【正文】 **省廣播電視網絡股份有限公司 C— DOCSIS 技術規(guī)范書 （ 暫行 ） **省廣播電視網絡股份有限公司 2020 年 3 月 2 目錄 一、概述 .......................................................................................................................... 4 二、適用范圍 ................................................................................................................... 4 三、制定 CDOCSIS 技術規(guī)范的依據 ................................................................................. 4 國家標準及行業(yè)標準 .............................................................................................. 4 ITUT/IETF/IEEE 標準 ............................................................................................ 4 企業(yè)標準 ................................................................................................................ 5 四、 CDOCSIS 總體架構 .................................................................................................... 5 +CCMTS 系統(tǒng)結構原理 ....................................................................................... 5 CDOCSIS 系統(tǒng)架構 ................................................................................................. 6 五、功能模塊技術規(guī)范 ..................................................................................................... 7 系統(tǒng)控制模塊 .......................................................................................................... 8 分類轉發(fā)模塊 .......................................................................................................... 8 射頻接口模塊 .......................................................................................................... 8 六、數據轉發(fā)功能要求 ..................................................................................................... 8 基本要求 ................................................................................................................ 8 組播 ....................................................................................................................... 9 組播協(xié)議 ......................................................................................................... 9 組播性能 ......................................................................................................... 9 DHCP 中繼功能支持 ........................................................................................ 9 業(yè)務配置 ......................................................................................................... 10 業(yè)務流分類 ................................................................................................... 10 業(yè)務流 QoS ................................................................................................... 10 業(yè)務流調度 ................................................................................................... 11 QoS 動態(tài)配置策略 ........................................................................................ 11 安全性能規(guī)范 ....................................................................................................... 11 CM 認證 ........................................................................................................ 11 CPE 接入數量控制 ........................................................................................ 11 IP 源地址檢查 ............................................................................................. 11 防 DoS 攻擊 .................................................................................................. 12 用戶隔離 ...................................................................................................... 12 七、網管運維要求 ...................