Ethernet Over Copper Companies Expand Services

Ethernet over Copper (EoC) has been the David to the T1 Goliath. That’s changing fast. While T1 lines won’t be knocked out anytime soon, the expansion of EoC by Ethernet over Copper companies is bringing more options to more service areas every day.

An example is the aggressive buildout by Integra Telecom into 120 telephone company central offices (COs) serving more than 400,000 businesses. Why colocate in telco offices instead of just building your own points of presence?

The answer has to do with the copper. Copper is gold in the telecom world. He who has the gold, and to some extent makes the rules, is by law the Incumbent Local Exchange Carriers (ILECs), also known as the local telephone companies. All that twisted pair copper in the ground and flying overhead was put there by the ILECs for their own use. Under deregulation, they lease it out to competing carriers, like Integra, who install their own equipment to access that copper within the ILEC COs.

It’s only the last mile that Integra and other carriers lease. The rest of the signal path is through their own proprietary networks. By using that last mile of twisted pair copper wires, EoC providers can provision anywhere from 2 to 45 Mbps of Carrier Ethernet bandwidth and services. That’s faster than even bonded T1 lines can go and competes with low end fiber optic services. That makes connectivity available in the two-thirds of business buildings that aren’t yet lit for fiber.

So, what can you expect from Ethernet over Copper? First of all, it’s Ethernet. This is the same protocol that runs on your network. When adapted to run on telecom services, it’s called Carrier Ethernet. This makes the interface to your network as simple as plugging into a standard RJ-45 Ethernet connector installed by the carrier.

Even more important, your traffic stays on Ethernet as it traverses the path between company locations. The Metro Ethernet Forum (MEF), an industry standards group, has created several Carrier Ethernet services that support business connections. The first is Ethernet Private Line (EPL). This is similar to the point to point T1 service you may have now. It connects two locations with a Ethernet Virtual Circuit (EVC) for the exclusive use of your traffic.

One difference is that you have a wider range of bandwidth choices available. The other very noticeable difference is that Ethernet services tends to be considerably more cost effective than T1. You can typically get 3 Mbps EoC for the same price as 1.5 Mbps T1. As you increase bandwidth, the cost savings get even more attractive.

A related service is Ethernet Virtual Private Line (EVPL). This is a point to multipoint connection. You could use EVPL to establish a star network with your headquarters location in the center, connecting many other business locations.

Another service gaining popularity is E-LAN or Ethernet LAN service. This is an Ethernet based cloud networking service that connects multiple locations in a meshed arrangement. Because it is Ethernet, you can use it as a bridged network connection to join the LANs at all of your diverse business locations so that they operate as one very large company network.

Ethernet over Copper offers you an expanded range of services than what you have now with an expanded bandwidth selection that is easily scalable and less costly than traditional telecom services. The one question is whether you can get EoC yet? With the rapid deployment by many carriers, the answer is probably YES. Want to find out? Get availability and pricing for Ethernet over Copper services suitable for your business locations.

1 Gbps Point to Point Ethernet Connection

With WAN bandwidth requirements increasing as businesses move to the cloud and become more involved with bandwidth intensive activities such as video and big data, it is not uncommon anymore to be requesting 1,000 Mbps connections. A popular match for this requirement is a 1 Gbps Ethernet or GigE point to point connection. Let’s take a look at what’s involved and your options for Gigabit Ethernet service.

Ethernet is the standard protocol of the LAN. Most network interfaces run at 10 Mbps, 100 Mbps, 1000 Mbps or 10 Gbps. Many standard network devices support multiple speeds, typically 10/100/1000 Mbps. It is only logical to want to extend the LAN through the WAN and to another LAN somewhere else. The way to avoid speed bumps that cause network congestion while avoiding over-provisioning and overpaying for WAN bandwidth is to match your LAN to your WAN. That means standard LAN speeds and protocol.

Fortunately, this has all been figured out by the Metro Ethernet Forum (MEF), an industry group that sets standards for interoperability among vendors. They have created the standards necessary to take LAN Ethernet and transport it through WAN connections. In the WAN, this is called Carrier Ethernet.

