All Aboard the Dark Fiber Train

When asked to describe a private fiber wide area network (WAN) and particularly dark fiber WANs, I like to use the analogy of a train system. In this analogy, you have:

  • Data or content being transmitted:  People or freight
  • A variety of speeds and protocols available:  Engine and car type such as freight, standard or bullet trains
  • Various nodes or destinations:  Stations
  • Distribution hubs:  ex:  Penn Station, NYC and,
  • A system of pathways and switches that the data traverses:  Railway tracks and switches

In a standard managed network, you have little control over anything but the content you are transmitting; and for various content types such as voice, data, etc. you need separate services. In our analogy, you must then purchase separate tickets for your voice passengers and your data cargo which will be loaded onto a local train, with everyone else’s passengers, to stop at each station on the route. This of course introduces opportunities for lost passengers, overcrowding, and nefarious characters looking at your laptop screen along the way. None of this is necessarily a bad thing; most systems do a fair job of weeding out nefarious characters and provisioning enough trains to handle the traffic at a reasonable price for the level of service.

However, at some point, your passengers and cargo may be too precious to trust to this system - enter a private fiber optic network. A private network is exactly what it sounds like; new railways are built connecting only the stations you need. In a managed private network, the train is still provided but you are free to consolidate your services by combining passenger and cargo traffic. And since it is only your passengers on-board, there are no nefarious characters lurking over your shoulder. To go a step further, a dark fiber network supplies only the railway tracks thus providing you with unlimited access. You can put a 1 or 10 gig train on the track immediately but you are also free to upgrade at any point. Now you control not only the passengers, but the rail cars, engine and stations. Plus, you don’t share the tracks with anyone else meaning there are no switches or distribution hubs to pass through. This level of flexibility, security and reliability cannot be matched by a traditional system.

Private networks are not for everyone. For various reasons, a managed service may often be a better fit for your model…

Follow up in two weeks for a review of dark fiber vs. managed services

IAAS: How we use our own network

While we often promote the ways our customers benefit from using our product, this space provides the ability to share how we, Sunesys, benefit from using our own product. This example comes from the recent move of our virtual servers into the cloud by running them on an Infrastructure-as-a-Service (IAAS) across our own network.

IAAS is a cloud service that leverages the multi-tenant scalability of virtualization products like VMWare and Citrix. It offers virtual co-location, hardware-on-demand, image level disaster recovery, metered usage, and many features that IT departments simply can’t do on their own. With the IAAS model, your internal IT staff is freed of hardware and facility support, allowing them to focus on business-line applications and the end user experience. Although there are some well known IAAS providers where you can build a virtual server and connect to it over the Internet within minutes, we chose a different route.

We evaluated these providers and were impressed with the scale and simplicity of their service. But they were lacking one important element – the feeling of being “on-network”. We needed seamless integration with our network so that we could maintain performance, reliability, and security. There are no assurances of this when traversing the Internet. What if we could connect to IAAS over a private circuit? Well, in fact we could. Many IAAS providers will work with you to connect a private circuit into their virtual cloud. These providers are setting up shop in regional data centers, POPs, and COs to get closer to their customers. One of these providers, Xtium in Valley Forge, was already on our fiber network.

Sunesys and Xtium designed a 1GB fiber circuit that extended the Sunesys LAN onto a dedicated VLAN and VRF at Xtium. Then, late on a Friday night we slid our VMs over to Xtium. We didn’t even need to change IP addresses. The VMs came right up, still essentially “on-network”, yet fully leveraging the cloud. Best of all, our users didn’t even realize it happened.

Sunlight, the Sunesys Blog

Welcome to the first edition of Sunlight - a blog on what we at Sunesys feel is going on in the metro telecom industry. Over the next months and throughout the year, Sunlight will try to shed light on the trends in telecommunications in the metro marketplace, whether it be dark fiber, bandwidth services, cloud computing, wireless, wireline, etc.

When we first decided to create a blog, I wasn’t sure what we would write about, and I’m still not sure of all the things we will discuss.  Having spent more years than I care to remember (not due to the business but rather a reflection on my age) in the telecom industry, from the first days in cable TV to the present “cloud”, the one defining thing I can say about our trade is CHANGE!  Every day the communications industry changes and morphs to what is required to meet the demands of a global market.  From applications such as Facebook to cloud computing for commerce, our insatiable demand for bandwidth continues to grow at an astonishing pace.

Our need for connectivity in the world of work and pleasure has become so important to us as human beings that we even struggle to put email and Facebook aside when on vacation.  As I write this, I am somewhere in the Caribbean west of Dominica on my way to Barbados.  I only tell you this because we now take for granted that wherever we are, we can communicate with anyone in the world and are highly frustrated when we can’t.

Every day new applications strain our wireline and wireless industry in our never ending thirst for high speed communications for both personal and business use.

I hope that our readers are entertained by Sunlight’s blog, but more importantly learn something interesting or new from our posts. Of course comments and questions are more than welcome.

Until next time,

Alan

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