VPLS over MPLS Connects Locations Worldwide

MPLS networks are replacing older technologies such as frame relay and TDM point to point connections. It’s all part of the switchover from switched circuit to packet switched networks as a realization that legacy telephone traffic plays a minor role in worldwide voice, data and video communications.

MPLS is becoming the WAN of choice because of its versatility. The MP of MPLS stands for Multi-Protocol. MPLS networks aren’t fussy about the type of traffic they transport. Each packet gets a wrapper label and the LS or Label Switching makes sure it gets from source to destination intact.

There’s another networking technology that is also coming on strong. That is VPLS or Virtual Private LAN Service. VPLS is an Ethernet WAN service that connects multiple company LANs as if they were one much larger LAN that includes sites all over the world.

“That’s it,” you say. “I want VPLS not MPLS.”

Ah, not so fast. VPLS isn’t a network by itself. It needs MPLS networks to transport it. VPLS is a service running on MPLS. It’s one of those multi-protocols that MPLS networks carry so well.

Technically, VPLS uses a concept called pseudo-wires. Pseudo what? The name suggests what this is. It’s the emulation of a wired connection through a network. A real wire would be used for point to point private line service. You would lease the line and it would be “nailed up” or dedicated to your exclusive use for the duration of the lease. Pseudo wires are a way to establish private lines within packet switched networks. The idea is to create a transparent wire that can be used to carry a service from point A to point B.

Think of a pseudo-wire just like a length of Ethernet cable on your LAN. The wire doesn’t interfere with your protocol. The pseudo-wire doesn’t interfere with your protocol on the WAN. By establishing pseudo-wires through the MPLS network, it is possible to string virtual LAN wires hundreds or thousands of miles long. This is one of the tricks behind extending your LAN beyond the boundary lines of your property.

The other trick is for the network to emulate a switch or bridge to create a meshed network so that all locations can communicate as if they were on a bridged LAN. VPLS is a multi-point service. If all you wanted to do is connect two locations, you’d probably just get Ethernet Line Service using a pseudowire through the MPLS network.

The MPLS network can be thought of as a cloud that transports data and creates a multipoint switched network for interconnecting two or more business LANs. That can be anywhere from a few locations in the same state up to hundreds or thousands of locations across the globe. Because it is a cloud, you don’t have to worry about how the packets get from anywhere to anywhere. That’s the network provider’s job. All you need to do is get to that cloud from wherever you need a connection.

Those “last mile” connections can be a variety of protocols and a variety of bandwidths. If you want VPLS service, you’ll need to have Ethernet connections in the last mile. Those can be Ethernet over Copper, Ethernet over Fiber, Even Ethernet over DS1 or DS3 in situations where EoC isn’t available.

This brings up another option. If you don’t need layer 2 connectivity between LANs and simply want a WAN connection to transfer files between locations, you can set up a MPLS VPN service. This can use layer 3 routing just like you might create with a collection of private lines or over the Internet. One advantage is that you can use any protocol connectivity, such as T1 lines, DSL, SONET fiber optic and so on. Each location can have a different type of connection. The network will accept your packets, wrap them in MPLS labels and get them where they are supposed to go.

How about your WAN connectivity? Could you do better regarding bandwidth, quality of service or cost? Get competitive quotes for VPLS over MPLS and MPLS VPN network services to check available options for your business locations.




Note: World map graphic courtesy of Wikimedia Commons.

What Is VoIP For Business?

There’s a lot of buzz these days about the advantages of converting from traditional telephone services to VoIP. There are, indeed, major advantages for businesses to go with enterprise VoIP solutions. However, there are some pitfalls to avoid if you want to make the transition successfully. First, though, let’s take a closer look at just what VoIP is and how it differs from the phone service you have now.

One confusing aspect of VoIP is the name itself. The term VoIP is an acronym for Voice over Internet Protocol. The thing that jumps right off the page at you is the term “Internet.” It immediately conjures up visions of broadband phone solutions that piggyback on top of Cable broadband or DSL connections. That is, indeed, VOICE going OVER the INTERNET. It’s also one example of VoIP. However, it is far from the complete story.

The idea behind broadband phone is that with the right equipment you can use your broadband Internet service to connect you to a competitive phone company. The whole impetus for this is that the local telephone company, called the ILEC for Incumbent Local Exchange Carrier, pretty much owns you for local phone service. It’s easy to switch long distance providers, but much harder to change local services. Why? Because the ILEC owns the copper wires between your location, business or residential, and the switching equipment in their office. You can’t dig up the wires and move them elsewhere, so you need an alternative “phone line.” The Internet provides just such an alternative connection.

