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.

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.

100 Mbps Ethernet over Copper Rivals Fiber

Ethernet over Copper is rapidly taking over from T1 lines as the bandwidth service of choice for low to medium speed applications. Multiple copper pair can support bandwidths of 20 Mbps up to 50 Mbps in some locations. Beyond that, it’s assumed that fiber optic service has to be brought in. Not any more. Now there’s 100 Mbps Ethernet over Copper available from Paetec.

Twisted pair copper has a legacy of connecting central offices to telephone sets for over a century. The enormous installed base of copper connections makes this an extremely valuable resource even in the era of digital communications and fiber optic cabling. The problem is that unshielded small gauge copper wire loops were engineered to carry low frequency audio signals up to several miles. It’s a tribute to clever engineering that these same pairs can be repurposed to carry high frequency digital signals.

Paetec is applying Ethernet over bonded Copper Products from Overture Networks as the technology behind this amazing bandwidth fete. Overture acquired the technology when it purchased Hatteras Networks earlier this year. Their HN product series can deliver up to 15 Mbps per copper pair depending on distance. By bonding up to 32 pairs, bandwidths approaching 500 Mbps can be achieved. Typically, the equipment is used to support user bandwidths from 10 to 100 Mbps.

Speeds in the hundreds of Mbps, even up to 1 Gbps, over copper have been announced in experimental setups. Now, you can order 100 Mbps Ethernet over Copper as a standard bandwidth service. This is particularly significant in that 100 Mbps “Fast” Ethernet is a standard LAN speed. By extending this into the MAN and WAN, the bandwidth speed bump experienced when exiting the office is eliminated. Two locations can share files as if they were side by side in the same building.

Ethernet over Copper technology has been gaining in popularity as the need for higher speed network connections increases. Business automation, medical file transfers, video transport and the move to cloud based services is rendering low bandwidth connections obsolete. T1 line used to be considered a broadband service at 1.5 Mbps. Now many companies need at least 10 Mbps to get their jobs done. So, too, wireless backhaul was fine using T1 lines as long as the traffic was voice and low speed data. Since 3G and 4G have become so popular, slow backhaul is no longer acceptable.

Why not just switch to fiber optic service with it’s unlimited bandwidth? Someday that will be the case. Right now, ready fiber access is available in core business districts and colocation centers. Many metropolitan buildings remain unlit for fiber. Small and medium size towns are relatively fiber-poor. Yes, there is a lot of fiber construction underway. But why pay a king’s ransom and wait six months to a year when there are multi-pair copper cables already run into your building? By employing Ethernet over Copper technology to take full advantage of that existing wiring, you can have higher bandwidths now without enormous construction costs.

Can high speed copper-based bandwidth be the solution that works best for your company? Find out by getting availability and pricing for 100 Mbps Fast Ethernet over Copper service for your business locations.