"Ethernet in the First Mile" (EFM) is an upcoming standard currently being drafted by the 802.3ah task force in the IEEE organization. One of the tracks in the standard deals with Ethernet over Passive Optical Network (EPON), a centralized point-to-

引入新的如数据套接层、全站式模版及标签、基于XML的XCML标准（包括动态配置计划、语言包、模板机制等）、频道分目录结构等更为强大而高效的互动机制及基础的同时，也将带来可能的新的BUG和不稳定因素-And basic interactive mechanisms, such as the introduction of a new data socket layer, total station and label templates, XML-based standard XCML (incl