FastE Fiber as MetroE for Business Ethernet Service

Business bandwidth demands are not only rising, but rising fast. What’s a good solution for fast data transfer? Fast Ethernet is an excellent option. It is readily available and affordable over fiber optic connections nationwide. Let’s take a closer look at how FastE works and how it fits into your bandwidth strategy.

Chances are that you’ve been using Fast Ethernet or FastE for years on your own network. Fast Ethernet is another name for 100 Mbps Ethernet. Standard Ethernet is 10 Mbps, Fast Ethernet is 100 Mbps and Gigabit Ethernet is 1,000 Mbps. Network Interface Cards (NICs) in every device with an Ethernet jack, also called a port, support one or more of these Ethernet speeds. For instance, a 10/100 port supports Ethernet communications at 10 Mbps and also 100 Mbps. A 10/100/1000 port includes 10 Mbps, 100 Mbps and 1000 Gbps.

Nearly every computer, switch, router, modem, firewall, printer, NAS (Network Attached Storage) Disk and other network device supports 10/100 Ethernet. The 10/100/1000 spec is becoming more and more prevalent. In both cases, these devices support Fast Ethernet at 100 Mbps.

So, what doesn’t support Fast Ethernet communication? Many MAN and WAN connections come nowhere close. Clearly computer technology has accelerated faster than communications technology. Actually, support for 100 Mbps communication over long distances has been available for a long time. It’s just that you needed special interfacing and the cost was beyond what most businesses were willing to pay.

High priced proprietary data communications are a legacy of the telephone industry. Nearly every company has ordered a DSL or T1 line to be able to communicate between business locations and connect to the public Internet. The cost of those lines has fallen dramatically in recent years. Even so, the limited bandwidth is starting to become an uncomfortable constraint on even smaller operations.

What’s changed the game recently is the introduction of Carrier Ethernet services. Carrier means that you lease these lines from a service provider, a carrier, rather than stringing the wires yourself. Any connection that goes beyond your property is handled by carriers. At one time the only carrier available was the local telephone company. Deregulation has allowed other service providers, called competitive carriers, to enter the marketplace and compete on technology and price.

Carrier Ethernet is one of those competitive services, although you’ll now find it offered by incumbent as well as competitive carriers. What’s allowed Carrier Ethernet to grow by leaps and bounds is standardization by an industry group called the MEF or Metro Ethernet Forum. Any provider that meets the MEF standards will be compatible with Carrier Ethernet equipment and interconnection with other provider networks.

Fast Ethernet is one of the Carrier Ethernet services you can order in both metropolitan and long haul connections. These are known as MAN or Metropolitan Area Networks and WAN or Wide Area Networks. The difference is really one of scale. The MAN serves a local geographical area that includes a city and surrounding suburbs. The WAN joins cities and may cross state and national borders. International WANs use undersea fiber to link far-flung destinations worldwide.

Metro networks based on Ethernet rather than the older SONET technology are sometimes referred to as MEN or Metro Ethernet Networks. You’ll hear them referred to as MetroE networks. These networks are almost always based on fiber optic rather than copper lines. Increasingly, so are the connections to the network. It’s fiber all the way for FastE and above.

What kind of connection can you make to a MetroE network. One of the most popular is the Fast Ethernet or FastE connection at 100 Mbps. Another popular service level is GigE at 1000 Mbps. What’s just emerging now as a business service level is 10 GigE at 10000 Mbps or 10 Gbps.

Going Ethernet all the way through your network, across the metro or wide area networks and to another LAN at the far end, has some real benefits. The interface is trivially easy. Your handoff from the carrier is a standard fiber or copper Ethernet jack. You’ll also be able to order both point to point connections called E-Line and meshed multi-location connections called E-LAN. Don’t think that you are stuck with only the standard Ethernet speeds either. You can generally get many increments between 10, 100, 1000 and 10000 Mbps.

The biggest advantage of all is cost savings. You’ll pay far less per Mbps for Ethernet than other services. The difference is sometimes half as much for Ethernet as SONET or other telecom services. This easily allows you to afford the bandwidth you really need for today’s communication-intensive applications such as cloud services.

Is your business bandwidth constrained? No need to be stuck at low copper technology speeds when fiber connections to high bandwidth metro and wide area networks are available and affordable. Check now for bandwidth services and prices available for your business location.

WAN Computer Network Connections

Computer networks are often categorized as LAN, MAN and WAN. The LAN is your local network. You design and maintain it to meet your specifications. Or, you hire a contractor to do this. When you need to connect your LAN to another LAN across town or around the world, you enter the realm of the MAN and WAN. Here’s a quick look at what’s available in the way of metro and long haul connections.

The difference between the MAN and the WAN is largely a matter of degree. The MAN is a Metropolitan Area Network. As the name suggests, MAN services are limited to a particular city or city and suburbs. It’s the right connectivity for companies that have multiple offices in the same city, a main facility and a remote data center across town, a factory or warehouse in an industrial park plus some satellite offices. Hospitals and their associated medical centers are good candidates for MAN service, especially higher bandwidths for medical image transmission.

A difference between the LAN and MAN is that you own your LAN and buy services from the MAN. A Metropolitan Area Network is typically privately owned and offers services to numerous clients. The network operator manages bandwidth and security to ensure that every customer feels like they have the network all to themselves.

Most MANs are organized as SONET rings that encircle the metropolitan area. A SONET ring is actually two fibers with the same traffic running in opposite directions. One is the primary service and the other is the backup. This is done to ensure reliability. If one fiber or its associated equipment experiences a failure, service is automatically switched to the other fiber in the ring within 50 milliseconds. SONET has designated service levels at OC-3 (155 Mbps), OC-12 (622 Mbps), OC-24 (1.24 Gbps), OC-48 (2.49 Gbps), OC-192 (9.95 Gbps) or OC-768 (39.8 Gbps). You may also be able to get DS3 service multiplexed onto an OC-3 service for transport across town.

Newer metro networks may offer Carrier Ethernet instead of SONET. Ethernet is highly scalable from as low as 1 Mbps on up through 10 Gigabit Ethernet. Popular MAN service levels are 10 Mbps, 100 Mbps, and 1,000 Mbps or GigE. An advantage of Ethernet is that changes in service level can be accomplished faster than with traditional SONET. You can also get layer 2 Ethernet connectivity, such as E-Line and E-LAN, to connect your LANs at other locations into one large bridged network. The MAN itself may have an IP core or be running as Ethernet over SONET to use existing facilities.

Think of the WAN as a very large MAN and you probably won’t be far off. WAN networks may also have SONET rings or IP core networks. They are certainly fiber optic based and often with so many strands that you can lease wavelengths or even dark fibers. Many WAN networks are structured as MPLS or Multi-Protocol Label Switching networks for flexibility. A MPLS network has inherent security due to a propriety routing technology that is not IP. MPLS networks can transport any protocol by encapsulating the packets within the switching labels.

WAN networks may have a regional, national or international footprint. Some are designed with low latency paths that are especially important for financial trading. WAN networks may also peer with other networks of similar size to share traffic. The newest wrinkle is the Ethernet Exchange that exchanges Ethernet traffic without having to first convert it to SONET.

How do you connect to a WAN network? Often you can pick the connection that is both readily available and lowest in cost for your particular application. These range from T1 lines to Ethernet over Copper, Ethernet over Fiber, and SONET last mile connections. In some cases, fixed wireless access is also available. The mix of copper, fiber and wireless access should accommodate just about any need.

Do you have a need to connect your LAN to another facility across town, or to locations in other states or countries? Compare prices and availability of various MAN and WAN connectivity options to meet your requirements.