One of the major pitfalls of broadband phone is that the Internet was designed for transporting data reliably, not for transmitting voice quickly. Everything on the Internet is transported in packets. That includes data bits representing digitized phone conversations, video clips, websites, email and many other things. What they have in common is a standardized packet structure called IP or Internet Protocol.

Now, here’s where the trouble comes in. The Internet treats one packet just like the next. It doesn’t matter if they are zipping along smoothly or all clogged up. The system is set up to get each packet from Point A to Point B sooner or later. Having data correct is much more important than having it as soon as possible. If a packet gets lost or corrupted, another protocol called TCP or Transmission Control Protocol sees that the packet never arrived at its destination and retransmits it. As a user, this is all invisible. All you know is that your email or web page displayed correctly.

Voice differs from data in that it is a real time protocol. A voice packet that shows up late is of no use because the conversation has already moved on. VoIP is set up to discard missing or out of sequence packets. A few here and there won’t make a difference, but a lot of missing packets will punch holes in the conversation and make it hard to understand.

Video is equally sensitive or even more so. The way video stays intact is to have the packets go to a staging area before they are displayed on the screen. This area is the buffer. Buffering collects packets however they come in and then feeds them out smoothly to create a continuous picture stream. Buffering also works for audio and is used for Internet radio stations extensively. That way any congestion on the net won’t cause the audio to drop out.

Buffering could be used for VoIP, but not very much or it will create havoc. The tradeoff is that phone conversations are two-way. The buffer will cause a big delay from the time you start talking until the other person hears it. Buffering and other delays show up as something called latency which turns two way conversations into more like walkie talkie conversations. Only one person can talk at a time and you have to wait before taking your turn.

What’s better? Bypass the Internet and use a private line connection called a SIP Trunk. SIP is the switching and signaling protocol for VoIP telephony. The SIP Trunk is carefully engineered to give voice packets priority over data packets and to have enough bandwidth to avoid congestion that causes latency and jitter.

SIP Trunks connect your company to your business VoIP service provider. The provider takes care of all outside lines to the public phone system. You can connect the PBX phone system you have now using a SIP Trunk or use an IP PBX that uses IP telephones rather than standard analog phones. Even more interesting is hosted VoIP, which eliminates the in-house PBX system completely. The service provider gives you both lower rates to use the public telephone system and takes care of switching both inside and outside calls.

As you can see, there are various flavors of VoIP phone service available today. You want to be careful to pick a solution that not only saves you money but has the features and voice quality you need to conduct business effectively. Enterprise VoIP providers have solutions for all size businesses at attractive prices. Compare features and costs now to discover what’s available for your particular locations.

Ethernet over TDM

You’ve heard of Ethernet over Copper and Ethernet over Fiber, but have you heard of Ethernet over TDM? Here’s why it’s good to be familiar with this technology and what it can do for you.

TDM stands for Time Division Multiplexing. It’s the basis of T1 lines and SONET fiber optic carrier services. TDM was the chosen protocol of the Public Switched Telephone Network (PSTN) when the decision was made to transition from analog to digital mid-20th century. It is still important is because it is still around and going strong.

TDM is a way to transmit multiple signals on one digital line or wireless channel. The way TDM works is that a digital transmission is divided up into timeslots. Each timeslot contains the digitized information for one signal. All the timeslots are linked together like railroad cars into a frame that contains all of the digital bits, end to end. This frame is then transmitted from source to destination. Once one frame is sent another immediately follows.

Think of TDM as a round-robin polling process. You take a chunk of information from one source, then a chunk from another source, and so on. When you’ve got something from all sources that you wish to multiplex, then you start over with the first source again. That way you always have fresh data from frame to frame.

What TDM did for the phone companies was to pack 24 separate telephone calls onto one T1 line instead of 24 separate telephone wires. The multiplexing process combines all calls into one bitstream that is sent down the physical copper wires. At the other end, a complementary process called demultiplexing separates the individual calls so they can be used by particular telephones.

Ethernet is not a TDM process. Instead, it bundles bits of data into packages called packets. The packets are sent on their way individually when they are ready. There’s no assembling the packets into a multiplexed “train” so that they can all travel together. Each packet is switched and routed individually.

From the sound of it, you would think that TDM circuits, like T1 lines, and packet switched circuits, like Ethernet over Copper, would be incompatible. It’s true that they are completely different technologies and don’t exist on the same piece of wire at the same time. That would really create a mess and you’d get completely jumbled up data. However, clever engineering can let one protocol carry another. This is where the idea of Ethernet over TDM comes about.

