Your 50 Mbps WAN Bandwidth Options

By: John Shepler

The 50 Mbps bandwidth level has become very popular lately because of business requirements for cloud services, remote data center access, big data files, ecommerce, high resolution image transfer and video content distribution. You should know that there are several options to acquire 50 Mbps bandwidth connectivity. Let’s take a look at the advantages and limitations of each.


DS3 & T3
The classic telecom service at this level is DS3, also known as T3. It was developed by the telephone companies to transport large numbers of simultaneous calls between switching centers. DS3 actually runs at 45, not 50 Mbps, but this is close enough for many applications. DS3 is a time synchronous channel technology, not packet based. Therefore you need a DS3 interface module for your router. You may also acquire a managed router provided by your service provider to take care of this protocol conversion.

Copper / Fiber Hybrid
DS3 is actually a hybrid fiber & copper technology. It is delivered to the curb over fiber optic cable and then connected to your equipment using coaxial cables for transmit and receive. The same fiber optic cables that pass your location can also deliver true fiber bandwidth at the OC3 level. In fact DS3 likely rides as one signal on an OC3 carrier.

OC3 Fiber Optic
If you want the entire OC3 service, it runs at 155 Mbps, the equivalent of 3 DS3’s plus overhead. Some carriers will install OC3 but rate limit the bandwidth to 45 or 50 Mbps. If you don’t need more bandwidth than this, there are some cost savings involved. You may also have the option to upgrade to the full OC3 capability when you need it.

Carrier Ethernet
The new competitor to OC3 is Carrier Ethernet. This is an extension of the Ethernet that runs on your company network but scaled up for long distance transmission. The interface with your equipment is easy. You simply plug into an Ethernet connector installed by the service provider. Carrier Ethernet can be provided over twisted pair copper telco wiring or fiber optic cable. While it is possible to transmit 50 Mbps Ethernet over copper for limited distances, it is far more likely that you’ll have this service delivered over fiber.

DS3, OC3 & Ethernet Compared
Let’s compare DS3, OC3 and Ethernet over Fiber. All three will give you 45 to 50 Mbps in dedicated, symmetrical bandwidth. All three are highly reliable and come with service level agreements. DS3 and OC3 have been around longer and may be easier to find. Carrier Ethernet is newer, but where available it often has a significant cost advantage. It is also easier to scale Ethernet bandwidth up and down as you need to. Popular Ethernet bandwidths range from 10 Mbps on up to 10 Gbps, with 50 and 100 Mbps now commonly used in business.

The Cable Broadband Alternative
An alternative service called D3 or DOCSIS 3 is provided by cable companies. This is the same technology now used for residential cable broadband. The business version runs on the same cable but has options like static IP addresses and higher priority customer service. The advantage of D3 is that you get a lot of bandwidth for the money. For half what you’d pay for DS3 or Ethernet, you can get 50 Mbps business cable broadband. However this isn’t the same type of bandwidth. The total bandwidth on the cable is shared among many users, so your line speed will constantly vary. It is also asymmetrical, meaning that your download speed may be 50 Mbps, but your upload speed may be limited to 5 Mbps or so. This isn’t a problem for email or Web access, but may not work for other applications. Also, this service is provided on a “best effort” basis with no service level agreements. Availability of this service is limited to locations near the main cable run.

How to Choose?
Which type of bandwidth will work best for your business needs? Get advice and fast quotes on 50 Mbps WAN bandwidth or service from 10 Mbps on up to 10 Gbps and higher, please call toll free (888) 848-8749 or enter your inquiry.

Bandwidth Management Gets Easier With Ethernet

Bandwidth demand can be all over the map. It goes up, it comes down. It’s fine now but could go parabolic in 6 months to a year. Or not. How can an IT manager ensure that adequate resources are in place when needed without paying through the nose for idle resources?

Exacerbating this problem is the procurement and provisioning process that worked better in less volatile times. Typically a need is identified, a budget is created, approved and released, requests for quotes go out, vendors are narrowed down, a purchase order is cut, it winds its way through the carrier’s front office, eventually resulting in an installation, turn-up and the start of billing. If something happens and you need more, the whole process starts all over.

