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Metro Ethernet by Sam Halabi

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Conclusion

So far, you have read about different technologies that can be used for physical metro connectivity. Ethernet over SONET, RPRs, and Ethernet transport are all viable methods to deploy a metro Ethernet service. Ethernet over SONET presents a viable solution for deploying Ethernet services over an existing installed base. You have seen how virtual concatenation allows better efficiency and bandwidth granularity when mapping Ethernet pipes over SONET/SDH rings. RPR is a packet-ring technology that is attracting much interest from MSOs because it solves many of the restoration and bandwidth inefficiencies that exist in SONET/SDH rings. Ethernet as a transport technology is also a simple and efficient way to deploy Ethernet services; however, ...

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