Gigabit Metro Fiber Ethernet Means Business

By: John Shepler

More and more companies are running out of bandwidth as demanding applications eat up every Mbps of LAN, MAN and WAN bandwidth they can access. Are you doomed to fight a losing battle or is there a good technical solution available?

More Bandwidth to the Rescue
Don’t expect to roll back the clock and be able to do business today and tomorrow with the connections you ordered yesterday. X.25 is long gone. T1 lines have about had their last hurrah. Ethernet over Copper is a temporary solution, at best, to buy you time for what you really need to do. That is, connect to the world via fiber optic bandwidth

But What About Cable?
Cable broadband, also called D3 or DOCSIS 3 for the technical standard, is actually a good solution for some applications. Just don’t kid yourself. That cable connection doesn’t really go very far until it hooks up with the cable company’s metro fiber plant. The junction box may be a few blocks away or it might be handing on the utility pole you can see from your office.

The same is true for T3 or DS3 bandwidth, the longstanding upgrade path from T1 lines. The connection to your equipment may be a pair of coaxial cables, but they only go out to the street. At they point they join up with a SONET fiber optic system owned and maintained by the local telephone company.

What’s Special About MetroE Fiber?
Ethernet is the newer and future-proof technology for carrying digital traffic on fiber optic systems. It is based on the same Ethernet standards used for your local area networks. Certain standards have been added to fit with carrier operations, but otherwise it is switched Ethernet.

That means the interface between your LAN and the carrier’s MAN or WAN is trivially simple. Just plug in and go, like you would with any router or switch. No special interface cards are needed. Chances are that the carrier who is providing your service will install a managed router at your business to define the network edge.

Metro vs Internet
Metro Ethernet, strictly speaking, is a network that serves a particular city or city plus suburbs. The most common use has been to interconnect business locations that are geographically close. These may include headquarters, data centers, warehouses and branch offices. Some companies choose to include suppliers and important customers on their MetroE network for high connection speed and security.

Metro Ethernet is a point to point or multipoint service that directly connects particular locations. You can elect to order ELAN service that actually extends your local network to the other locations. It’s just like you ran your own cables across town, but without the prohibitive expense of doing so.

The Internet is another animal. It’s actually a massive worldwide network made up of national, regional and city-wide networks that all agree to a common standard. Metro Ethernet is not the Internet, but it can connect to it. MetroE networks can also connect to each other over longer distances, especially when ordered through the same carrier.

Why Order Metro Ethernet?
You can think of Carrier Ethernet or Metro Ethernet as the new gold standard in telecommunications. It gives you high bandwidth connections that are easily scalable and low in latency, jitter and packet loss. You have exclusive use of the bandwidth you’ve ordered. It’s also generally covered by a service level agreement to ensure that you get the highest level of availability.

That’s important because the tradeoff between Metro Ethernet and Cable Broadband is not so much in the connection method. Cable provides you with a shared bandwidth service that varies in speed depending on how heavy the usage is. Service is generally on a “best effort” basis rather than any particular guarantees of performance or availability. Thus, the lower price for a given bandwidth level. Some businesses, especially smaller ones, find this tradeoff well worth making. Others with large user bases and critical applications may find that only dedicated service is acceptable.

By the way, many Cable companies also offer Metro Ethernet service on their fiber backbones. It’s a different class of service with a different pricing structure than the coax connected business broadband offering.

Is Metro Ethernet For You?
If you are running out of bandwidth or already at the limit, or simply want a service that can easily be upgraded in the future, you should take a serious look at Metro Ethernet for your business. You may be able to get a break on construction costs or even have them waived if you sign a long term contract, have high enough bandwidth requirements or can join forces with other business customers in your building. There are likely multiple carriers serving your area. Find out what each can offer with a set of competitive quotes for Metro Ethernet service now.

Connecting Offices Between the US and Mexico

By: John Shepler

Many companies do business in both the United States and Mexico. There are numerous carriers that serve the US market and others that serve the Mexican market. But what do you do when you need the same service level in both countries?

International Connections
Companies that do business internationally need telecom services that cross national borders. Fortunately, there are a number of carriers that offer international line services. These include connections between US cities and those in Mexico.

What type of connections? Today you have options for voice, data and video services. You can connect just two locations or create a large virtual LAN that includes all of your business locations in North America and beyond.

International Private Lines
The Bell Labs developed T-Carrier system is a standard used throughout North America. That includes the US, Canada and Mexico.

T-Carrier includes T1 (DS1) that runs at 1.5 Mbps and T3 (DS3) at 45 Mbps. In-between those standard levels additional bandwidths can be created by bonding T1 lines together. Two T1 lines give you 3 Mbps, three lines offers 4.5 Mbps and so on. The maximum bandwidth available by T1 line bonding is 10 to 12 Mbps. Above that, you generally run out of copper pairs available to be pressed into service or the bonded service become cost prohibitive.

T3 lines can be rate limited to bridge that gap between 10 Mbps and 45 Mbps. The line itself runs at full speed, but you only pay for the bandwidth that is actually enabled. The cost savings may or may not be attractive for fractional T3 service, depending on your needs.

It’s important to note that T1 and T3 lines are dedicated private circuits that are always available or “nailed up.” You don’t need to dial into them and they are reserved for your exclusive use. Since you are the only customer on the line, the only network congestion possible is due to your own demands on the circuit.

Fiber Optic International Lines
Fiber optic lines were originally developed using SONET (Synchronous Optical NETwork) standards deliberately chosen to be compatible with the T-Carrier system. The entry level service is OC3 which runs at 155 Mbps. It is designed to easily transport 3 T3 line services. In fact, T3 is most often carried for most of the transmission distance by OC-3 fiber service and then provisioned by coaxial copper cable at the customer demarcation point.

SONET is still the core transmission technology of most wide area networks. OC-3 is just the starting point. Other commonly available services include OC-12 at 622 Mbps, OC-48 at 2.5 Gbps, OC-192 at 10 Gbps and OC-768 at 40 Gbps.

Like T-Carrier, SONET services are dedicated private lines. You don’t shared the bandwidth with anyone. It is completely reserved for your use and sits idle when there is no traffic.

Ethernet International Services
Telephone traffic was dominant on international telecom circuits for a century. That has changed dramatically to where voice is now the minor traffic and data is dominant. On some networks, video is not the big bandwidth user, followed by large data transfers and then voice traffic.

This change in the nature of telecommunications traffic has spurred a change in the transmission technology. Nearly all local area networks have adopted the Ethernet standard. It’s logical that metro and wide area networks do the same.