In a way, the whole system is tuned to match the technical characteristics of circuit switched line services. Take a T1 line, for instance. You order the line and you get 1.5 Mbps. No more, no less. If you only need 500 Kbps right now, the other 1000 Kbps goes to waste. You have to pay for the entire 1,500 Kbps because the day is coming soon when you’ll fill that pipe and you need to be ready.

The same is true for DS3, OC3, OC12, OC48 and other traditional telecom services. Moving from one of these to the other, up or down, is a major deal. DS3 is nothing like T1. If you need DS3, you’ll have a completely different demarcation connection from the carrier and you’ll need a completely different interface card for your edge router. It’s a major bandwidth jump, too. You’re moving from 1.5 Mbps up to 45 Mbps.

Not enough? The next jump is to OC3 SONET fiber at 155 Mbps. Once again, there is a long procurement and installation process with unique equipment for a particular service level. If you failed to order enough bandwidth, you’ll be dealing with network congestion for some time. If you way over-order, you’ll be paying a pretty price for a largely empty pipe.

Is there anything that can take some of the risk out of bandwidth management? You bet there is. It’s called Carrier Ethernet.

Carrier Ethernet services are fairly new compared to T-Carrier or SONET. They are available for metro, long haul and access networks. Carrier Ethernet is often touted as a technology that can link company LANs at two or more locations. It has an easy interface which is the same Ethernet connection used on your LAN, copper or fiber.

If that wasn’t enough, Carrier Ethernet costs are generally less than equivalent bandwidth levels for T-Carrier or SONET. It is not unusual to get twice the Mbps for the same money as you are currently paying for legacy telecom services. This cost savings is compelling, but may not even be THE important reason to embrace Ethernet in the MAN and WAN.

What Ethernet offers that other protocols don’t is easy scalability. Ethernet MAN and WAN networks are being designed for rapid remote management so that no truck rolls are needed when a customer wants more or less bandwidth. It’s all done at a computer screen so that you can pick up a phone can request a move from, say, 10 to 15 Mbps or 100 to 150 Mbps and you’ll have the extra resources available in as little as a few hours.

Carrier Ethernet is set up something like your LAN in that there are standard port speeds. You know that your switches, routers and PCs all have NICs (Network Interface Cards) with specs of 10 Mbps, 100 Mbps, 1000 Mbps or 10 Gbps. Usually, its some combination like 10/100/1000. The Ethernet port that you order installed will generally be 100 Mbps or 1000 Mbps, although it could be 10 Gbps if you really need that much. As long as you stay below the maximum capacity of the port, you can have just about any bandwidth level you want.

Very low bandwidths may have increments of 1 Mbps to 10 Mbps. Higher bandwidths might go up in jumps of 100 Mbps. Carrier Ethernet gives you a lot more choices so that you can more closely match the bandwidth you are paying for to the bandwidth you need. The ability to rapidly scale up that bandwidth means that you don’t have to order too much in anticipation of need. Get a port that will handle what you can reasonably expect to require but only order the bandwidth level you need to handle current business activity. If you suddenly enjoy a flood of customers or need to support a new video distribution, you can make that call and get the extra resources when you need them.

The result, clearly, is a major cost savings in not be over-provisioned for bandwidth plus less stress in worrying about what you have to do to be ready for tomorrow’s needs. Could your operation benefit from having this capability? If so, get prices, features and availability of Carrier Ethernet bandwidth services for your business locations.

HDBaseT Looks To Unseat HDMI

If you’ve used HDMI cables for digital video connections, you’ve probably noticed a couple of things. They are eye-popping expensive and limited in length. Anything more than a few feet long is hard to come by and really, really pricey. Standard networking, on the other hand, can span hundreds of feet and has become very affordable. Even pre-built Cat5e or Cat6 cables are quite reasonable. Wouldn’t it be nice if you could just use your computer networking cable to distribute video? Well, pretty soon you may well do just that.