It all starts and ends with a User Network Interface or UNI. This is a “port” provided by the carrier or service provider and installed at the user location or locations. The UNI is designed to run at standard LAN operating speeds of 10 Mbps, 100 Mbps, 1 Gbps or 10 Gbps. That doesn’t mean that you are limited to one of those service speeds. The installed UNI defines the upper limit to the bandwidth it will support. The carrier rate limits the actual speed of the service to match the bandwidth you are paying for. That could be 20 Mbps, 75 Mbps, 450 Mbps or some other value. There are typically many increments to choose from so you only have to pay for the bandwidth you really need.

There is a big advantage to this arrangement. Not only are you not stuck with a service that is too big or too small for your needs, but all the hardware is set up to support the port speed of the UNI. The rate limiting is a software function that can be changed quickly by the service provider with a few keystrokes into their system. That means that you can call up and request a bandwidth increase at any time and have it available in days, maybe hours of your request. The carrier will enter the change and adjust your billing to match. Compare that to traditional telecom service that require truck rolls to install new equipment and perhaps pull new wiring. If your UNI supports 1 Gbps, you won’t need any hardware changes until you want to go above that speed.

The actual transportation takes place on an Ethernet Virtual Connection or EVC. The EVC provides point to point connectivity between designated UNIs and prevents data transfer between sites that aren’t part of the same EVC. The popular Ethernet point to point service is known as EPL or Ethernet Private Line. It is a direct replacement for TDM private lines.

Another interesting feature of Ethernet UNIs is that they can handle multiple EVCs. That may seem a little strange compared to typical telecom UNIs that connect physical wires and transport a single Point to Point (PTP) line service. Each EVC can be considered a separate private line. Multiple EVCs delivered over a single UNI is called EVPL or Ethernet Virtual Private Line service. One popular topology is a hub and spoke arrangement where a headquarters location is connected to multiple branch offices using EVPL. Only a single physical UNI is needed at HQ to support all the private line spoke connections.

Is your operation ready for higher bandwidth WAN service? Find out how little it now costs to support 1 Gbps Point to Point Ethernet Connections using EPL and EVPL.

New Carrier Ethernet Services Offered by CE 2.0

Carrier Ethernet has come out of nowhere over the last few years to be the copper and fiber connection service of choice. There are a lot of good reasons why companies are switching to Ethernet bandwidth service in droves. Now they’ll have even more choices since the Metro Ethernet Forum (MEF) has introduced Carrier Ethernet 2.0.

Did you know that there was a Carrier Ethernet 1.0? That’s the moniker of the original set of standards that defined Carrier Ethernet. It wasn’t called that until these new services were introduced and the MEF needed a term to describe the existing standards. Not to worry. Both CE 1.0 and CE 2.0 are compatible. What Carrier Ethernet 2.0 does is expand the set of defined standardized Ethernet services from 3 to 8.

What are these new Ethernet services and what can they do for your company? Let’s take a look at what we have now. The role of the MEF has been to extend the LAN Ethernet standard that has become almost universal for interconnecting computer systems in-house so that it will work for Metropolitan Area Networks (MAN) and Wide Area Networks (WAN). Part of getting Ethernet on telecom carrier networks has been to standardize service offerings so that they will be similar and compatible from network to network. That’s led to three popular standardized Ethernet services. These are E-Line, E-LAN and E-Tree.

Ethernet Line (E-Line) service is the familiar point to point dedicated private line. Only your traffic exists on this line service and it only connects two locations. Companies often buy private lines to connect a remote data center, branch office, factory or warehouse back to headquarters. T1 lines are popular on the low end (1.5 Mbps), DS3 for modest bandwidths of 45 Mbps, and SONET fiber optic services for higher bandwidth requirements. Ethernet Line Service does all of this as well or better. E-Line is also used for dedicated Ethernet Internet Access connections.

E-Line offers several big advantages over legacy telecom private line services. First, it is Ethernet. That means it is inherently compatible with your existing local network. Simply connect your network edge router to the Ethernet connection installed by your service provider and you are in business. There is no need to worry about any fancy protocol conversions to make things work. E-Line bandwidths are far more scalable than other solutions. You can get just about any bandwidth level you desire, up to the maximum capacity of the installed port. You only need to make a hardware change if you need a faster port. Finally, Ethernet is less costly than T-Carrier or SONET on a per Mbps basis. It is not uncommon to get twice the bandwidth for the same cost as you are paying for a legacy service.