The equivalent to T-Carrier or SONET is EPL or Ethernet Private Line. The beauty of Ethernet is that you plug the network line into your headquarters LAN at one end and your branch office LAN at the other. It’s Ethernet all the way. Because of this, you can bridge two LANs so that they perform as one large local network.

Carrier Ethernet, as it is called, offers another service called Ethernet LAN service. This is a meshed network that can connect 3 or more locations as one LAN. It’s perfect for companies with operations in multiple locations.

MPLS Networks
For international connections, like US and Mexico, MPLS networks often offer the best value. MPLS is a private “cloud” network with nationwide and international nodes. You can get the same point to point connections offered by dedicated private lines, only on MPLS they are called virtual private lines and virtual private LAN. The virtual designation comes from the cloud structure of the network. You are sharing the network with other traffic rather than having a circuit all to yourself. The MPLS network operator sets up your virtual paths and guarantees bandwidth, latency, jitter and packet loss.

In the end, you have the sense of private line performance, but a much more affordable rate with the shared network infrastructure.

MPLS networks can carry voice and data traffic simultaneously with class of service provisions to prevent data from overwhelming voice. VoMPLS or Voice over MPLS is VoIP carried on MPLS networks. It provides your telephone service among multiple business locations.

Do you have a need to interconnect offices between the US and Mexico? If so, check out the options available with International private lines and MPLS networks.

High Speed Business Internet

By: John Shepler

Broadband for business has many more options available than residential broadband. Conventional wisdom is that businesses pay dearly for their high speed Internet. It’s true that some telecom options are more costly, even much more costly than consumer services… for good reasons. But other options are priced in the same ballpark as residential broadband and perfect for certain applications. Let’s take a look at the range of high speed business Internet services available for your location and how to choose.

Business Cable Broadband
At the low end of the price spectrum is cable based broadband Internet. Technically, this is known as DOCSIS 3.0 or D3. Yes, it is delivered on the same coaxial cable that brings in Cable TV. That’s an advantage for certain businesses, like bars and doctor’s waiting rooms. You can get a bundle of broadband and TV, or a “triple play” of broadband, TV and telephone on one line.

Pricing is very attractive because of the huge number of subscribers on the cable. That is also a limitation. You and dozens or hundreds of other users are sharing a pool of bandwidth. When the provider says you get “up to” a certain bandwidth, that is the maximum you’ll see. When lots of other subscribers are online and downloading video or other large files, the line speed for everyone slows down accordingly.

Another reason prices are so low is that cable broadband is not regulated the same way as legacy telecom services. It is considered an “information service” with delivery on a “best effort” basis. Telecom services have SLAs (Service Level Agreements) that spell out performance characteristics and time to response and repair outages.

How do you know if business cable broadband is right for you? For small businesses, especially those who can take advantage of the bundled options, cable is budget friendly. If you have experience with cable broadband at home and are satisfied with the performance and reliability, you’ll likely be happy with the business version as well.

Wireless Broadband
Sometimes you don’t want or need wires at all. 3G and even 4G cellular broadband is available for most business locations. Without the wires, you can be mobile with your smartphone, tablet or laptop computer. A high performance fixed transceiver works great for “pop up” stores or construction sites that only need temporary service.

The limitations of wireless broadband tends to be the limited bandwidth available. Even if you have all the speed you need for your applications, you have a monthly download quota of 5 GB, 10 GB or some number. For things like credit card verification, email and occasional Web access, this may not be a problem. It isn’t a good match for many employees, considerable video downloads or software updates.

Satellite is a fixed wireless service separate from cell towers. It works anywhere you can mount a small dish and have a clear view of the southern sky. Like cellular broadband, satellite is bandwidth limited and not suitable for heavy use. It also suffers from high latency, or time delay, that make it difficult to use for real time applications like VoIP and video conferencing.

T1 lines
T1 is the classic broadband line for businesses. It offers rock solid bandwidth that is equal in both the upload and download directions. Shared bandwidth services, like cable and wireless, offer much higher download that upload speeds. T1 is dedicated to your use and not shared with other companies. It offers low latency and high reliability.

The main limitation of T1 is the bandwidth. It’s 1.5 Mbps. That used to be plenty and still is for smaller applications. You can increase this from 3 to 12 Mbps by adding more T1 lines. This is called “bonded T1.” Each line has a certain cost, so it can get pricey fast.

T1 and bonded T1 offer the professional grade performance you need for nearly everything you want to do, including cloud services and secure point to point connections. It’s also available just about anywhere you can get a conventional telephone line.

DS3 or T3
The legacy upgrade path from T1 is called T3, also known as DS3 (not to be confused with cable D3). Bandwidth increases from 1.5 Mbps to 45 Mbps. That is generally enough for most small to medium size businesses. Like T1, DS3 is highly reliable with low latency, jitter and packet loss. It can be set up as a direct point to point line service as well as Internet access.

The two limitations of DS3 are the relatively high cost compared with other options and availability. The DS3 connection is a pair of coaxial copper cables, but fiber optic lines carry the signal most of the way. That means that fiber needs to be nearby for DS3 to be an option.

Ethernet over Copper
Ethernet over Copper or EoC is a direct competitor to T1. EoC uses the same twisted pair copper wires employed by T1. Multiple pairs are bonded to increase bandwidth. What EoC offers is a direct Ethernet connection to your network plus bandwidth options from 3 to 20 Mbps, even up to 50 or 100 Mbps in some locations.

Ethernet over Copper is widely available and the cost per Mbps tends to be much lower than T1 or DS3. The limitation is that you need to be located near the telco office to get the higher bandwidths. Unlike T1, EoC bandwidth rapidly decreases with distance. However, when available, Ethernet over Copper is an excellent choice for business broadband.

Ethernet over Fiber
Like EoC, EoF or Ethernet over Fiber gives you a high performance broadband service at an excellent price. As you might guess, moving from copper to fiber makes higher bandwidths available. Ethernet over Fiber bandwidth options start at 10 Mbps and go up to 100 Mbps, 1000 Mbps and 10 Gbps. In some locations you can now get 100 Gbps bandwidth if you need this service level.

Fiber has the advantage of being “future proof.” Once installed, chances are that you’ll never need further line construction. Ethernet (as opposed to legacy SONET fiber) is highly scalable. That means you can start off paying for the bandwidth you need today and then upgrade to higher levels with a simple phone call to your provider. Usually no equipment changes will be needed and you can get the increase immediately or within a short time frame compared to upgrading other services.

