For the last 3 weeks, my colleagues have written on the topic of IWAN and its various components. Ido wrote about the basics (and more) about IWAN, Kiran on how to get twice the bandwidth with PfR, and Hector on how Glue Networks improves the IWAN experience for IT. As the name suggests, the ‘WAN’ in Intelligent WAN is a very important element but we can’t forget why we need an intelligent WAN – the branch or store that sits on the other side. It’s the place where 80% of employees of enterprises reside and where content explosion is happening with cloud applications, video training, and other business applications need to be delivered to. So it would be an understatement to say the branch architecture and how applications are delivered and hosted is important.
The advent of the many clouds has now become a reality. Enterprises of all sizes and segments are embracing cloud solutions, whether private internal cloud, Virtual Private Cloud, Public Cloud, or some Hybrid. The number of workloads as well as cloud traffic are expected to grow exponentially in the next 5 years.
The shift to the many clouds has significant impact on the role of IT. IT has to reinvent itself to be able to keep control as applications are increasingly moving to cloud infrastructures.
In particular, there are two very strong trends that will require IT to increasingly position itself as a Broker of Services, and evolve from a more traditional role of being an infrastructure provider.
First, line of businesses intend to address some of their IT needs directly by purchasing cloud-based IT services. Read More »
Imagine that you have several branch offices that are using WAN demanding applications like Salesforce.com, Office 365, Virtual Desktops, Video Teleconferencing and more. You are using those expensive MPLS/VPN WAN connections as you don’t want to risk it and probably because when you started to work there it was already there and … why mess around with something that is working, right? Normally I would agree with that but when IT budgets are shrinking and the network needs to step up and support those business critical apps, there is no other way but to innovate.
At any given time your network carries information from LAN to WAN and vice versa, some is important and some is less important. In many cases as a network admin you don’t have the visibility to distinguish between them, so what do you do when those critical apps are starting to act up? Usually the answer will be to buy more WAN bandwidth and that will give the apps and the user experience behind them some breathing space. But all you’re doing is buying time. Buying time never solves the problem because you will need to treat the symptoms again in a few weeks or months.
Studies show the importance of quality education when it comes to the development of a country. The education system of the 21st century is very different from a few years prior due to the technological advances. There is a massive change in the way information is accessed today.
We can no longer limit students to books for knowledge because of the plethora of information that students can access on the internet through the various devices. The Common Core Standards introduced in the United States aim to prepare students for the future in the 21st century. Read More »
We in IT are faced with many challenges from our end users. From IT costs to application performance, while always keeping an eye on our network security posture. This reminds me of a sign on the wall of my auto mechanic’s shop: Good, Fast, Low-cost. I was always told I am allowed to pick only two. I would of course question him, “why cant I have something with high quality, on time, and within budget?” This always made him smile, but he still told me I could only pick two.
So back to our IT challenges: Cost, Performance, and Security. Application performance is something we can all see, feel and touch. When thinking about performance, we need to also consider where these applications are coming from. Looking at applications like Microsoft’s Office 365, we are seeing mission critical applications from outside our data centers being delivered as Software as a Service (SaaS) solution. Does this matter to our end users? They sit at their PC’s, Tablets, Mac’s, etc. and know when something is not going fast enough. Their expectations are growing; they always expect the best performance. If they don’t feel their Outlook e-mail is opening fast enough or that the saving of their PowerPoint file is taking too long, they do not hesitate to let us know. And oddly enough, everyone just assumes it is the network. So not only do we need to think about our networks, but the Internet performance as well.