Ethernet LAN (E-LAN) service is a multipoint service designed to connect multiple business locations. This is a mesh network, similar to your LAN. All locations can communicate with each other easily. Ethernet LAN is just that. It creates a bridged connection among three or more geographically dispersed LANs.

Ethernet Tree (E-Tree) service is a hub and spoke network like the one many companies built themselves to connect a HQ location to many branch offices or franchises. Tree structures are also used for broadcast distribution. All locations communicate with the hub, but not each other. Traffic between leaves in the tree network are managed by the central hub.

E-Line, E-LAN and E-Tree are the three standardized Carrier Ethernet services of CE 1.0. The service types for each of these are doubled in CE 2.0 to include private and virtual private variants.

Ethernet Access (E-Access) is something new with two service types created for CE 2.0. This is something for wholesale access services, where a larger network sells Carrier Ethernet services to a smaller network through an Ethernet Network to Network Interface (ENNI). The two services are Access EPL (Ethernet Private Line) and Access EVPL (Ethernet Virtual Private Line). One of the additional features of CE 2.0 is the addition of a standardized ENNI so that networks can connect worldwide and offer Carrier Ethernet with an enormous service footprint.

Is your company looking at expanded or alternative interconnection services? This would be a good time to get a fresh set of Carrier Ethernet quotes for one or more business locations. The level of competition among Ethernet carriers is intense, with more services at lower prices being provided in nearly all markets compared to even a year ago.

Extending Ethernet over MPLS Networks

Ethernet started out as a local area network protocol, but is quickly becoming the metropolitan area network protocol of choice. It offers easy interfacing to existing wired and wireless business networks, rapid bandwidth scaling without equipment changes, and a lower cost structure than traditional telecom services. If Ethernet is so great for the LAN and MAN, how about Ethernet for the WAN?

Ethernet WAN is enjoying a rising popularity, especially among companies with multiple business sites located across the United States and across international borders. You can get dedicated point to point wired Ethernet connections between any two locations, but a competing methodology that is gaining steam is Ethernet over MPLS.

Why use an MPLS network to transport your Ethernet traffic? The first reason is that MPLS networks are already in place and going where you want to send your traffic. Sure, you can custom engineer a dedicated private line service, but why re-invent the wheel? Ethernet is easily transported over MPLS networks using Pseudowire encapsulation that emulates the wireline it competes with. Which do you think is going to be less expensive? Paying for a custom point to point wireline connection or being one stream of traffic on a large MPLS network?

The way it tends to work out is that short haul Ethernet links have the cost advantage when implemented as dedicated lines. This is especially true if you are nowhere near an MPLS carrier node. Once you start looking at coast to coast transport or a situation where you want multiple Ethernet LANs connected in a transparent mesh network, MPLS networks gain the advantage. MPLS also has the edge when you want to cross international borders to include foreign sites on your corporate network.

Carriers may be muddying the water even further by offering Ethernet line services that consist of copper or fiber Ethernet access connections to their MPLS network core, where the long haul Ethernet transport really takes place.

There are several types of Ethernet services that are really popular right now. One is E-Line or Ethernet Private Line service. This is a standardized service specified by the MEF (Metro Ethernet Forum). It gives you a Carrier Ethernet connection that bridges two LANs. A variation is EVPL or Ethernet Virtual Private LIne. What EVPL does is let you use a single physical Ethernet port to connect to multiple Ethernet private lines going to out to geographically diverse locations. This is something you could use to replace a star network built on independent wireline connections to those same remote locations.

Another popular service is E-LAN or Ethernet LAN service, also called VPLS or Virtual Private LAN Service when implemented on an IP/MPLS network. While Ethernet Line Service replaces dedicated point to point telecom lines, Ethernet LAN is a meshed network service that interconnects multiple locations on an any-to-any basis. With VPLS, you bridge your multiple LANs so that they act as one giant LAN network. That’s true even if you have a hundred or thousand sites in the U.S. and and equal number spread out over the globe.

What carrier can offer this level of MPLS networking? Actually, there are several to choose from. If one can’t serve all your sites, multiple carriers can share traffic through a E-NNI or Ethernet Network to Network Interface to reach all locations with VPLS or E-Line connections. If you need this type of connectivity, you may be surprised by how affordable it has become recently. Get Ethernet over MPLS service prices now and see how far your network can really reach.

