100G以太网技术和应用

急速增加的带宽需求驱动100G以太网尽快地投入应用,支撑100G以太网接口的关键技术,主要包含物理层通道汇聚技术、多光纤通道及波分复用（WDM）技术。接口部分的高速光器件关键技术需要突破,接口速率提高带来的高带宽需求对包处理和存储、系统交换、背板技术等都提出了新要求。另外,网络需要解决新接口的传输问题,包括新接口传输标准定义和传输技术解决。就目前的成本和需求来看,100G以太网的商用在城域网先行是比较可行的方案。

100G Ethernet Technologies and Applications

The rapidly increasing requirement of bandwidth drives the 100G Ethernet into use as quickly as possible. The key technologies supporting 100G Ethernet interface include the physical layer channel convergence technology, multi-fiber channel and Wavelength Division Multiplexing （WDM） technology. The high speed fiber device needs to be resolved, and the higher bandwidth requirements by higher interface speed demands more packet processing and storage, system switching, and the backplane design. Besides, the network needs to solve the issue of the transport for the new interface, including defining new transport standard and resolving the key transport technologies. Considering current cost and requirements, the commercial service of 100 Gbit/s Ethernet is viable in metropolitan area network.