What broadband option is best for your business? It comes down to cost vs performance along with availability. Get the complete picture on the options for your location with competitive quotes for high speed business Internet services.

Benefits of Migrating From T1 to Fiber

By: John Shepler

If you’ve been using T1 lines for years, maybe decades, you know how solid and reliable they are. Your natural inclination is to stick with what’s working. After all, why mess with success? You should know that there are really good reasons to do just that.

What’s So Great About T1 Lines?
The appeal of T1 lies in its design and technical maturity. T-Carrier technology, which includes T1, E1 and T3 (DS3) line services, was developed in the mid-twentieth century for long distance telephone trunking to replace noisy analog carriers. Being digital, it was easy to expand the role of T1 lines to carrying packets as well as PCM audio telephone calls.

T1 Service Characteristics
T1 lines come into your building on one or two twisted copper pair using the same wires that carry multi-line telephone. This means that you can get T1 just about anywhere you can get regular POTS phone service. The service is symmetrical, meaning that upload and download speed are the same. There are no usage limits. Whatever you can load on the line during the month, you can transport. This is a dedicated private line, meaning you are the only user and security is high. So, with all that going for T1, why would you want to make a change?

Time Marches On
The 1.5 Mbps bandwidth of T1 was more than enough for business users… once upon a time. Today, 1.5 Mbps is still enough for credit card verification, email, casual Web browsing, and backup for small computer systems. It’s not a bad choice for small retail operations and offices, especially in rural ares where other bandwidth services are hard to come by.

Most users are used to higher bandwidths now, even on their smartphones. They expect faster response and really need it to efficiently do their jobs. That’s OK. You can get higher bandwidth from T1 lines. It’s done by bonding two or more together to make one large pipe. The size of that bandwidth pipe ranges from 3 Mbps on up to about 10 or 12 Mbps. If you need more than that, you’ll have to look elsewhere.

How About T3/DS3?
A faster version of T1 is T3, also known as DS3. The terms T3 and DS3 generally mean the same thing, although, strictly speaking, T3 refers to the physical line and DS3 is the organization of the data.

T3/DS3 isn’t just a little faster than T1, it’s a lot faster at 45 Mbps. This is more than enough for most small operations and many medium size companies. That makes T3/DS3 the logical upgrade from T1, right?

Yes and no. T3/DS3 is, indeed, a popular line service. It’s available in many business locations, but not nearly as many as T1. That’s because T3 doesn’t use twisted copper pair wiring. It’s provisioned on a pair of coaxial cables. That’s only for the last few hundred feet at most. T3/DS3 is transported primarily by fiber optics. If the fiber passes near your location, you may be able to get T3/DS3. If not, you’ll need to stick with copper.

The Ethernet over Copper Option
A newer technology than T1 is called EoC or Ethernet over Copper. This never was a a telephone company product. It’s an extension of the LAN Ethernet protocol for metro connections. Whatever goes on your LAN can be carried by EoC.

The big advantage of Ethernet over Copper is that it uses the same twisted copper pair as T1 lines. A more advanced modulation scheme allows EoC to offer speeds ranging from 3 Mbps on up to 50 Mbps, sometimes higher. The tradeoff is that the farther you are from the provider office, the less bandwidth is available. EoC is quite popular in the 10 and 20 Mbps bandwidths.

Moving Up to Fiber
Carrier Ethernet is available over fiber as well as copper. This is called EoF or Ethernet over Fiber. Once you move up to fiber, the bandwidth limitations disappear. Fiber optic service typically starts at 10 Mbps, with 100 Mbps and 1 Gbps as popular service levels. Some companies and now requiring 10 Gbps EoC, which is more and more available.

You may already know that fiber optic service comes in two protocols: SONET and Ethernet over Fiber. SONET is an older service that is the fiber optic extension of T-Carrier. DS/T3 is generally transported to the curb over a SONET service.

Choosing Ethernet vs SONET
SONET fiber services typically range from OC3 at 155 Mbps on up to OC-192 at 10 Gbps, although higher bandwidths are available. The increments are 155 Mbps, 622 Mbps, 1.2 Gbps, 2.4 Gbps and 10 Gbps.

Carrier Ethernet works differently. There aren’t large increments in bandwidth. You can pretty much specify the bandwidth you want in the 10 Mbps to 10 Gbps range. Popular service levels are 10 Mbps, 100 Mbps and 1 Gbps. You’ll recognize these as standard Ethernet LAN speeds.

Ethernet over Fiber is not only much more scalable than SONET, it is generally less expensive. The cost difference can be dramatic in some locations. You may pay half or less for EoF as you would for SONET. You’ll still get highly reliable professional grade service with low latency, jitter and packet loss.

Are you feeling stymied by the limitations of your old T1 lines? Now may be the perfect time to migrate your connectivity to Ethernet over Fiber at a lower cost than you might expect. You’ll also be laying the groundwork for future expansion, with higher bandwidth levels quickly available as you need them.

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.

Options For Network Connectivity

Rare is the company that doesn’t need outside connections to its network. The issue is what type of connection will give you the most bang for your buck. Let’s have a look at the latest options that are attractive for small, medium and large enterprises.

Outside network connections break down into categories. Are you looking for something to get you across town? Those are the Metropolitan Area Networks (MAN). How about something that will take you to another state, across the country or overseas? Those are the Wide Area Networks (WAN). Perhaps all you want is a broadband connection to the Internet. No problem. Internet access is readily available for business users. There’s much more to choose from than in the consumer marketplace. The tradeoff is that you'll be paying something more than consumer prices.

Many metro and wide area network services are more alike than different. What you are probably seeking is a dedicated point to point service or a multipoint mesh network. Point to point private lines have been the domain of the telecom industry using standards developed for digital telephony. T1 lines are classic. They give you dedicated bandwidth of 1.5 Mbps in both the upload and download directions. When T1 is not enough, you can bond T1 lines together to incrementally increase bandwidth up to about 10 or 12 Mbps. At that point most companies jump to T3 (DS3) service at 45 Mbps and then SONET fiber services, starting with OC-3 at 155 Mbps.