How Ethernet over TDM works is that the underlying transmission protocol is TDM. A typical example is a T1 line. The T1 frames are transmitted at a rate of 1.5 Mbps from source to destination. Ethernet packets are loaded into those T1 frames. In this case all the claptrap associated with dividing the T1 line into 24 separate channels is ignored. The internal channels are combined so that Ethernet packets can use the entire frame. The T1 timing and waveforms are preserved so that T1 interfaces and signal regenerators will work as-is.

Why go to all this trouble to piggyback Ethernet on top of a T1 TDM system? It’s to give you more options. Ethernet over Copper is a distance limited technology that works great within a couple of miles from the central office, but loses signal strength and bandwidth fast as you get farther away. T1 has fewer distance limitations and delivers a steady bandwidth of 1.5 Mbps even out into rural areas. As a newer development, Ethernet over Copper is also less available than T1 lines that have been around for 50 years or more.

So, if you want the advantages of Ethernet that include bandwidth scalability, easy interfacing to your network, and standardized services such as Ethernet Line and Ethernet LAN, but can’t get Ethernet over Copper or Ethernet over Fiber, consider Ethernet over TDM. This is also known as Ethernet over T1 or Ethernet over DS1. Check pricing and availability on all Copper Ethernet Services now.

Hosted VoIP Can Improve Telephone Reliability

Many mid-size and even large companies insist on maintaining their own in-house telephone systems in the belief that it’s the only way to ensure reliable communications. Is this really true, or just one of those long held beliefs that need to be re-examined?

There’s been a major game changer introduced into the telephone services industry recently. It’s the rise of hosted PBX or HPBX. You’ll also hear it called hosted VoIP or communications in the cloud. Like everything else “in the cloud,” this is truly a revolution in technology. In a decade or two, we’ll look back and wonder why we didn’t always do it this way.

“Cloud, schmoud,” you say? I can see how you might feel that way, especially if you’ve been burned by a poor implementation of VoIP technology. VoIP isn’t a particular product or even standardized methodology. It’s a general class of voice communication based on packet switched network technology. VoIP runs the gamut from software running on a laptop computer at the coffee shop, to dongles that let you plug your telephone into a PC, to broadband phone that shares an Internet connection, all the way up to enterprise and even carrier level solutions that are indistinguishable from traditional phone systems to the caller.

What successful enterprise implementers of VoIP telephony know that others don’t realize is that you need a carefully engineered network from the telephone handset to the service provider to protect fragile voice packets from being crushed by more numerous and robust data packets. In most cases, that means stay off the Internet except when you absolutely have to in order to include a remote worker or someone traveling. One reason is that the Internet does not support Class of Service controls to ensure the integrity of voice packets. Other parameters, such as bandwidth, latency, jitter, packet loss and out of sequence packet arrivals are uncontrollable on the public Internet. All of these are readily managed on private lines, MPLS networks and SIP trunks.

With the connectivity issue solved, there is still the issue of reliability. Won’t an in-house hardware solution that’s been proven over years of operation be inherently more reliable than “something out there, somewhere?” Not when you realize that the “something” you are referring to is the latest high quality servers set up for redundant protection with multiple levels of backup power and complete environmental controls. Like everything else in the cloud, there is a lot of virtualization involved so that resources are available in depth and instantly scalable.

The hosted solutions provider absolutely must provide high quality service or they’ll go out of business. After all, this is either a major part of their business or all of it. They almost always have technical staff on duty 24/7 and keep up with maintenance activities. How about at your company?

This is where the superiority of in-house PBX starts to become suspect. First of all, is your system really that rock solid? Parts never fail? The power never glitches or goes completely off? You may have duplicated the security, environmental control and power backup of a SAS 70 Type II data center, especially if you need this facility for your IT equipment. On the other hand, if your PBX is simply sitting in a “telephone closet” or maintenance room where the phone and data lines come in, you may not be all that well protected against disasters.

How about the age of that machine? We know that computers go obsolete almost before they are unboxed. PBX phone systems aren’t quite that bad, but they do start to degrade as the years go by. At some point, it’s hard to find replacement parts or even someone knowledgeable to maintain the system and make repairs. New features are introduced into the telephony marketplace, but you can’t take advantage of them. Your system is just a bit too old to be upgraded. This is how obsolescence begins. Pretty soon, you’re patching together a dinosaur that should have been hit by a meteor years ago.

It is being recognized that hosted VoIP solutions can be as reliable and even more reliable than in-housed PBX telephone systems. You need to pick a quality supplier and install highly reliable network connections to gain the benefits of high reliability in the cloud. If you do that correctly, you’ll enjoy reliable communications, access to the latest productivity features, integration with mobile devices, and the cost savings of paying by the month only for what you need.

