中国电信EPON设备技术要求(V2.1)中国电信集团公司2008年6月目次前言.................................................................................................................................................................IV1范围.......................................................................................................................................................................12规范性引用文件...................................................................................................................................................13缩略语...................................................................................................................................................................14参考模型...............................................................................................................................................................45业务类型和设备类型...........................................................................................................................................45.1业务类型............................................................................................................................................................45.2设备类型............................................................................................................................................................46EPON协议要求....................................................................................................................................................66.1协议栈................................................................................................................................................................66.2PMD子层..........................................................................................................................................................76.3RS子层和PCS子层/PMA子层.......................................................................................................................76.4MPCP.................................................................................................................................................................86.5扩展的OAM层要求.......................................................................................................................................127网络侧和用户侧接口要求.................................................................................................................................587.1OLT网络侧接口要求......................................................................................................................................587.2ONU用户侧接口要求....................................................................................................................................588以太网功能要求.................................................................................................................................................598.1以太网基本功能..............................................................................................................................................598.2VLAN功能......................................................................................................................................................608.3VLANStackin...