Don't bet against Carrier Ethernet

摘要

Standardized more than 25 years ago, Ethernet has enjoyed unprecedented growth and dominance within corporate networks worldwide. Over the last decade, speeds have increased exponentially from 10 Mbits/sec to 10 Gbits/sec. Ethernet has recently reached beyond the enterprise with successful and profitable deployments in domestic and international access and metro networks. Two primary factors have contributed to this trend. First, interoperable, cost-effective optical transceivers, at speeds of 100 Mbits/sec and higher, are available from multiple vendors. These transceivers have evolved from bulky, fixed pin-in-hole components to small-form-factor, pluggable modules that support transmission distances useful in today's metro networks.