Content Delivery Networks Transformed

It’s no secret that bandwidth requirements are increasing across the board. Much of this has resulted from the move to IP video streaming and downloads. It’s also a function of more sophisticated websites than what were envisioned in the early days of HTML. Now graphics are huge and sites are interactive, with all sorts of browser and server based application code. The issue has been how to deal with network bandwidth requirements that are accelerating with no end in site. One answer is to transform the network and the sites that use it.

Why isn’t simply increasing WAN bandwidth sufficient? Indeed, WAN bandwidth is increasing by leaps and bounds. In fact, the flood of packets on the Internet has resulted in such traffic jams that CDNs or Content Delivery Networks have arisen to create fast bypass lanes around the Internet superhighway.

Bandwidth is expensive. Both copper and fiber based network bandwidth prices have plunged in recent years. Even so, the demand to transport more and more data per user is causing many companies to increase their telecom services budgets to keep up. The end user has also increased their DSL, Cable and wireless broadband service speeds, but there is a limit to what they will pay and what is even available in many areas.

Two companies have teamed up to deal with this dilemma head-on. Level 3 is a global connectivity and content delivery network services provider. Strangeloop is a company that specializes in network and website acceleration. Combine a CDN with advanced acceleration techniques and you create a much faster network. How much faster? Up to a 30% performance improvement compared with what’s been available previously.

Note that this 30% performance boost is not a simple cranking up of network bandwidth. What these techniques do is actively manage three aspects of the process: network, delivery and code. Both Level 3 and Strangeloop actively manage how Web content is delivered to an end user without that user being aware that anything other than a simple file transfer is going on.

For instance, multiple copies of website files are hosted on Level 3’s Content Delivery Network and sent to the user from the most optimal cache server for that user location. Level 3 has 35 strategically placed caching locations. They also offer a streaming service for real-time content such as video.

Strangeloop goes further by actively managing how each page is rendered. They do things like compressing images for mobile viewers, increasing parallel data download from server to browser, reducing roundtrips by consolidating similar resources into single files, and delaying execution of non-critical scripts until the rest of the page has loaded and been rendered on the browser. Their process also lets the browser start downloading page resources while the server is busy generating the HTML page. Normally this is a serial process that takes longer than necessary.

Human nature dictates that the longer it takes for a page to load, the more people bail out due to impatience or mistakenly thinking that the site is broken and will never load. By speeding up the site rendering process so that users see the result in a second or two can dramatically improve the stickiness of the site and desired actions they take while visiting.

Are you frustrated with the sluggish performance of your site or streaming content because of too much information taking too long to reach your users? Perhaps you can benefit from the Level 3 CDN Site Transformer for enterprise users or other network improvements. Explain your need and get pricing and availability on high performance bandwidth services now.

Why Content Delivery Networks Need More Capacity

We’re in the midst of an enormous media shift. For those of us who grew up in the era of broadcast domination, this amounts to a revolution in technology. Nobody worries too much anymore about how to adjust the rabbit ears for best reception. Instead, they worry about 3G and 4G coverage so they can get their videos on the go. Cable and satellite TV, the successors to over the air delivery, now have to worry about the Internet as the connection of choice for both audio and video. If over-the-air delivery is waning, then what is taking its place? It’s the CDN or Content Delivery Network.

What’s a CDN and how does it relate to the Internet? A content delivery network works with the Internet, not as a replacement. The public does not connect directly to a CDN. These are privately run networks designed to provide high bandwidth combined with low latency, jitter and packet loss. They are designed for capacity and quality to support content producers and distributors. Thus, the name Content Delivery Network. They are designed to deliver content, most often in IP video format, from point to point or point to multipoint.

What CDNs do in take a load off the Internet and ensure quality of transmission for most of the distance traversed. Say a customer wants access to an HD video download or stream. You can try to jam that through the Internet and take your chances with traffic congestion and other quality degradations. Or, the provider can send the program over a CDN directly to the Internet Service Provider. The ISP, say a cable company, then gives access to the CDN delivered content to their customer. In this case, it could be through the Cable broadband service or the content could be used to feed a separate cable channel.