There’s a new service widely available today that fills in the gap between T1 & T3 and costs less as well. This is Ethernet over Copper or EoC. Ethernet over Copper actually starts at 2 or 3 Mbps and has become a strong competitor to T1 lines. You can get twice the bandwidth with EoC for the same price as T1. The other advantage of EoC is that bandwidth levels increment smoothly past 10 Mbps. You can easily get 15, 20, 25, 30 or up to 45 Mbps. That lets EoC take on T3 / DS3 services with better pricing. In some areas, EoC goes right up to 100 Mbps Fast Ethernet and beyond. Those levels aren’t so widely available as of yet.

Another advantage of what’s called Carrier Ethernet is that you can get multipoint service as well as point to point. This is great for interconnecting multiple business locations in town or around the country. Each location needs an Ethernet over Copper connection. The service provider sets up the mesh network per standards of the Metro Ethernet Forum (MEF), an industry standards group.

There is also a competitor to SONET fiber optic services called Ethernet over Fiber (EoF). It works the same as EoC, but runs on fiber rather than twisted pair copper. The advantages are high bandwidth levels up to 10 Gbps and better pricing than traditional SONET telecom services.

When it comes to interconnecting multiple locations, especially foreign sites, MPLS networks have become the network connectivity option of choice. Why? Because these networks are already installed and running to many locations you want to go. What you need are on-ramps in the form of last mile connections. They can be as simple as T1 lines or EoC links. You can also install fiber optic lines to get higher bandwidth levels. MPLS can give you point to point, point to multi-point, or meshed network connections. Because the core network is already in place, pricing is very attractive compared to dedicated private lines that require engineering time and effort.

In addition to copper and fiber, fixed wireless connectivity is more available than ever. That’s thanks to the buildout of 3G and 4G networks by the cellular carriers. You can get business grade fixed wireless on these networks with bandwidth similar to T1 lines for such activities as credit card verification and network backup. Prices are very attractive, since the cellular carriers bore the cost of construction and paid for it from consumer smartphone data and voice contracts.

What sort of connection or connections do you need to connect your company network to suppliers, customers and your own operations? Compare network connectivity options and pricing for copper, fiber and wireless services to see what has become available recently.

EoC Takes On Fractional DS3

Before Carrier Ethernet became widely available, you had two logical migration paths from T1 to gain more bandwidth. You could take the big step up to T3 or DS3 service or bond T1 lines for a more incremental approach. EoC or Ethernet over Copper gives you a new and very attractive dedicated bandwidth option.

T1 lines have become popular because they are so readily available and have offered the right bandwidth for smaller companies and specialized uses by larger companies. A T1 line is rated at 1.5 Mbps in both the upload and download directions.

The other line service in the same T-Carrier family is T3 rated at 45 Mbps in both the up and down directions. At one time T3 was delivered over microwave and coaxial cable or waveguide, but that is rare to find now. Instead, the digital service the T3 delivers, DS3, is widely available over SONET fiber optic service. It is transported over a standard SONET service, OC-3, which can carry three DS3 services multiplexed onto the OC-3 fiber. DS3 is then demultiplexed and dropped off at the demarcation point through a standard DS3 interface. That interface is two small diameter coaxial copper cables with BNC connectors.

This works for a lot of companies. If you happen to be in a metropolitan area where metro fiber is readily available, it’s not hard to get provisioned for DS3 service. If you can make good use of 45 Mbps bandwidth and can afford it, DS3 is a fast and reliable telecom service. The question is what to do if you don’t need 45 Mbps, the budget isn’t there, but 1.5 Mbps is really cramping your style.

There are a couple of traditional approaches that can help you out here. One is to move up incrementally from T1 service. The other is to order a fractional DS3 service. It’s DS3 that’s throttled back do deliver less bandwidth at a lower cost.

You may be wondering how you scale up from T1 since DS3 is the next step up in the digital hierarchy. The answer is to combine the bandwidth of multiple T1 lines in a bonding process. You can order a second T1 line and have it bonded to the one you have to get 3 Mbps instead of 1.5 Mbps. Later on, you can add more lines and gradually work your way up to 10 or 12 Mbps. That’s pretty much the practical limit of T1 line bonding.

There are a couple of advantages to this approach. First, you don’t have to make a big bandwidth or cost commitment because you are moving up incrementally. This is the way a lot of businesses grow so it’s a good match. Second, your T1 service is provisioned over twisted pair telco wiring that’s likely already in place for multi-line telephone service. The added T1 lines use vacant pairs in the binder group, the bundle of wires that runs from your location back to the telco central office.

Why is that important? Because it eliminates big construction costs which you may not be able to avoid if you have new fiber optic service installed. If no DS3 is available, you may be stuck with copper or forced to pay a large construction bill. Even if DS3 is an option, fractional DS3 service may not save you that much money over a full DS3 service. The cost savings is not proportional to the bandwidth reduction.

Is there a good solution for this dilemma? Oh, yes. There is now. It’s a fairly new service called Ethernet over Copper or EoC. Like T1, EoC is provisioned over twisted pair telco wiring that is already installed. Like fractional DS3, you can get bandwidths far above what T1 lines offer. Unlike either bonded T1 or DS3 and fractional DS3, EoC has a very attractive per-Mbps pricing.

2x2 Mbps and 3x3 Mbps are very popular Ethernet over Copper services for smaller businesses. The 2x2 means 2 Mbps upload and 2 Mbps download. It’s also called 2 Mbps EoC. The 3 Mbps bandwidth level works similarly. What you might not know is that you can get 2 or 3 Mbps EoC for the same price as a 1.5 Mbps T1 line. Exactly how much you can get for T1 price levels depends on how competitive the carriers are in your location. Either way, it’s more bandwidth for the same money.

The other interesting feature of Ethernet over Copper is that you can easily get 5, 10, 15, 20, 25, 30 and perhaps even 45 Mbps delivered over copper and not fiber. Pricing per Mbps beats T1 and DS3 and can be as little as half the monthly cost. The limiting factor is distance from the CO. Ethernet over Copper technology is distance limited and not readily available more than a mile or two from the central office. Still, that covers a majority of business locations nationwide.

Are you stymied by the lack of bandwidth options or the costs involved in trying to connect via T1 or DS3? If so, check out Ethernet over Copper prices and availability for your particular business locations. You may be surprised by how much you can get for your bandwidth dollar.

Who Still Needs a T1?

With all the hoopla over copper and fiber Ethernet, plus new options in Cable broadband, that stalwart of business connectivity, the T1 line, is getting little fanfare these days. Does that mean that T1 is on its last legs? Or, is there a future for this proven telecom service?

Far from fading out, T1 is as popular as ever. New installations are being provisioned as you read this. The fact that T1 has been around for decades is one of its strongest features. That and the decline of T1 prices in tandem with competing Ethernet over Copper services are keeping T1 in the game.

