English英语译成Chinese汉语 技术/工程设计 电脑：系统、网络

While nearly every carrier has announced the launch of metro Ethernet services, many of these implementations have fallen short of bringing Ethernet availability to the majority of customers. Current metro fiber builds still leave 80 percent to 90 percent of businesses more than one-half mile from suitable fiber facilities. In addition, cutbacks in capital spending since 2002 have left little money for the new carrier-grade switching hardware that must be deployed to support Ethernet services. The result is that metro Ethernet services have only been deployed at dense telecom building locations, while new locations must be justified on a case-by-case basis.
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