Sure, content can still be degraded between the ISP head end and the customer, but at least the service providers have control of that portion of the network. They can choose how to manage the bandwidth shared by their customers to ensure satisfactory video quality.

The media shift now in progress is gravitating toward most consumers getting their video services via cable or satellite rather than through over the air broadcast channels. That’s why you haven’t heard much screaming over the replacement of analog transmission by digital. It's not that those converter boxes are so wonderful. It's that the satellite and cable set top boxes that feed TV sets are capable of providing a variety of compatible analog, digital, SD and HD television signals. Old TVs as well as new are supported.

Digital HDTV was just one phase of the transformation. What’s happening now is that more and more set top boxes and television receivers themselves come with Ethernet ports for IP content. Plug these ports into an Internet router and the TV set becomes capable of displaying video content that never leaves the Net. Netflix is an example of a content provider that uses the Internet. So is YouTube. Even the broadcast networks are providing archives of already aired shows on their Internet sites.

This move from airwaves to broadband will likely result in more and more spectrum repurposed to wireless Internet service. At the same time, IP video content will increase and require a robust delivery mechanism. This is why CDNs are growing and will continue to for the foreseeable future. Level 3, one of the world’s largest IP backbones for content delivery, recently added 1.65 Tbps of global capacity and added Toronto, Montreal, Brussels, Munich and Hamburg to its CDN. Video content delivery is now worldwide.

Is your organization in the business of producing, distributing or delivering content to service providers or end users? If so, you have an opportunity to compare IP video transport services for regional, national or international connections. There is no charge for this complementary pricing and consulting service for serious business and organizational applications.

Telx Minimizes Latency WIth Colocation Near Carriers

If latency is important to your applications, you want to be as close as possible to your service providers. Why? Because no matter how fast your equipment runs, the lower limit to latency is the propagation of the the signal itself. In a vacuum, that’s a millisecond per 186 miles. Through copper or fiber, it just gets longer. Add-in a collection of routers and switchers and it gets a lot, lot longer. Think about being right next to your service provider with nothing but a short link in-between. How can you do that? Think Telx.

Telx is a colocation and interconnection company. They specialize in putting customers and service providers in close proximity. It starts with having colocation centers in 9 states with 15 sites. These are strategically located in key locations near media hubs, cable landings, fiber paths and exchanges. There are 4 locations in the New York Metro Area, two in Chicago, two in Dallas, three in California, including Los Angeles, San Francisco and Santa Clara, and others in Atlanta, Miami, Phoenix and Charlotte.

Telx prides itself on having a network-neutral environment that supports over 750 telecommunications carriers, ISPs, content, cloud and SaaS (Software as a Service) providers. They already have over 28,000 direct connections. What this does is put your business in close proximity to the services you seek. Latency is certainly minimized by all being in the same facility or at least on the same backbone network, but cost is also minimized. With so many services just a patch cord away, you can get excellent prices on bandwidth and other IT services.

If your needs are critical and your demands high, you may well benefit from getting colo rack space in a Telx facility. They are all set up to support your rack, cabinet or cage with highly reliable power and cooling. Most facilities can provide you with 120v 2089v, 480v AC and -48v DC power.

In addition to space, power, HVAC and security, Telx has technicians available to support installations, turn up and provisioning of network equipment and circuits, right down to server reboots. They also have something called a “Virtual Xchange” that offers circuit multiplexing and demultiplexing, protocol conversions, law conversions and other grooming solutions. Their carrier hotel Meet Me Room encompasses the entire colocation center, with a passive and secure area called a Meet Me Area for customer interconnections via cross connects.

Network services are available that go way beyond mere bandwidth connections. There is video exchange, Internet exchange, managed security services and cloud computing as network enabled services.

Are your network and computing needs critical enough that minimizing latency offers a significant performance advantage, or are you just looking at colocation services as an opportunity to get better deals on bandwidth and minimize support operations at your own facility? If so, you could benefit by getting competitive quotes for server colocation services.