So, who really needs T1? You do if you need professional grade dedicated bandwidth, secure point to point connections, or robust telephone trunking. That’s especially true if your business location is a bit off the beaten track. If you can’t get any wireline service other than plain old telephone, you probably can get a T1 line installed.

T1 has almost universal connectivity today. To understand how that can be when DSL and Cable rarely go past the city limits and Ethernet services are mostly found in business districts, we have to look back at why T1 was developed in the first place. We think of T1 lines as wide area network connections today, but in the beginning T1 was a telephone trunking system.

Prior to WWII, telephone companies connected to each other through analog lines on telephone poles or underground cables. Carrier telephony used a frequency division multiplexing scheme to load multiple conversations onto a single pair. In the 1950’s, Bell Labs developed digital multiplexing to replace the analog systems. The basic digital trunk was defined in the T-Carrier specifications. T-Carrier includes T1 and T3 lines.

The genius behind the design of T1 is that it runs on two pair of ordinary twisted pair copper. This is the subscriber loop connection that is installed in every business for telephone service. The wires are the same, but the signals on a T1 line are digital, not analog. While one copper pair can carry one business phone line, two copper pair can carry 24 phone lines or a digital bandwidth connection of 1.5 Mbps.

Another smart thing about the design of T1 is that provisions were made to boost the signal so that it can connect far flung locations. Not every business location is within a few thousand feet of a telco central office. Even analog signals fade out with distance. The much higher digital signal frequencies fade out much quicker. That’s why DSL is hard to come by. Unless you are close to the phone company CO, the DSL signal has little bandwidth capability left by the time it gets to your place.

The T1 support system was designed with a device called a regenerative repeater that can be installed in the line every mile or so to complete regenerate the signal. The noisy and faded input signal is boosted and reshaped so that at the output it looks like what comes out of the central office. Keep adding these repeaters and you can extend T1 service far out into the countryside.

If you have a business on the edge of town or in a remote location, you may still be able to get a T1 line for a reasonable price. The only real competition is two way satellite broadband. It works, but has very long latency times that make telephone service perform poorly, is subject to rain and snow outages, and has download limitations. If you exceed your quota, your speed will be reduced so that you don’t hog the limited resources of the satellite.

T1 has none of those problems. You get a rock solid 1.5 Mbps in both the upload and download direction. Load it full up with data transfers 24/7 or use what you need, the price is the same. Latency is negligible for most applications. In fact, T1 works great as a multi-telephone service or in the ISDN PRI configuration that supports most PBX telephone systems. You don’t have to get an Internet only data connections. T1 lines can be ordered between two business locations for a private line connection.

Is T1 the right service for your needs? Check T1 prices and availability instantly and compare with other options... if there are any that are suitable.

GigE and FastE Bandwidth Services

Bandwidth upgrades are a matter of course these days. Many companies are moving from T1 line speeds at 1.5 Mbps up to 3x3 Mbps or 10x10 Mbps Ethernet. Often there is little or no additional cost involved in doing so. But what if these bandwidth levels are still to low for your needs? Are there any opportunities at the 100 to 1000 Mbps level?

Carrier Ethernet is now the service to pursue at medium and high bandwidth speeds. These service levels have been dominated by DS3 or T3 lines at 45 Mbps and SONET OCx for higher line speeds over fiber optic cable. Ethernet bandwidth has a cost advantage for this need and also provisioning flexibility.

It’s common knowledge that low and mid-band Ethernet services are readily available over twisted pair copper wiring. In other words, the same telco wires that you currently use for analog business phone lines and T1 lines can also be used to transport Ethernet protocol. The service requires specialized equipment at each end and multiple copper pairs. This is Ethernet over Copper. Bandwidth levels vary from 1 Mbps on up 100 Mbps and beyond. A 200 Mbps service is available in some areas and a new 400 Mbps asymmetrical Internet access is being rolled out.

Most companies opt for Ethernet as a last mile connection to the Internet, metro or wide area MPLS network with bandwidth up to 50 Mbps. This is a direct replacement for their existing copper wire T1, bonded T1 or DS3 connections. By moving up the speed range to 100 Mbps to 400 Mbps, Ethernet can directly replace such fiber optic services as OC-3 at 155 Mbps and perhaps OC-12 at 622 Mbps.

All of this is done over up to 8 bonded copper pair at distances that don’t exceed a few thousand feet to a few miles from the telco central office. This is no problem in densely populated business districts, but as you move out into the burbs, small cities and rural areas, service becomes less available. Ethernet over Copper has a definite distance limitation.

Fast Ethernet at 100 Mbps may be available over copper, but Ethernet over Fiber is a better bet. The beauty of fiber is that once you have it installed and your building is “lit”, just about any bandwidth is possible. That includes FastE, of course, at 100 Mbps, GigE or Gigabit Ethernet at 1,000 Mbps and 10 GigE or 10 Gigabit Ethernet at 10,000 Mbps.

Ethernet over Fiber is available from traditional telephone companies, but it is also available from competitive carriers who have built their own IP-core regional and national networks with Ethernet as a standard service. These companies can bring Ethernet right to your building without having to lease any telephone company facilities. This gives them the ability to offer more bandwidth for less money. You may save half or more for equivalent service levels at the higher bandwidths.

A new wrinkle is Ethernet over Fiber offered by Cable MSOs. This fiber was bought and paid for by the Cable Television industry, but has so much extra bandwidth available that these companies are offering access to their fiber optic networks to businesses and other organizations that need anywhere from 10 to 1000 Gbps. That includes Fast Ethernet and Gigabit Ethernet at prices that are up to half the cost of other fiber providers.

The options are many and the prices are very attractive right now. There is lots of bandwidth to go around, which may not be true when the economy takes off again. If you need to speed up your networks, you can lock in some excellent deals. Check prices and availability for GigE and FastE bandwidth services appropriate for your business location.

50 Mbps Ethernet Takes on DS3

DS3 connections have been the traditional upgrade path for companies that have outgrown their T1 lines. But now there’s a newer technology service that gives you more bandwidth at less cost than DS3 and offers an easy upgrade path. That service is 50 Mbps Ethernet.

Let’s see why DS3 has become such a popular bandwidth service and why it will likely be replaced by Carrier Ethernet. A DS3, sometimes called a T3 line, isn’t simply 3x the bandwidth you get with T1. It is 28x the bandwidth. So if you have a 1.5 Mbps T1 line and you upgrade to DS3 service, your new bandwidth is about 45 Mbps. Those numbers are actually rounded so the multiplication isn’t exact. There are also overhead bits that must be assigned to manage a DS3 circuit.

