【正文】 .........................................................53. QOS 體系結構 ...............................................................................................................53. QOS 實現(xiàn)機制 ...............................................................................................................54. QOS 規(guī)劃 .......................................................................................................................58. 可靠性設計 .............................................................................................................................60. 設備級可靠 ....................................................................................................................60. 鏈路級可靠 ....................................................................................................................61. 網管系統(tǒng)設計 .........................................................................................................................61. 網管系統(tǒng)需求 ................................................................................................................61. 網管系統(tǒng)功能 ................................................................................................................627. 數(shù)字城管安全系統(tǒng)方案 .................................................................................................................65. 網絡安全威脅分析 .................................................................................................................65. 網絡安全必要性 .....................................................................................................................65. 網絡結構安全策略 .................................................................................................................66. 局域網和主機安全策略 .........................................................................................................67. 數(shù)據安全策略 .........................................................................................................................68 4 . 防病毒措施 .............................................................................................................................69. 安全防御體系設計 .................................................................................................................69. 全方位多層次防御 ........................................................................................................69. 應用軟件安全設計 ........................................................................................................69. 三類重點保護區(qū)域 ........................................................................................................70. 功能技術要求 .........................................................................................................................71. 防火墻 ............................................................................................................................71. 入侵防御系統(tǒng) ................................................................................................................72. 漏洞掃描系統(tǒng) ................................................................................................................72. 終端準入防御系統(tǒng) ........................................................................................................73. 安全審計系統(tǒng) ................................................................................................................74. 用戶上網行為審計系統(tǒng) ................................................................................................74. 應用加速與負載均衡設備 ............................................................................................75. 安全隔離網閘 ................................................................................................................75. 防病毒系統(tǒng) ....................................................................................................................77. 安全管理中心 ................................................................................................................78. 安全管理制度 .........................................................................................................................79. 操作安全管理制度 ........................................................................................................79. 場地與設施安全管理制度 ............................................................................................80. 安全使用管理制度 ........................................................................................................80. 操作系統(tǒng)和數(shù)據庫安全管理制度 ................................................................................81. 技術文檔安全管理制度 ................................................................................................81. 數(shù)據安全管理制度 ........................................................................................................81. 應急管理制度 ................................................................................................................81. 審計管理制度 ................................................................................................................828. 存儲備份系統(tǒng)方案 .........................................................................................................................83. 數(shù)據存儲方案 .........................................................................................................................83. SAN 存儲特點 ................................................................................................................83. 存儲方案 ........................................................................................................................85. 數(shù)據備份方案 .........................................................................................................................86. 數(shù)據備份必要性 ............................................................................................................86. 數(shù)據備份原則 ................................................................................................................