Metro Ethernet

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, ...