Metro Ethernet vs MPLS Networking

In addition to dedicated Internet access, many companies also need point to point private lines and/or multipoint network connections. The classic way to accomplish this has been to lease private lines to create your own wide area network setup. There are two other methods available that can give you the same results for considerably less cost.

Metro Ethernet service has been seen as a way to get point to point connections in town at a lower cost than leasing dedicated line services, such as DS3 or OC3. This service is called E-Line or Ethernet Line. It’s is standardized by the MEF (Metro Ethernet Forum) so you can compare E-Line services from multiple vendors and know that you are getting the same product.

What’s the difference between ordering an E-Line connection at 50 Mbps versus a DS3 dedicated line at 45 Mbps? When you order a dedicated line, you can envision having a pair of wires going from your headquarters, through a cross-connect at the telco central office and then out to your branch office. That’s probably true for a T1 line provisioned on two twisted copper pair. When you get into DS3 and higher bandwidths, your connection will probably be carried via SONET fiber optic service using an add/drop multiplexer. Along the way, your signal will be traveling with many other who share the same fiber strand.

Here’s what’s important: Unless you actually go out and construct or lease the copper or fiber transmission medium, you are using a shared or multi-tenant service. It’s true with Metro Ethernet and MPLS Networks. It’s also true with dedicated line services. The difference is that MPLS and Metro Ethernet are packet switched networks while T-Carrier and SONET services are circuit switched. With circuit switching, the circuit is used only for your traffic on a single path that is “nailed up” for the time you hold the lease. With packet switching, other traffic can share common paths through the network. That does two things. It lowers the price of the service and it makes some additional services possible.

Metro Ethernet has both an Ethernet Private Line and Ethernet Virtual Private Line service available. The virtualization means that you only need to install one Carrier Ethernet port to have connections with two or more locations. The actual physical line is shared among your own traffic. You may have ten or more branch offices, retail stores or other locations in town. With EVPL you can have point to point connections to many locations coming in through one UNI (User Network Interface).

Here’s another service you can get with Metro Ethernet. It’s called E-LAN or Ethernet LAN service. This is a meshed network that lets many locations all communicate without going through a single point. E-LAN is popular for interconnecting a company’s many independent LANs in the same geographical area. This can be done at the layer 2 level so that the entire network looks like one giant bridged network.

Interconnecting multiple locations is also the domain of MPLS or Multi-Protocol Label Switching networks. Many of these have regional, national or even international service footprints so that all of your far flung locations can interact on the same network. MPLS may be the solution of choice for covering geographical areas larger than a single city and its suburbs. MPLS can also be used to create point to point connections for only two locations. When those locations are located on opposite coasts or in different countries, MPLS can be a better deal than Ethernet Line service or point to point dedicated line services.

Since Ethernet and MPLS services overlap to some extent, what criteria do you use to make a choice? I’d recommend getting price quotes for these, plus dedicated lines, and comparing the total lease cost for the same bandwidth and other requirements. You can get networking bandwidth quotes from multiple service providers quickly and easily using the GeoQuote tool. In fact, many line services to 1 Gbps quote automatically online.

Ethernet over Copper Connects Nationwide

Ethernet over Copper (EoC) has quickly made a name for itself as a last mile access connection for dedicated Internet, MPLS networking, and linking two or more company LANs. The flexibility, ease of interface, and cost savings make this a service in demand. What’s held it back to date is lack of availability. Well, that’s about to change.

MegaPath, one of the country’s major competitive carriers, is moving in with Telx, a major network interconnection provider. What does that mean? It means that your Ethernet over Copper connection can go a lot farther than it used to.

MegaPath has been on a major construction effort to roll out EoC equipment to over 680 central offices within the next year. The central office is key because this is where the subscriber copper loops terminate. MegaPath used specialized G.HSDL technology with up to 8 bonded copper pair to deliver line speeds to 100 and even 400 Mbps in selected area. Their standard symmetrical speeds are 2, 3, 5, 8, 10, 12, 15, and 20 Mbps. Both layer 2 and layer 3 services are offered along with QoS/CoS to support business data and real-time voice and video simultaneously.