Has this discussion piqued your interest on how hosted solutions might be a better choice than what you have now? If so, get pricing and features for Hosted VoIP solutions that meet your particular requirements. See if you can’t get more value for the same or less cost than your current business telephone system.

Ethernet Service Providers Offer Cost Savings

One technological revolution quietly underway is the transition from circuit switched to packet switch WAN protocols. Many businesses first become aware that something is happening when they go to get price quotes for bandwidth upgrades or new line services. They expect to be buying a T1 line and find themselves ordering Ethernet over Copper instead. Why is this and what can you get for your bandwidth dollar these days?

The shifting ground of the telecom industry is being driven by a move to all-IP networks. The root cause is that computing devices, such as PCs, web servers, wireless access points, tablets, smartphones, telepresence, and IP PBX systems are generating network traffic that far exceeds traditional telephony. I included IP PBX in that group because an enterprise VoIP system with SIP phones connects via the LAN and uses Ethernet packets, not analog or proprietary digital signals. In most businesses, the common denominators are the LAN and the telephone network, with the phone network on the way out.

We’re now at a point where the crying need is to connect LANs together and to the Internet. We’ve been doing that with traditional telephone technologies such as T-Carrier and SONET for decades. If you were designing a comprehensive networking approach, would you pick one technology for the LAN and something completely different for metro and long haul networks? Wouldn’t you try to have a common protocol that runs everywhere for efficiency and ease of connection?

That’s what’s behind the rise of Carrier Ethernet. As more competitive carriers enter the market and older networks are upgraded, IP core networks are becoming more and more the rule. These are high speed fiber optic networks that have regional, national or even international service footprints. The last link in the chain is appropriately called the last mile connection. This is the wireline, fiber or wireless link that connects you to the service provider point of presence.

Ethernet services are available at every level of networking, from simple Internet access through international MPLS networks that link hundreds or thousands of sites. Most companies will want some type of dedicated Internet access. A 2x2 Mbps or 3x3 Mbps Ethernet over Copper line is a direct competitor to T1, at about the same price. It’s not uncommon to get twice the bandwidth for the same cost by choosing Ethernet rather than T-Carrier T1 or T3.

Ethernet is also more scalable than other telecom services. Typical bandwidth options include 2, 3, 5, 10, 15, 20, 30, 50, 75 and 100 Mbps. Other increments between these levels may also be available, depending on the carrier. Those are just Ethernet over Copper offerings. Ethernet over Fiber takes you to 250, 500, 750 and 1,000 Mbps or up to 10 GigE.

You may want to install Ethernet Private Line or Ethernet Virtual Private Line service for a point to point connection between two business connections, like headquarters and a branch office. This replaces T1 or DS3 private line service at a better price.

One service that Ethernet offers, that you won’t find with traditional point to point connections is E-LAN or Ethernet LAN Service. It connects multiple LANs in a mesh topology at the layer 2 level. This lets you build one giant LAN that includes all of your remote location LANs.

Would you like to expand your service options and save 50% or more on line pricing compared to what you have now? Get instant online Ethernet service pricing up to 1 Gbps now. More complex multi-site networks need a bit of manual work, but will be quoted promptly.

What Is MPLS?

You hear a lot about MPLS networks as a means of linking multiple business locations. But just what is MPLS and why it is better than other network topologies?

MPLS stands for Multi-Protocol Label Switching. It’s a completely different technology from what you may be familiar with in the way of either circuit switched or packet switched networks. You can transport IP traffic on an MPLS network but it does not use IP routing.

The beauty of MPLS networks is that they can transport nearly any protocol without having to do any protocol conversions to fit into the structure of the network. MPLS networks also offer a high degree of security because of their unique technology and because they are privately run networks available only to their customers. Quality of service is designed-in, which makes MPLS a good fit with enterprise VoIP and other latency sensitive applications.

Here’s a brief description of how MPLS works. You connect to the network “cloud” through a special device called a label edge router or LER. Since you are entering, this LER is an ingress router. At ingress, your packets are each encapsulated by adding a MPLS label to them. That label defines a FEC or forwarding equivalence class that determines where the packet is to be sent. As packets traverse the network, Label switching routers (LSR) look only at the label and not the internals of the packet to determine how to route them. At the destination, the labels are removed by a LER that functions as an egress router. The packet now exits the network looking exactly as it did upon entering.