The development that makes such an idea practical is called HDbaseT. It even sounds like a networking standard. The standardization work is being done by the HDBaseT Alliance, an industry group founded by LG Electronics, Samsung Electronics, Sony Pictures Entertainment and Valens Semiconductor.

The idea of replacing HDMI cables with their specialized connectors and construction with good old LAN cable is really quite appealing. But this is even better. HDBaseT is intended to provide what’s called 5Play convergence. One standard Cat5e/6 LAN cable with good old RJ-45 connectors on each end will deliver up to 5 separate services. These include uncompressed high definition video with audio, 100BaseT Ethernet, power for remote devices, plus control signals.

How much power? How does 100 Watts sound? That’s way more than we even expect from PoE or Power over Ethernet implementations that now exist. With 100W, you can power television receivers as well as remote security cameras.

What’s more, HDBaseT has room to scale. The base standard, HDBaseT 1.0 can carry uncompressed video/audio up to 10.2 Gbps, but is capable of scaling up to 20 Gbps. It can transport 100 Mbps Ethernet, but is capable of scaling up to Gigabit Ethernet speeds.

The HDBaseT Alliance announced finalization of the HDBaseT 1.0 specification on June 29. It’s expected that products with HDBaseT technology embedded will start appearing before the end of the year, with major adoption in 2011. The home video distribution market is all but crying for this type of solution. With the old analog TV, coaxial cable was cheap and easy to install and could easily cover the needs of a premises. HDTV and HD video need the same ease of distribution.

HDBaseT will also likely become important in B2B markets. Such applications as video conferencing, digital signage, security, and even video production can benefit from the flexibility and performance of this technology. Network convergence is getting more and more popular. HDBaseT looks like the right standard at the right time.

OC3 Bandwidth Costs Just A Fraction Of What It Did

If you are a use of high bandwidth fiber optic connections, you know that these line services don’t come cheap. Well, actually, they do come cheaper these days. But you have to know what to look for and where to look.

Take OC3 bandwidth, for instance. Optical Carrier level 3 is one of a family of fiber optic carrier services using the SONET (Synchronous Optic NETwork) protocol developed for the major telephone carriers and later offered to large business organizations. OC-3 is actually the lowest commonly available SONET service and runs a at a transmission speed of 155.52 Mbps. Of that, 148.608 Mbps is dedicated to payload, with 6.912 Mbps needed to support the overhead of transmission.

Time was, just a few years ago, that OC3 was considered an enormous amount of bandwidth. It was only ordered by major Internet service providers, colocation hosting facilities, television distribution companies and other large corporations. Medium size companies got by with DS3 at 45 Mbps, roughly 1/3 the capacity of OC3. Smaller companies had their needs met by T1 lines running 1.5 Mbps.

Today, OC3 bandwidth is no longer consider as the ultimate business telecom service. Leading edge companies have moved on to Gigabit bandwidth levels and even 10 Gbps is not out of the question. Two factors have been driving that change. One is expansion of the carrier market with many new competitive carriers running their own fiber optic networks. The other is the demand for higher bandwidths by such needs as cloud computing services, HDTV video, CAD/CAM design and manufacturing, scientific supercomputer simulations, and electronic medical records transmission.

While OC3 offers about 155 Mbps, the next level, OC12, offers 622 Mbps, OC48 steps that up to 2.5 Gbps and OC192 provides 10 Gbps performance. These are all SONET switched circuit TDM technologies. Their competitors are IP packet switched networks offering 100 Mbps Fast Ethernet, 1000 Mbps Gigabit Ethernet and 10,000 Mbps 10GigE.

With so much competition in the fiber optic arena, prices have come down dramatically over the last decade. In fact, if you haven’t checked competitive pricing in a few years, you may be shocked at how many options you have and at the low lease prices available. But... you may not find these low prices at all unless you check with a bandwidth broker who has access to dozens of competitive service providers. We work with Telarus, Inc., arguably the most innovative and fastest growing telecom services broker today. Their dedication to customer service and extensive automation tools make it easy for you to inquire as to services and pricing and get an answer quickly. Go ahead and simply state your business bandwidth needs now and see how glad you are that you invested the 30 seconds or so that it took to submit that online inquiry.