As you might suspect, T1 and DS3 are in the same technology family. The tipoff is that DS3 is also called a T3 line. The “T” designation comes from “T-Carrier,” a set of specifications developed by the phone companies right after WWII to convert analog telephone trunks to digital. The T-Carrier specs are based on a 64 Kbps channel called a DS0 for Digital Signal level 0. A DS1 is comprised of 24 DS0 channels or 1.536 Mbps plus 8 Kbps for synchronization and maintenance for a total of 1.544 Mbps. That’s the T1 line speed.

A T3 line is also composed of DS0 channels at the most basic level. What’s so important about DS0 is that it is exactly the right size to carry one digitized telephone call. These channels can also be used to carry data packets instead of phone conversations. Package 672 DS0 channels together plus synchronization and maintenance bits and you have a DS3 running at 44.736 Mbps. That’s the T3 line speed.

T1 lines were designed to be delivered on 2 pair of ordinary twisted pair copper telephone wiring in a multi-pair binder cable. T3 lines were designed to be delivered on coaxial copper line or microwave transmission. Today, fiber optic cable is generally used to transport DS3 and higher bandwidth services. Bonded copper pair may get the job done over short distances, but is only found in densely populated cities.

The fact is that an upgrade from T1 to DS3 is a major move that requires equipment replacement, perhaps significant construction costs, and a considerable monthly lease price increase. Once you run out of bandwidth on a DS3, you need to move up to the next level of compatible services, OC3, at 155.52 Mbps.

What’s the competition for T1, DS3, OC3 and above? It’s a completely different family of network services called Carrier Ethernet, also known as Metro Ethernet. Carrier Ethernet has more in common with LAN Ethernet than it does with T-Carrier technology. T-Carrier was designed to transport telephone calls. Ethernet was designed to transport data packets. Yes, Ethernet can also be used to carry phone calls and does so exquisitely on converged voice and data networks. An Ethernet connection used to transport telephone traffic may also be called a SIP Trunk.

Now, let’s look at the replacement services for the old T-Carrier system. EoC or Ethernet over Copper is a direct replacement for T1 lines. There are two major benefits to going with EoC. First, the bandwidth is higher. A 2 or 3 Mbps Ethernet over Copper service replaces a 1.5 Mbps T1 line. The cost for both services is roughly the same. When you want to, you can upgrade to 10 or 20 Mbps over copper for more bandwidth.

The replacement for DS3 or T3 lines is 50 Mbps Ethernet. You get a modest increase in bandwidth and you’ll likely see a significant reduction in your monthly line services bill. It is not uncommon to pay half or less for 50 Mbps Ethernet compared with DS3.

You’ll need a fiber optic connection for either service. There is no standard fiber service that runs at the DS3 speed, so it is delivered on a SONET OC3 service using just a third of the available bandwidth. Ethernet is far more scalable. 10 Mbps, 100 Mbps and 1000 Mbps are standard network speeds, but you can get a wide range of increments between these levels. A good strategy is to order the Ethernet bandwidth you need now with an eye to easily upgrading to an incrementally higher speed as needed. The trick is to have an Ethernet port installed that can handle the maximum bandwidth you anticipate needing. If you have a 100 Mbps port, you can get 50 Mbps Ethernet out of that port now and then upgrade in steps to the maximum capacity of 100 Mbps later. Often, this can be done quickly and easily with a simple phone call to your service provider.

Are you anticipating a major WAN bandwidth upgrade, or are you already using DS3 service and either want more bandwidth or lower pricing? If so, get 50 Mbps Ethernet pricing and availability before you make any decisions. It’s a service that will serve you well in the coming years and offer a compelling cost savings as well.

Reduce Expense of T3 or DS3

You currently have or are considering 45 Mbps service using T3 or DS3. Before you re-sign or initiate a new contract, take a look at how you might save considerable expense in the process.

T3 and DS3 are often considered to be identical. They’re not, but they are very close technically. T3 refers to a specific T-carrier system created by Bell Labs. It can transport 45 Mbps of data in both directions (full duplex) or 672 telephone conversations. Do you have a T1 line now? It is part of the same T-carrier system. A T3 line can carry 28 T1 lines, to give you an idea about how much bandwidth 45 Mbps represents.

DS3 is the digital signal that rides on a T3 line. It is the specification that describes how you get all those telephone calls or T1 lines worth of data into that particular format of data stream. In other words, a physical T3 line transports a DS3 formatted digital signal. Sounds almost redundant until you learn that there are other ways to transport that DS3 signal. Most important is using a compatible fiber optic SONET connection. OC3, the lowest level of SONET fiber service generally available, runs at 156 Mbps and can transport three independent DS3 signals. A service provider might drop off one at your locations and another down the block. Or you might order an OC3 and break out the 3 streams yourself if you need that much bandwidth.

How, exactly, you get DS3 service to your PBX phone system or network router depends on what service providers in your area are offering. In dense metropolitan locations you may be able to get DS3 service via fixed wireless microwave connection, as well as fiber optic cable and perhaps coaxial copper wire. You’ll connect from the carrier’s termination to your DS3 router using a pair of copper coaxial jumper cables.

The fact that there are different delivery mechanisms for DS3 is one key to being able to reduce your telecom line expense. Not too long ago, the local telephone company was the only one offering this service. Now there are competitive carriers, each with their own fiber or wireless networks, who aggressively pursue high bandwidth customers. That has tended to drop the cost of DS3 service dramatically in recent years.

If you don’t specifically need DS3, but only the bandwidth level that DS3 can provide, there is another option you should seriously consider. That is metro or carrier Ethernet. At the 45 Mbps level, Ethernet may be delivered to your location by either fiber optic line or bundled copper pair. The copper solution only works within a short distance of the carrier’s nearest point of presence. But not everyone needs the full 45 Mbps. If your requirement is, say, 20 Mbps, then you may be able to get EoC or Ethernet over Copper over a wider area than is available for 45 Mbps service. You’ll also pay less, since Ethernet is priced per Mbps.

Ethernet is also a good choice for companies that have an immediate and anticipated need for more than 45 Mbps. It is a scalable service, so you can get 50 Mbps now and upgrade to 100 or 200 Mbps later without a major effort. Ethernet at these levels is delivered by fiber optic cabling. Fiber support an almost unlimited bandwidth capacity. Ethernet services are readily available at 100 Mbps Fast Ethernet, 1,000 Mbps Gigabit Ethernet and 10 GigE.