For its part, Telx operates 15 data centers with direct access to over 950 customers who have chosen to colocate within the Telx facilities. These include major telecom carriers, Internet service providers, content producers and delivery networks and cloud service providers. Telx is a pioneer in Ethernet Exchange, a way for carriers to exchange Ethernet traffic without having to first convert to another protocol like SONET. The E-NNI or Ethernet Network to Network Interface benefits each carrier who participates because now they can directly access customers on other carriers and vice-versa.

Ethernet over Copper along with Ethernet over Fiber form the basis of Carrier Ethernet. This is the familiar Ethernet protocol that runs on your LAN adapted for use on telecommunication networks. The Metro Ethernet Forum (MEF) has standardized a number of Carrier Ethernet standards so that they are compatible across network boundaries. These include EPL, EVPL, and ELAN.

EPL stands for Ethernet Private Line. This is equivalent to the point to point private line services familiar with T-Carrier and SONET services. EVPL is Ethernet Virtual Private Line. This is very similar to EPL. The virtual designation means that you can have a number of EPL services running to a single physical Ethernet port. This is particularly useful for companies that want to run private lines from a single headquarters location out to multiple branch locations. Together, EPL and EVPL form what is known as E-Line or Ethernet Line service.

ELAN stands for Ethernet LAN Service. You may also see this written as E-LAN. What differentiates E-LAN from E-Line is that E-LAN is a many to many or mesh network service. You can use it to tie together multiple business locations so that any location can communicate with any other.

Have you been interested in Ethernet over Copper services but concerned that they may not be available to support your particular location or your many locations nationwide? This is a rapidly changing market, with more service being rolled out almost daily. If you haven’t checked lately, you may be pleasantly surprised at how much connectivity is available and how much bandwidth your can get for your telecom budget. Check pricing right now, if you like. Ethernet over Copper prices from 1 to 100 Mbps are available instantly online. Other services for business locations will be promptly quoted by a Telarus bandwidth expert, upon request.

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.

EtherSphere Spans The World With Ethernet

Global Crossing is circling the globe with standards-based Carrier Ethernet services under the umbrella of its EtherSphere solutions portfolio. For multinational corporations and other companies with an international reach, this offers one-stop shopping for a network that unites geographically diverse business locations.

EtherSphere offers a number of Ethernet services that have been established as standards by the MEF (Metro Ethernet Forum). These include Point to Point Ethernet Private Line (EPL) or E-Line and multiple private line or Ethernet Virtual Private Line (EVPL), Point to Multipoint or E-Tree, and Multipoint to Multipoint Ethernet Private LAN or VPLS (Virtual Private LAN Service) E-LAN.

This suite of standard Ethernet services accommodates whatever connectivity is needed to interconnect multiple locations. All connections are made using EtherSphere’s Smart Demarcation Network Interface Device (NID). This allows the network to monitor performance end to end, perform traffic management and offer end to end SLAs (Service Level Agreements). Customers have administrative access through the Global Crossing uCommand online portal.

The Smart Demarcation NID supports 10 Mbps, 100 Mbps and 1000 Mbps Ethernet port interfaces. Bandwidth is highly scalable and can be ordered in committed data rates from 1 to 10 Mbps in 1 Mbps increments, 10 to 100 Mbps in 5 Mbps increments, 100 to 1000 Mbps in 25 Mbps increments, 1000 to 2000 Mbps in 100 Mbps increments and greater than 2 Gbps upon request.

There are six classes of services supported on the network that are identified as premium, premium plus, enhanced and enhanced plus, and basic and basic plus. The service level agreements can be POP to POP or end to end with metrics that include frame delivery, frame delay, and delay variation by class of service, plus installation and mean time to repair.

One beauty of Carrier Ethernet is the ability to provide layer 2 switched Ethernet service over wide area networks, including international destinations. VPLS can interconnect data centers and remote locations in a bridged LAN arrangement that includes all of a company’s offices. With simple Ethernet interfaces at every location, connections between LANs are greatly simplified compared to creating worldwide networks using traditional telecom services.

Global Crossing is expanding this popular EtherSphere service to include more than 40 new locations in the United States, Europe and China by the end of 2011. This will expand the carrier and enterprise offers now available in North America, Europe, the United Kingdom, Asia and Latin America served by 150 locations served by multiservice edge routers. The expansion in China will deploy EtherSphere Layer 2 VPLS to business centers in China through Global Crossing’s extended reach partner, CITIC Telecom CPC.

