GPON技术规范G.984.3中文版

目次...........................................................................................................................................I 前言...........................................................................................................................................III1范围............................................ ...................................................................................................42规范性引用文件...........................................................................................................................43术语和定义...................................................................................................................................43.1ONT和ONU...............................................................................................................................43.2数据业务成帧方式和GEM的关系...........................................................................................43.3上行ONU流量控制设备...........................................................................................................54缩略语...........................................................................................................................................75GTC概述.......................................................................................................................................85.1概述............................................................................................................................................85.2C/M平面协议栈.........................................................................................................................95.3U平面协议栈............................................................................................................................105.4GTC关键功能..........................................................................................................................115.5GTC各子层功能......................................................................................................................125.6业务流与QoS..........................................................................................................................135.7DBA规定..................................................................................................................................136GTC成帧.....................................................................................................................................146.1概述..........................................................................................................................................146.2下行帧结构..............................................................................................................................156.3上行帧结构..............................................................................................................................196.4业务流到GTC净荷的映射.....................................................................................................226.5动态带宽分配信令和配置......................................................................................................257GTC消息.....................................................................................................................................287.1概述..........................................................................................................................................287.2PLOAM消息格式.....................................................................................................................287.3Control消息..............................................................................................................................298激活方式.....................................................................................................................................428.1概述..........................................................................................................................................428.2ONU激活概述..........................................................................................................................428.3ONU状态..................................................................................................................................448.4ONU功能转移..........................................................................................................................468.5ONU事件..................................................................................................................................488.6在O3和O4状态下的安静时长.............................................................................................508.7ONU定时..................................................................................................................................518.8功率电平调整..........................................................................................................................539告警和性能监测.........................................................................................................................539.1告警..........................................................................................................................................54 9.2性能监测..................................................................................................................................57 10安全...........................................................................................................................................5810.1基本威胁模型........................................................................................................................5810.2加密系统................................................................................................................................5810.3密钥交换和切换....................................................................................................................5911前向纠错...................................................................................................................................5911.1概述........................................................................................................................................5911.2下行FEC................................................................................................................................6011.3上行FEC................................................................................................................................6211.4ONU发送活动........................................................................................................................65 附 录A（规范性附录）GEM通道上的用户业务流传送.................................................66A.1 GEM帧到GTC净荷的映射.....................................................................................................66A.2 TDM over GEM...............................................................................................................66 ........ A.3 Ethernet over GEM..........................................................................................................67 ........ 附 录B（规范性附录）GEM帧头差错控制解码.............................................................68 附 录C（规范性附录）OLT激活过程概述.......................................................................70C.1公共部分.................................................................................................................................70C.1.1OLT公共部分的状态...........................................................................................................70C.1.2公共部分状态图..................................................................................................................70C.1.3OLT公共部分功能转移.......................................................................................................70C.1.4OLT公共部分事件...............................................................................................................71C.2ONU特定部分.........................................................................................................................72C.2.1OLT特定部分的状态...........................................................................................................72C.2.2ONU特定部分的状态图......................................................................................................72C.2.3ONU特定部分功能转移......................................................................................................73C.2.4ONU特定部分事件..............................................................................................................74C.3自动发现ONU的方法............................................................................................................74C.3.1激活过程类型......................................................................................................................74C.4POPUP过程............................................................................................................................74C.5均衡时延测量原理.................................................................................................................75C.5.1D/S和U/S之间的相位关系..................................................................................................75C.5.2相位关系时延的定义..........................................................................................................75C.5.3RTD测量成功或失败的标准...............................................................................................76 ...................................................................................................42规范性引用文件...........................................................................................................................43术语和定义...................................................................................................................................43.1ONT和ONU...............................................................................................................................43.2数据业务成帧方式和GEM的关系...........................................................................................43.3上行ONU流量控制设备...........................................................................................................54缩略语...........................................................................................................................................75GTC概述.......................................................................................................................................85.1概述............................................................................................................................................85.2C/M平面协议栈.........................................................................................................................95.3U平面协议栈............................................................................................................................105.4GTC关键功能..........................................................................................................................115.5GTC各子层功能......................................................................................................................125.6业务流与QoS..........................................................................................................................135.7DBA规定..................................................................................................................................136GTC成帧.....................................................................................................................................146.1概述..........................................................................................................................................146.2下行帧结构..............................................................................................................................156.3上行帧结构..............................................................................................................................196.4业务流到GTC净荷的映射.....................................................................................................226.5动态带宽分配信令和配置......................................................................................................257GTC消息.....................................................................................................................................287.1概述..........................................................................................................................................287.2PLOAM消息格式.....................................................................................................................287.3Control消息..............................................................................................................................298激活方式.....................................................................................................................................428.1概述..........................................................................................................................................428.2ONU激活概述..........................................................................................................................428.3ONU状态..................................................................................................................................448.4ONU功能转移..........................................................................................................................468.5ONU事件..................................................................................................................................488.6在O3和O4状态下的安静时长.............................................................................................508.7ONU定时..................................................................................................................................518.8功率电平调整..........................................................................................................................539告警和性能监测.........................................................................................................................539.1告警..........................................................................................................................................54 9.2性能监测..................................................................................................................................57 10安全...........................................................................................................................................5810.1基本威胁模型........................................................................................................................5810.2加密系统................................................................................................................................5810.3密钥交换和切换....................................................................................................................5911前向纠错...................................................................................................................................5911.1概述........................................................................................................................................5911.2下行FEC................................................................................................................................6011.3上行FEC................................................................................................................................6211.4ONU发送活动........................................................................................................................65 附 录A（规范性附录）GEM通道上的用户业务流传送.................................................66A.1 GEM帧到GTC净荷的映射.....................................................................................................66A.2 TDM over GEM...............................................................................................................66 ........ A.3 Ethernet over GEM..........................................................................................................67 ........ 附 录B（规范性附录）GEM帧头差错控制解码.............................................................68 附 录C（规范性附录）OLT激活过程概述.......................................................................70C.1公共部分.................................................................................................................................70C.1.1OLT公共部分的状态...........................................................................................................70C.1.2公共部分状态图..................................................................................................................70C.1.3OLT公共部分功能转移.......................................................................................................70C.1.4OLT公共部分事件...............................................................................................................71C.2ONU特定部分.........................................................................................................................72C.2.1OLT特定部分的状态...........................................................................................................72C.2.2ONU特定部分的状态图......................................................................................................72C.2.3ONU特定部分功能转移......................................................................................................73C.2.4ONU特定部分事件..............................................................................................................74C.3自动发现ONU的方法............................................................................................................74C.3.1激活过程类型......................................................................................................................74C.4POPUP过程............................................................................................................................74C.5均衡时延测量原理.................................................................................................................75C.5.1D/S和U/S之间的相位关系..................................................................................................75C.5.2相位关系时延的定义..........................................................................................................75C.5.3RTD测量成功或失败的标准...............................................................................................76