Does your organization have a need for increased bandwidth or would you like to check competitive prices before you commit to a new contract? Our Telarus consultants will be happy to get you a listing of bandwidths and pricing for DS3, Ethernet and other bandwidth services available for your location. As a bandwidth broker, Telarus works with dozens of carriers and can get you more competitive pricing than you could hope to get on your own. Best of all, this is a complementary service for all serious business applications.

The DS1 DS3 Relationship

If you are involved with business telecommunications networking or need to be, you have probably heard the terms DS1 and DS3 bandied about. But what do these terms really mean and where did they come from?

The DS in DS1 and DS3 stands for Digital Signal level. It is a designation that is used to specify the capacity of a digital line in the T-carrier system. You know the most popular T-carrier service as T1. Another popular service is T3. In simple terms, DS1 goes along with T1 and DS3 goes along with T3.

Now, let’s see what’s behind these DS levels and T-carriers. The history of this system goes back to the 1950’s, when Bell Labs recognized the advantage of changing from an all-analog telephone system to digital connections between telephone company offices. Digital transmission carries many conversations on few wires and eliminates the noise and cross-talk that were commonly heard on long distance calls at that time.

The most basic service is one two-way telephone conversation. That was made the most basic element of the T-carrier system and given the designation DS0 or Digital Signal level zero. A DS0 signal is the digital representation of a single voice call. It has a bandwidth of 64 Kbps formed by sampling the audio conversation at a rate of 8 Kbps with 8 bits of data. Those numbers are critical, because they represent the minimum bandwidth needed to give the same audio quality as an equivalent analog phone line.

If a DS0 is one phone call and consumes 64 Kbps of bandwidth, then what is a DS1? DS1 is a collection of 24 DS0 “channels” packed together in a bundle. That’s 24 separate telephone conversations. The bandwidth for this bundle is 1.536 Mbps. When you add 8 Kbps for synchronization, the total bandwidth is 1.544 Mbps. It’s commonly referred to as 1.5 Mbps. A T1 line is a DS1 digital signal package carried on a very specific physical network consisting of 2 pair of twisted pair telco wires with a defined voltage and waveform characteristic.

That’s what DS1 means. Now, how about DS3? If you bundle 28 DS1 signals, the equivalent of 672 DS0 voice channels, you get a DS3. The bandwidth of this signal is 44.736 Mbps, often referred to as 45 Mbps. A T3 line carries a DS3 signal on coaxial cable, although T3 service may also be sent by microwave.

Now, here’s where things get interesting. You can generate the DS digital signal protocol but not necessarily use a T1 line or T3 line for transport. In a process called multiplexing, multiple DS1 and DS3 signals can be combined and transported over fiber optic cable. The SONET fiber optic services were designed to directly accommodate this. The lowest bandwidth SONET service generally available is OC3, which carries 3 multiplexed DS3 signals with a total bandwidth of 155.52 Mbps. When the signals get to where they are needed, they are separated or demultiplexed to get back the 3 DS3 signals, which might be constructed of 28 DS1 signals each.

When used to transport data packets instead of telephone calls, the individual channels are generally invisible to the end user, although they exist within the T-carrier and SONET systems. DS1 and T1 can be said to have a bandwidth 1.5 Mbps. DS3 and T3 can be said to have a bandwidth of 45 Mbps. It is these numbers that you can use to compare pricing with competing telecom services , such as Metro Ethernet.

Moving from DS3 to Fast Ethernet

Companies needing larger amounts of bandwidth to support hundreds of Internet users, video feeds, ISP backbones, medical imaging transmission, and remote data storage have traditionally moved up from T1 lines to DS3 service. Now there's another option that can offer advantages such as lower monthly lease prices, high bandwidths and easier network integration. That option is Ethernet.

Ethernet? Isn't that the protocol of the Local Area Network? Indeed it is. But now Carrier Ethernet offerings from competitive providers can take your Ethernet LAN and extend it across town or across the country, even around the world. The WAN bandwidth market has changed dramatically in the last year. Can you benefit from the newer services? Is it worth you while to change? Let's see.

DS3's popularity stemmed from its being in the same technology family as T1. T1 lines are nearly universally available and the first professional grade voice and data lines that most businesses install. The T-Carrier system with its DS levels is a family of services developed by the telephone companies and then adopted by competing carriers under deregulation. DS1 is 1.5 Mbps and rides on a T1 line. DS3 is 45 Mbps and rides on a T3 line or fiber optic SONET line.

Ethernet is a different animal altogether. It is based on packets and not the channels that divide up the T-Carrier system. Ethernet has its own family of services. Basic Ethernet is 10 Mbps. Fast Ethernet is 100 Mbps. Gigabit Ethernet is 1000 Mbps or 1 Gbps. A faster service is 10GigE which is 10 Gbps, a common core bandwidth for national carriers.

So why would you make a move from DS3 to, say, Fast Ethernet? First of all, for the bandwidth increase. DS3 is 45 Mbps. Fast Ethernet is 100 Mbps. Second, for the cost savings. Fast Ethernet service might be had for half the cost of a DS3 connection. Yet, you get over twice the bandwidth. It's something like a 5:1 advantage for Ethernet in this speed range. Gigabit Ethernet is even more advantageous on a cost per Mbps basis.

Another advantage is network administration. Your IT staff is familiar with managing Ethernet based networks. While Ethernet can be transported on DS3 using protocol conversion, it's more efficient and more straightforward to keep it Ethernet all the way.

Whether you needs are for Ethernet in the metro area, long haul point to point connections, or a mesh network connecting multiple locations together, you should have a look at the value for the dollar you can get now. It's truly a changed market from what you expected to pay when you signed your last service bandwidth. Take a few minutes and see if your building is already lit for Ethernet. Even if it isn't, carriers may still be willing to connect you to a nearby POP (Point of Presence).

The Many Flavors of Ethernet Transport

The availability of Ethernet for MAN (Metropolitan Area Network) and WAN (Wide Area Network) transport is popping up all over. Why? Simply because Ethernet is in demand by IT and telecommunications managers looking to get the most Megabits per second at the lowest price for their companies. Ethernet also offers easier management. Multiple locations can be tied together as a large single network.