Is your company multinational in structure or do you simply need to do business worldwide? If so, perhaps a more comprehensive network solution that links all of your business locations through an Ethernet WAN solution can reduce costs and improve performance. Get International Carrier Ethernet pricing and availability to compare with what you have now.

New Data Center Networking Solutions

Data management and storage requirements for enterprise level organizations continue to increase. In addition, a majority of enterprise IT departments now replicate data between data centers. This has created a need for new and more cost effective bandwidth services, especially at 10 Gbps and above. Level 3 is addressing these needs with an enhancement of its existing data center networking solutions.

What’s different about data center connectivity compared to other business requirements? Data centers are far more concentrated than other computing resources. This is especially true for storage, a prime driver for offsite data centers in the first place. What this does is increase the need for high bandwidth connections between the concentration of storage and the concentration of users. It also influences the connectivity required.

What you need for last mile connections to an MPLS network or private lines to link business locations can usually be handled by T-Carrier, SONET/SDH or Carrier Ethernet line services. Data centers need higher bandwidth connections, but may also need special SAN protocols including Fibre Channel, Infiniband, ESCON and FICON.

SAN stands for Storage Area Networks. These are large collections of disk drives that connect directly to the application servers. SAN networks have traditionally been very localized, with the disk arrays physically near the servers. But what do you do when you need to duplicate data between data centers?

Many companies operate two or more data centers, sometimes a half-dozen or more. Some of this is due to mergers and acquisitions of formerly independent organizations with their own IT infrastructures. Much is driven by a need for disaster protection and recovery. When your business is critically dependent on its electronic data, normal backup processes aren’t adequate. You can have multiple copies of your files locked up locally and still be put out of business by a fire, tornado, flood, earthquake, hurricane or other disaster that destroys whole buildings and everything in them.

This means that you want to have copies of your critical data dispersed geographically. Establishing independent data centers in two or more cities far apart means than a disaster that takes out one center probably won’t knock out everything. There’s also an advantage to content providers in having the servers and data content located close to the customers. Latency is reduced and performance is increased due to less network congestion. A challenge is how to make sure the data is replicated exactly at all locations.

This is where long distance SAN networking comes into play. You need high levels of bandwidth but also support for SAN protocols to keep everything synchronized. FCoE or Fiber Channel over Ethernet is a popular protocol for transmitting Fibre Channel frames over 10 Gbps Ethernet connections. WDM or Wavelength Division Multiplexing avoids having to layer protocols to connect facilities. Each wavelength in a fiber optic link can be assigned its own protocol, regardless of what is running on other wavelengths in the same beam.

Level 3 Communications has expanded its data center networking portfolio to include SAN fiber channel protocol, dark fiber and managed fiber solutions. This is in addition to dedicated bandwidth services from 1 Gbps to more than 40 Gbps, including 10 Gbps EVPL or Ethernet Virtual Private Line service. They offer low latency route guarantees and an international service footprint, including a presence at key public exchange facilities.

Are you concerned with managing multiple high performance data centers? Would you like to have more options and/or better pricing for all your telecom connectivity needs? If so, get complementary consulting help and pricing and availability for high bandwidth networking services.



Note: Photo of data center servers courtesy of WikimediaCommons

Your Point to Point Ethernet Connection

Any company with two or more locations that need to be interconnected to share data have a need for point to point line service. The traditional solution is a T1 data line with 1.5 Mbps of bandwidth. Today, you have more options.

If it’s just a matter of increasing bandwidth on a T1 service that works just fine, you do have the option to bind in additional T1 lines. An extra T1 gives you 3 Mbps, 4 T1s are good for 6 Mbps, and 7 T1’s will get you up to 10 Mbps. Outside of metro areas, this may be your best bet. But if you are located within a large metropolitan area, point to point Ethernet might be a better choice.

Why? It’s a matter of cost and service options. Bonding T1 lines incrementally increases bandwidth and cost by about the same amount. Ethernet, however, is generally lower on a per Mbps basis, especially as bandwidth increases. That 10 Mbps connection might cost you half or less than you’ll pay for bonded T1.