It’s the use of the labels that makes MPLS unique and inherently more secure than, say, the Internet. Someone who found a way to snoop on the data traversing the MPLS network would be completely flummoxed since they would not have knowledge of labels used on that particular network. It’s far fetched that you’d have access to MPLS network data at all, since it does not traverse public networks. For this reason, MPLS networks are also called MPLS VPN. If you want even more security than this, you can encrypt your packets as well as transport them on an MPLS VPN.

MPLS networks support quality of service through the label technology and careful network engineering. The labels have a 3 bit traffic class field that designates quality of service, priority and explicit congestion notification. The network operator has the responsibility of ensuring there is adequate bandwidth to accommodate all customers. MPLS networks are designed for mesh networking, although they can also be set up as point to point connections to link two locations only.

With the move to Carrier Ethernet, MPLS networks are a natural for interconnecting large numbers of sites on a national or even international basis. Each site needs an access connection, which can be Ethernet over Copper or Ethernet over Fiber, depending on bandwidth requirements. The MPLS network will transport the Ethernet packets without changing them. This way you have an end to end Ethernet network without having to maintain a long haul network yourself. The transparency of MPLS lets you establish layer 2 switched connections if you desire them.

Economy of scale makes MPLS networks very cost effective for inter-state or international connections. You’ll have the quality of service you expect with dedicated line services along with the flexibility of a “cloud” that can accommodate additional site connections or increased bandwidth requirements easily.

Is a MPLS solution right for your organization? If you have multiple locations that need to be connected regardless of the protocol or application, you’ll want to get MPLS network services pricing for your particular needs.



Note: MPLS network diagram courtesy of Wikimedia Commons.

Voice over Internet Protocol Phone Services

Voice or Internet Protocol or VoIP appears destined to replace traditional wireline telephone services such as POTS (Plain Old Telephone Services) and even ISDN PRI digital trunks. What’s behind this shift in technology and what’s the key to maintaining voice quality with a new type of phone service.

The fundamental shift in technology can really be boiled down to a move toward computer networks and away from telephone networks. Also in the mix is the inclusion of wireless voice and data services that add another layer of complication.

Telephone networks started with Alexander Graham Bell and remained largely analog for most their century of dominance. Back when everyone had a telephone line and nobody knew what broadband meant, there was an effort to get the telephone system to do double duty as a means of voice communication and also computer communication via analog modems. This quickly hit its technical limit because the telephone network was designed for the human voice, which has a very low bandwidth requirement.

There was an effort to move to digital phone lines, called ISDN, but it was too little too late. Cable and DSL broadband offered much higher speeds at lower cost. Businesses ordered T1 and T3 lines, originally developed for digitizing phone lines and bundling them to save transmission costs between telco offices. These digital lines work just fine as point to point or dedicated Internet connections for data transmission. In fact, they’re still the most popular connectivity for small and medium businesses because of plunging prices and high reliability.

VoIP came out of the computer, not telephone, world. The IP stands for Internet Protocol, the most popular networking standard. Yes, it does say Internet protocol, but that doesn’t mean it is limited to the Internet. In fact, the Internet would have probably stayed an obscure academic network had it not been for the development of Ethernet as a way to connect computers and their peripherals.

The difference between telephone networks and computer networks is the difference between switched circuit networks and packet switched networks. Switched circuit networks, like the telephone network, actually switch connections to set up a private path for each phone call. This is bit like switching electrical circuits to power something as long as you need to use it. Packet switched networks are more like the US Mail. The network provides hard pathways to every destination. Each letter or packet gets where it is going by looking at the address for that individual packet and routing it accordingly.

VoIP is simply a way to send a set of packets in real time that are digitized pieces of a telephone conversation. Put them together end to end and the voice from the distant location is recreated. When it works well it sounds just like a telephone call, although you can also use a computer for two way conversations if it has a microphone and loudspeakers or earbuds.

Just like computers have struggled to press the century old telephone system into service for carrying data packets, computer networks have struggled with carrying sensitive voice packets on a system designed to reliably transfer data files even if parts had to be resent due to network errors. When VoIP goes bad, it sounds garbled and clips each side of the conversation. That’s a symptom of a network that isn’t optimized for real time voice packets that have to get through without error, jitter and time delay (latency).

The Internet is hit and miss when it comes to carrying VoIP telephony. If you have sufficient bandwidth and little congestion, you can experience a decent quality call. That’s especially true if cell phone call quality is what you are comparing to. If the Internet is having problems or getting congested, you may come to miss your old faithful landline.

Businesses that require optimal voice quality don’t use the Internet as their phone connection. Instead, they use private lines or MPLS networks that are engineered to support packet voice signals. You may hear this referred to as enterprise voice or enterprise VoIP, even though there is no Internet involved with the Internet protocol in this case.

