage due to Thailand flooding 2012“, “Drug shortages continue to vex doctors”, “China factory fire sends memory chip prices to three-year high (2013)”. Industrial supply chains are becoming increasingly tenuous as they are thinned out and stretched across the globe. Raw materials are available from fewer and fewer specialized suppliers and warehouses are eliminated for just-in-time production. Small, local incidents affect the supply of goods on a global scale.
In the IT industry we are seeing a similar trend. Enterprises are moving their applications and data to the cloud, but this cloud is often highly centralized and not as resilient, free flowing, or efficient as one might think. Amazon Web Services, the largest cloud provider in the world, is serving their global customers from no more than two handfuls of locations. Netflix and other companies have experienced major outages due to single failures in the cloud they used.
So what does this mean for NFV?
We live in exciting times – again. I had been wondering if there was still room for fundamental innovation, for technological disruption – the worn out word. We had the Internet bubble that burst 2001/2002. We had the advent of the smartphone in the recent years. Great innovation, but somehow they reached a plateau. Faster processors, larger screens? It doesn’t seem to make a real difference. Apple’s engine showed the first signs of sputtering.
And yet, there is something brewing behind the scenes that makes the engineer’s heart beat faster: NFV and SDN, a bold new vision about the future of networks (read these blog posts about understanding Network Functions Virtualization and Software Defined Networks). Network functions are to be reduced to pure software - doing away with all the special purpose chips, circuit boards, and cabinets into which we have poured our brains to deliver the ultimate in features, performance, and reliability.
By: Earl Kennedy, IP Transport Product Marketing, Alcatel-Lucent
Optical network operators have already made the move to 100G. But skyrocketing bandwidth demand means many are already pondering what’s next. With a 200G optical solution hitting the market, you probably have questions about when to move to 200G optical – and what you need to know when you make that move.
By: Sunil Khandekar, CEO, Nuage Networks
The future of datacenters is virtual, automatic, cloud-based, instantaneous, and boundary-less. These might not be the words associated with datacenters today -- you're more likely to hear slow, cumbersome, and related words in the same breath -- but software is driving this revolution in networking.
It has been undergoing a massive shift to the cloud for years now, driven by enterprise motivations to consolidate, as well as to use computer resources more optimally and efficiently. While computing virtualization has driven this transformation, the network has fallen woefully behind. Imagine having 20 virtual machines (VMs) in a server: Tomorrow that number grows to 100, to 200 the day after, and so on.
As you realize the implications of this growth in the datacenter, it becomes clear that the traditional networking approach of connecting those VMs is mindboggling because it doesn't deliver the true promise of the cloud -- instant access to apps anytime, anywhere and with no disruptions.