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Written by: - Sep 3, 2010 Metro Ethernet is the closest thing to plugging straight into the carriers network, through the use of fiber optics. Fiber optics are an advantage over traditional copper connections associated with serial interfaces because fiber is able to transmit higher bandwidth over longer distances without signal degradation. This is because single-mode fiber that is used overcomes many of the drawbacks of copper medium, such as electro-magnetic interference, security, and distance. Fiber optics are more expensive, however, not only for the cable, but also for the equipment interfaces. That is why metro ethernet over fiber is not everywhere yet. It takes time to build out the network, but the footprint is growing. What about ethernet over copper (oec)? If metro ethernet runs over fiber optic lines, then why would I would it also be availabe over copper? Since fiber optics don't yet run up to every business, but there are current existing copper lines. This enables an ethernet connection. Is there a drawback? Yes, speeds won't be as high. Ethernet over copper may only be up to 10 Mbps. Ethernet over serial may have a higher rate, but not the same as fiber optics. Some of the metro ethernet service providers that also offer ethernet over copper are XO, Mosaic Networks, and Quest. |