Are you considering a move to VoIP with your next business telephone system upgrade? If so, be sure to understand the costs and tradeoffs with Internet vs non-Internet implementations. You can get that help along with pricing and availability for Enterprise VoIP telephony at no cost or obligation for serious business applications.

VoIP Phone Service Provides Flexibility

Small to medium size businesses may be thinking about upgrading their aging phone systems, but uncertain about which way to go. Do they buy a modernized and expanded version of the Key Telephone or PBX system they are using and keep everything else the same, or make the jump to VoIP phone service? What many may not realize is the flexibility of options you gain with VoIP solutions.

What differentiates VoIP from traditional telephone equipment and service is that it is network based. True, even a single line analog desk phone or cell phone is part of a network - the Public Switched Telephone Network (PSTN). The public telephone network is a very specific network that does one thing really well. It connects one telephone to another or perhaps one phone to a group of other phones for a conference call. It has its own technology and wiring standards. VoIP, on the other hand, is designed to share standard packet based computer networks.

There-in lies the flexibility of VoIP. You plug an IP phone into a network jack, just like you’d plug in a PC or printer. No separate wiring scheme is needed. It doesn’t even matter where the phone is located. IP phones are known by their unique addresses, not which pair of wires they happen to be connected to.

With analog telephones, you have a choice on whether to connect each of your phones to the telephone company on their own line or to install an in-house phone system to connect the phones and share the outside lines. With VoIP, you can also install an in-house phone system called an IP PBX or extend your network with all the phones to a service provider. This approach is called Hosted VoIP or Hosted PBX. The connection is called a SIP Trunk.

SIP Trunking gives smaller businesses the option of getting both their phone service and broadband service from the same provider. The SIP trunk can be divided so that voice packets and data packets don’t interfere. Your phone calls are never interrupted by someone download data at the same time. Using one trunk for both voice and data often results in a cost savings over having separate telephone lines and broadband connections.

Hosted PBX services give you the flexibility of locating your phones wherever you want them. This goes beyond just moving telephones around the building. You can have one phone sitting on a desk in New York and other in Seattle, both connected by SIP trunks to a hosted PBX in Dallas. From the caller’s perspective, all of this equipment could be in one building. They have no perception of how geographically spread out this operation is. This capability is also known as a virtual office.

For larger companies, enterprise level VoIP systems handle hundreds or even thousands of phones located at headquarters, regional sales offices and branch offices nationwide. Private SIP Trunks securely transport voice and data among the locations, avoiding telephone company toll charges for in-house calls. The PBX switching system can be located at any particular location or can be a hosted solution. The beauty of hosted VoIP is that you pay as you go. There is no need for an expensive investment in telephone switching equipment nor the staff to maintain and upgrade it. That’s all handled for you.

Can your company benefit from a more flexible communications system, perhaps including mobile phones as well as desk sets? If so, get pricing and features quotes for competing VoIP service providers. Then compare with what you have now and see if you can gain flexibility and perhaps cost savings as well.

Ethernet over Copper vs Bonded T1

T1 lines have been the gold standard for small and medium business connectivity. Their popularity has grown as pricing has plunged in recent years. Now there’s a newer technology service that gives you even more bandwidth for less money and is even easier to interface. That service is Ethernet over Copper.

Ethernet over Copper, or EoC, leverages one of the primary attributes of T1 lines. That’s their ability to be provisioned over ordinary twisted pair telephone wiring. A T1 lines comes into your facility in the same bundle of installed telephone wire that brings in multi-line telephone service. Because it is ordinary telco wire, most every business location in the country is already wired for service and enabled for T1.

T1 lines use two twisted pair versus one pair for an analog telephone line. One pair is used for the upstream connection. The other is used for the downstream connection. This gives you 1.5 Mbps in both directions at the same time, also called full duplex operation. T1 line prices have come down to several hundred dollars per month, although that number varies with location.

For about the same money you can get Ethernet over Copper bandwidth. But your Ethernet link will be running at 3 Mbps rather than 1.5 Mbps. Why the difference? It’s a matter of more efficient modulation technology. T1 was designed by the phone companies right after WWII to transport telephone calls digitally. Thus, it was designed as a synchronized system subdivided into 24 precise channels. It’s a great match for loading phone lines onto a digital trunk, but bears no resemblance to today’s network protocols. Ethernet is based on packets, not channels, and doesn’t need the T1 system for transport. In fact, it takes a protocol conversion to go back and forth from T1 to Ethernet.