Ethernet sounds like a perfect fit for linking two LANs, and it is. Your data starts off as Ethernet, continues through the WAN service as Ethernet, and is back on your far end LAN as Ethernet. Not only is that inherently efficient, but you also get the option to make that connection at layer 2 rather than layer 3. In short, you can treat your two locations as being on the same bridged Ethernet LAN rather than completely separate networks that happen to have a telecom link.

What you are looking for is called E-Line service. It’s a direct replacement for TDM private lines, such as T1. It is implemented as a single EVC or Ethernet Virtual Connection between two UNIs or User Network Interfaces. Think of it is a very long Ethernet cable between Location A and Location B.

While E-Line service is the most popular Ethernet bandwidth connection, there are some other Ethernet services that you may also want to know about. One is EVPL or Ethernet Virtual Private Line. Why would you want a virtual rather than an actual Ethernet line? The difference is that multiple Ethernet services can be carried on the EVPL. You’ll have one physical connection to your building, but you may be bringing in a dozen or so Ethernet virtual private lines.

If you have multiple locations that all want to communicate with each other, you need more of a meshed network that simple point to point lines. That’s where E-LAN or Ethernet LAN service shines. Each location connects to the “cloud” network via an Ethernet line service. All locations can then communicate as if they were on the same LAN.

A third service is called E-Tree. This is a point to multipoint connection that is useful for content delivery to multiple users. The users have no interaction with each other and simply get their content from the “root” organization.

Is one or more of these Ethernet services right for your organization? Why not price out the options and then decide. Get your inquiry in now and see how much you can save over your other networking choices.

EVPL Ethernet Virtual Private Line Service

You are probably familiar with private line services for business. A private line is one where you have exclusive use. An analog telephone line is a private line. So is a T1 voice or data line. Now there is something new is the mix. It’s the VPL or Virtual Private Line.

Telephone lines weren’t always private. Remember the party line? Decades ago, several houses in a neighborhood would be connected to the same physical line. If you picked up your phone to make a call, you might hear one of your neighbors already engaged in conversation. In the pre-Twitter days, listening-in on other phone conversations was often a form of amusement.

That lack of privacy is long gone for telephones. But shared digital services exist today, especially with public access Internet. No, you can’t casually eavesdrop on your neighbors email or Web activities, but if some of the users start heavily downloading large files, your Internet service will slow down. There are also tools available that allow anyone to monitor everything going over a particular WiFi hotspot. The whole Internet is one big party line in the sense that you can’t be sure who’s monitoring the traffic and what they might be doing with information they skim.

It’s the security risk and the lack of consistent bandwidth that have driven businesses to private line service. T1 lines are private lines. They offer the advantages of rock solid 1.5 Mbps bandwidth and exclusive use of the line. The disadvantage is that you pay for that line even when traffic is light or non-existant.

Ethernet also offers a private line service called EPL. It works like T1 in that it is a physical line connection between you and your service provider. The difference is that the protocol is Ethernet and you can often get scalable bandwidth, typically 10 Mbps.

If you have a private line service, why would you want a virtual private line service? For one reason, you may want private lines running from your headquarters out to a number of branch offices. With dedicate private lines, you need separate physical circuits for each of these lines. You pay for the exclusive full time use of each circuit and there may or may not be enough pairs of wire into your headquarters office to give you the number of private lines you desire.

Ethernet Virtual Private Line service, EVPL, uses a single physical copper or fiber circuit to connect you to the service provider. Within that circuit are multiple EVCs or Ethernet Virtual Connection. This is not a party line arrangement. Each EVC carries its own traffic to and from another location without any cross-talk or interference from other EVCs.

The power of EVPL is not only that you only need one network interface at each of your facilities, including headquarters, but that those virtual connections can be extended to other cities or states over the provider’s MPLS core network. The MPLS is a cloud network that carries traffic for many users, but the integrity of each user’s virtual circuit is maintained from point to point regardless of distance.

EVPL is also a switched layer 2 service, which means that you can use it to extend your LAN network across town or across the country. It’s the simplest way to bridge multiple LANs when they are not located in the same facility.

Can EVPL service be of benefit for your organization? Find out with a quick inquiry about Ethernet Virtual Private Line service. Our expert Telarus consultants will be happy to get you price comparisons and service level agreements so you can make the best decision for your company.