Dark Fiber Network Expansion Underway

If there is any doubt that we are a bandwidth addicted society, it should be removed with the announcement that a major dark fiber network project has been launched by Allied Fiber. When finished, it will circle the US perimeter with 548 dark fibers and 300 tower sites.

Fiber optic communications is coming into its own, and this time it’s likely here to stay. Back in the 1990’s, thousands of miles of fiber optic cable were buried in anticipation of a telecommunications revolution that fizzled along with the technology sector in general. There is still lots of unlit fiber laying quietly in the ground, but it’s probably going to get lit sooner rather than later. That telecom revolution looks to be on again.

The original fiber optic cables were installed to support telephone calls. Voice services are the least of the demand for bandwidth anymore. Data is on the rise and rising, but video is the killer app. By that, I mean the app that will kill your network bandwidth faster than anything. Video has morphed from NTSC analog television to HDTV, with 3D starting to gain a foothold. It’s not just television, either. Video means YouTube, Netflix, Telepresence, and mobile. The proliferation of all types of video services have necessitated special content delivery networks that offload the Internet up until the last mile service provider.

The traditional T1 lines that backhaul cellular towers are just about out of capability, now that every smartphone has a data service and everyone wants to download apps on the fly and watch video content while on the go. The next generation of phones will have 2 cameras, one facing out for taking pictures and recording video clips and the other facing the user for 2-way video conferencing. There’s a new bandwidth demand that far exceeds the traditional voice conversation. It’s just as expensive to bury new copper to meet the demand as it is to bury fiber optic cables, so new backhaul will be over fiber.

Independent service providers, content delivery networks, major corporations, medical center networks and scientific research labs are among those users who find that leasing or owning dark fiber assets give them the bandwidth they need, when they need it. Dark fiber is just what it sounds like. It’s glass fiber strands within a cable bundle that haven’t been “lit” or connected to terminal equipment yet. Without a laser light shining through their core, they are truly “dark.” But those who have access to dark fiber, can choose what equipment to connect for the bandwidth and protocols they want to support. If you need more bandwidth down the road, you can use the same fiber by simply upgrading modules in your terminal equipment.

Do you need the flexibility of being able to completely manage your wide area network down to the very terminal equipment at each end? If so, you may want to take a closer look at dark fiber as the most flexible way to connect between locations. Prices are lower than they’ve ever been. You might be surprised by how affordable dark fiber is in special circumstances. Let our Telarus bandwidth consultants consider your applications and offer you an array of solutions that include dark fiber network services.

40 Gbps Bandwidth Available For Business

XO Communications has upped the ante on business bandwidth options by making two 40 Gbps network services available in all major metropolitan markets of its nationwide fiber optic footprint. Listen to Randy Nicklas, Chief Technology Officer of XO Communications, explain the advantages of the new 40 Gbps wavelength and IP transit services:



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Clearly, we’re entering a new and exciting era of very high bandwidth applications for businesses as well as service providers, such as Cable companies. High speed financial trading demands the lowest latencies possible. You snooze for a millisecond, you lose. This pushes the requirements for both transport speed between cities and also minimal time delays going through the routing and switching equipment.

Content delivery networks may be less latency sensitive than the financial trading networks, but they have an insatiable need for bandwidth. There is no upper limit in sight as of this writing. Surely 40 Gbps is just a incremental level on the way to 100 Gbps and beyond. Why? Because everybody wants the video they want to see when they want to see it, and high definition video has massive bandwidth demands. Every Internet user on Earth couldn’t possibly send enough email, visit enough web sites, or update their software often enough to match even the current demand for video transport. This is why Cable TV companies and other video distributors are moving away from the public Internet to privately run content delivery networks to meet their demands for bandwidth and stability.

Is your company involved in video production or distribution, or perhaps financial services? If so, you certainly have demands for high levels of wide area networking bandwidth at reasonable prices. Other business users may not be pushing the technology limits just yet, although getting the best prices on fiber optic bandwidth is equally important. For all of these situations, you can find highly competitive fiber optic bandwidth pricing from XO Communications and other top tier providers through our GigaPackets bandwidth service and Telarus expert consultants.