T1 lines can compete with Ethernet over Copper by using more lines to increase bandwidth. Add another 2 pair for an additional T1 line and you can double your bandwidth from 1.5 Mbps to 3 Mbps. The process used to couple multiple T1 lines to create one effectively larger line is called bonding. As you might expect, Ethernet over Copper lines can also be bonded to create a larger bandwidth connection. T1 line bonding is practical up to 10 or 12 Mbps. EoC bonding can deliver bandwidths as high as 100 Mbps over very short distances. Standard Ethernet network speed of 10 Mbps is readily available. You can also get 15 or 20 Mbps service without too much trouble. Once bandwidth gets above 45 to 50 Mbps, it generally makes sense to move up to fiber optic connections.

The one rub with Ethernet over Copper technology is that it is distance limited. That’s why EoC is often called a Metro Ethernet service. You’ll find it readily available in major metropolitan areas, but not farther out in sparsely populated areas. EoC delivery is generally limited to a few miles from the central office where the termination equipment is installed. For higher bandwidths, it’s only a matter of blocks away from the nearest point of presence. Downtown that’s no concern because of the concentration of both users and service provider facilities.

T1, on the other hand, has no distance limitation. It was designed from the beginning to have regenerators placed every mile or so in the line to restore the signal to a perfect wave shape. Longer spans require more engineering and construction effort, so cost goes up. Even so, you can get T1 service from coast to coast if you like. Actually, the T1 line is only carried by copper to the nearest telco central office. From there it rides on a fiber optic network to the central office nearest the far location and is then delivered on copper wiring.

Business bandwidth demands are increasing faster than fiber is being trenched to every business. That doesn’t mean you are stuck with a basic 1.5 Mbps of service when you really need 10 or 20 Mbps. Find out what’s available for your business location and compare prices for Ethernet over Copper vs Bonded T1 services now.

What is Metro E?

Metro E is short for Metro Ethernet, a popular and rapidly expanding network connection service.

Metro E is Ethernet like the protocol you run on your Local Area Network (LAN). But it has been standardized and adapted to also run on a Metropolitan Area Network (MAN). The organization behind this standardization is the MEF or Metro Ethernet Forum. It’s an industry standards organization dedicated to Carrier Ethernet.

Here’s why you should you know about Metro E and seriously consider using it for your business connectivity. Metro Ethernet services are better suited to today’s packet switched networks than the legacy telecom services such as T1. Connectivity is almost trivial. Ethernet is what nearly all networks are running as a protocol. The connection from your service provider is an Ethernet jack. That’s it. No need for special conversion equipment to connect to your switches and routers.

Metro E is supported by a number of incumbent telecom carriers, plus many new competitive service providers that have no connection to legacy telephone services. Nearly all of these new competitors have built their networks on fiber optic lines and IP or MPLS core networks. Metro Ethernet services are easily transported on these networks. The result of all this competition is that Metro E prices are often considerably lower per Mbps than T1, DS3, or OCx bandwidth. It is not uncommon to get 3 Mbps Ethernet service for the same price as 1.5 Mbps T1 and similarly reduced costs at higher bandwidths.

Like other telecom services, Metro Ethernet can be set up to provide point to point connectivity between two business locations. Unlike older technologies, Ethernet Line Service can be configured as a layer 2 connection between two LANs, effectively connecting them to make one larger LAN. Ethernet LAN Service, or ELAN, can do the same thing for multiple locations. It’s a high performance and cost effective way for businesses to tie-together branch offices, factories, headquarters and warehouses. It works just as well for hospitals and their related medical centers in the area.

Another use for Metro E is as an access network connection. Metro E links are used as last mile connections to larger MPLS networks for national or worldwide service. They are also used as dedicated broadband Internet connections for small, medium and large organizations.

Metro E bandwidth tends to be easily scalable. Service at 3 Mbps is a popular entry level bandwidth. Many companies move up to 10 Mbps, a standard LAN speed. Fast Ethernet at 100 Mbps, 1000 Mbps and 10 Gigabit Ethernet are other standard LAN speeds that are also supported by Metro E providers. While these speeds are popular, most providers offer incremental bandwidths between each of these levels. You can order any bandwidth up to the limit of your installed Ethernet port. Start with what you need now and easily upgrade as the need arises.

One thing you should know is that the Metro in Metro E generally means just that. This service is available in most metropolitan areas, but rarely in rural areas. It may be possible to get Ethernet connectivity over T1 lines, called EoDS1. This is a way to extend service to include remote business locations.

If Metro E the right service for your business situation? A quick way to find out is to request a list of Metro E service levels and prices for your business location or locations.

Business Ethernet Vs T1

Small and medium size businesses have been big users of T1 lines in the last few decades. Now there is a new service that is challenging the price and performance of the venerable T1 line. That service is Business Ethernet.