The very best situation is a direct fiber optic connection from a competitive carrier's point of presence (POP) to your premises. A large national carrier, such as XO communications, can provide first mile connectivity, transport throughout your metro area, and long haul service across the country. Ethernet over Fiber, or EoF, on a carrier designed for IP transport is highly efficient and results in cost savings far beyond what you may be expecting.

But what if you aren't lucky enough to be in a major office complex located in a metropolitan downtown area, just blocks from carrier facilities and already provisioned or "lit" for fiber optic service? Ah, that's were the creative solutions come in.

Ethernet has been widely implemented as a baseband technology for LAN networks. This means that rather than multiplexing the Ethernet signal on a carrier of any sort, it occupies the entire bandwidth of the cabling that carries it. This is still reflected in terms like 10 Base T or 100 Base T. the word "base" refers to baseband. The Ethernet signal is actually packets of information, each carrying up to 1500 bytes of user data.

Once you want to transport your LAN traffic over longer distances than local area network connections, it needs to be carried by a signal or "carrier" that can travel long distances. Actually, just about any digital communications system can carry the individual Ethernet packets as long as it has enough speed or bandwidth to be worthwhile. That includes the T-Carrier system developed by the phone companies to transport digitized phone calls, SONET (Synchronous Optical NETwork) fiber optic carriers, microwave relay and WiFi radios, and point to point optical lasers.

The T-Carriers are especially useful because they've been deployed all over the country and are a mature technology of the phone companies. T1 is the most familiar of the T-Carriers. It is the defacto standard for PBX telephone, dedicated Internet and point to point data transfers for small and medium sized companies. T1 lines are provisioned on twisted pair copper wire. In other words, phone lines. So, T1 lines go everywhere. Using protocol conversion to get packets to and from T1 frames, T1 lines can carry Ethernet. This is often referred to as Ethernet over T1( EoT1) or Ethernet over DS1 (EoDS1). DS1 is the definition of the Data Signal or framing specification for T1 lines.

A related service is Ethernet over DS3, EoDS3. DS3 is the Data Signal level for T3 lines that is also used for SONET fiber optic service. DS1 offers 1.5 Mbps of bandwidth, just a fraction of standard 10 Mbps Ethernet. DS3, however, offers 45 Mbps of bandwidth, almost half of a 100 Mbps Fast Ethernet signal.

When Ethernet is provisioned on T1 twisted pair or T3 coaxial cable, it may be referred to as EoC or Ethernet over Copper. There are other short distance modulation schemes that offer higher bandwidths using in-place copper wiring for that last mile or few hundred feet of connectivity. The big advantage of copper is that it is likely already in place for phone service. Fiber optic carriers offer higher bandwidths to easily support 10 Mbps, 100 Mbps and 1,000 Mbps Ethernet transport, but the cost of construction may be prohibitive unless you are near a carrier POP or are willing to commit to large bandwidth usage.

Which business bandwidth services make the most sense for your organization? Find out which nearby locations are already provisioned for Ethernet service and let our expert consultants help you find the most cost effective services for your needs.

Are Your Pipes Fat Enough?

As the resolution of data increases, WAN bandwidth can quickly become a choke point. Think of what happens when you get a kink in your garden hose. The data is the water and the pressure is the bandwidth demand. Any kink causes flow to decrease to a trickle, while the pressure or demand remains. A data link is like a water pipe in this way. Even when the kinks are removed through diligent network engineering, you can only move so much data though the pipe. If you want to move data more quickly, you need a fatter pipe.

Fat data pipes are becoming a necessity as electronic business data increases in quantity and resolution. An example of resolution is medical imaging files. They can easily be many Megabits, even Gigabits, per image. Try transmitting those through a 64 Kbps ISDN BRI channel and you'll feel like you're trying to fill a swimming pool with a kinked garden hose. Engineering firms are also switching from sending large drawings through the mail to transmitting them electronically to branch offices or customer locations. FAX transmissions need only small pipes, like telephone lines. Detailed blueprints and 3-D models that can be printed or modified remotely need fat pipes to transmit them in any reasonable time frame.

Video post production is another field where the medium has gone from film to video tape to digital data on disk. Sure, you can load the production onto video disks, hard disks, or magnetic tape and physically transport them from location to location. But that burns precious time. If you are on a tight production schedule or need to support live programming, a courier service isn't going to cut it. You need to be able to press the send button and have the file transfer in seconds or minutes to another location.

So what is a fatter pipe in the telecommunications vernacular? Serious bandwidth starts at the T1 level with 1.5 Mbps bidirectionally. A T1 line will send files of a few Megabytes in seconds. Often this is fine for text based contracts and specifications, low to medium resolution photographs, smaller CAD files general accounting and inventory updates, and many real-time IP security cameras. If you want to transmit more files in the same time, transmit larger files without having to wait hours or longer, or speed up the transfer of what you are doing now, you'll need a fatter pipe.

You can fatten a T1 pipe by bonding in more T1 lines. Bond a second line and you double your bandwidth from 1.5 to 3 Mbps. Bonding works up to 10 or 12 Mbps in many locations before it gets more expensive than moving up to a single fatter pipe.

The next fatter pipe is the T3 line at 45 Mbps. That's a substantial jump of 28x the capacity of a T1 line (the bandwidths mentioned are rounded figures). T3 lines are often used for real time video transport, high resolution images, large engineering files, and data backups to remote data centers. You can get this same bandwidth on a fiber optic carrier, where it is called DS3 service. In fact, DS3 over SONET fiber is more commonly found now than coaxial T3 lines.

If your facilities are wired for fiber, there is practically no limit to the available bandwidth. It's primarily a matter of budget, as fiber optic services start in the thousands of dollars per month and go up from there. But, when time is of the essence or team collaboration can multiply efficiency, even massively fat pipes may well justify their cost. With fiber optic services, you can get OC3 at 155 Mbps, OC12 at 622 Mbps, or OC48 at 2.5 Gbps. In many metropolitan areas you can also find native Ethernet services at 10 Mbps, Fast Ethernet at 100 Mbps and GigE at 1,000 Mbps or 1 Gbps. At these line speeds, the WAN bottleneck can disappear as the speed of the entire network becomes equal.

So, are your data pipes fat enough or are you feeling the "pinch" of data slowing down as it leaves your LAN network for transmission to other facilities? The good news is that WAN bandwidth prices have come down greatly in the last few years. The cost of an upgrade to meet the transmission speeds you need now may be much less than you suspect. Why now let our team of bandwidth professionals take a look at your application needs and offer you a suite of competitive options?