Business Ethernet, also known as Metro Ethernet, Ethernet over Copper and Ethernet over Fiber, offers scalable higher bandwidths, lower cost per Mbps, and increasing availability. It’s called “Business Ethernet” to emphasize that Ethernet isn’t just for LANs and carriers anymore. It’s being rapidly deployed into the SMB arena.

What’s so great about Ethernet? It’s now the universal standard for computer networking. Nearly every desktop PC, router, switch, and cabling infrastructure is designed to support Ethernet. Manufacturing economies of scale ensure that it will be tough, indeed, for another other technology to bee the price/performance of Ethernet.

The proliferation of Ethernet has also caused telecom carriers to rethink their public networks. T1 lines, DS3 bandwidth and OCx services are all based on circuit switched standards established to transport telephone calls. Ethernet is a packet switched technology that can be carried on circuit switched networks. With most networks now packet switched, it only makes sense to make the telecom networks packet switched also.

Packet switching end-to-end offers some interesting possibilities. If the LAN, MAN and WAN all support Ethernet, then you can establish level 2 switching to interconnect multiple business locations. Each location has its own LAN and they are tied together with MAN and WAN Ethernet services. You are extending your company network to encompass the connections between locations as well.

Business Ethernet is a scalable service. That means you can order a range of bandwidths for your connection, also called a port. As long as you stay within the capacity of the port, you can often get bandwidths in small increments including 1 Mbps. That way, you can order just the amount of bandwidth you need today, but can quickly upgrade with a phone call to your provider when business increases and you need more. It’s a great strategy to optimize costs and still get the performance you need right now.

How about the cost comparison with T1? It varies somewhat with location and the amount of competition for your business, but it’s not unusual to get 3 Mbps Ethernet for what you pay now to get a 1.5 Mbps T1 line. A popular service is 10 Mbps Ethernet. That costs about what you were paying for T1 a contract or two ago.

One service of particular note is Ethernet over Copper. This technology uses special terminal equipment installed by the service provider to bond multiple copper pair for your telecom connection. This gives bandwidths up to 50 Mbps over already installed copper wiring so you don’t have to pay for a new fiber installation. T1 lines can also be bonded, but the bandwidth tops out at 10 or 12 Mbps.

Which service is right for your business? They’re both professional grade and highly reliable digital line services. Why not get a set of competitive quotes for T1 vs Business Ethernet and see which will save you the most money?

Two Routes to Virtual Private Networking

Virtual Private Networks or VPNs have become the preferred solution for connecting multiple business locations. What’s caused this migration from private ad-hoc point to point connections is cost and ease of maintenance. By partnering with a managed service provider, you can have the benefits of secure multipoint communication without having to staff up or pay exorbitant monthly line lease fees.

Virtual private networking is in the clouds. The question is which type of cloud to choose? You can implement your VPN solution using the public Internet. You can also choose to go totally private for higher performance.

The Internet based VPN is where the term virtually private got started. Everybody knows that there is little private about the Internet. It connects everyone, everywhere with nothing in the way of assured performance or data security. What the Internet has going for it is economy of scale. The monstrous size and diverse connection methods mean that broadband connections are fairly cheap at the consumer level and reasonably priced for dedicated business access with a service level agreement.

What about those security issues? It seems like any data you put on the network is subject to interception by those who could do you harm. It’s not even safe to connect a PC to the Internet without installing virus blocking software first. Some tests have shown that it takes only a matter of minutes to browse the Web with an unprotected computer to have it become infected by compromised sites or malicious messages.

Yet, we use the Internet every day for such sensitive applications as banking and shopping. The key to keeping your data secure is encryption. Establishing encrypted links through the Internet is called “tunneling.” You create a private tunnel through a public thoroughfare. Your network connection isn’t private, but it is virtually private.

Another form of virtual private networking is provided by privately run network clouds, such as Frame Relay or MPLS. These networks strictly limit access to paying customers. They are also managed to establish only those connections that you specify. Because you are sharing the network cloud with other users, your connections are described as virtually private rather than private line. They offer a high level of security, but may also be encrypted to provide an even higher level of guaranteed privacy.

Private networks offer assured performance, especially in the critical areas of latency and jitter that are important for VoIP telephone and real-time video. The Internet is offered with “best effort” performance, but generally lower costs. How do you choose the right solution for your application? Perhaps the best answer is the obvious one. Get price and performance quotes on competing solutions and recommendations from experts before choosing. That’s all made easy with a quick Virtual Private Networking inquiry at AffordableVPN.com. You’ll get a fast reply and the support you need to make the right VPN decision.