8070V100R005 NetStream Software Requirements
Specification
Confidential
机密
Catalog 目 录
1 Introduction 简介.........................................................................................................................7
1.1 Purpose 目的..........................................................................................................................7
1.2 Scope 范围.............................................................................................................................7
2 General description总体概述......................................................................................................8
2.1 Software perspective 软件概述..............................................................................................8
2.1.1 About the Project 项目介绍..............................................................................................8
2.1.2 Environment of Product 产品环境介绍.............................................................................9
2.2 Software function 软件功能..................................................................................................10
2.3 User characteristics 用户特征..............................................................................................11
2.4 Assumptions & Dependencies 假设和依赖关系...................................................................12
3 Requirements Modeling 需求建模............................................................................................12
3.1 Modeling tool 1 建模工具1...................................................................................................12
4 Specific Requirements 具体需求..............................................................................................13
4.1 Functional Requirements 功能需求......................................................................................13
4.1.1 R.FUNC.1 支持对输入IP报文按网络流分类统计............................................................13
4.1.2 R.FUNC.2 支持对输出IP报文按流分类统计...................................................................15
4.1.3 R.FUNC.3 支持流的按时老化........................................................................................16
4.1.4 R.FUNC.7 支持按UDP V5.00格式输出流统计信息........................................................17
4.1.5 R.FUNC.10 输出流统计时支持防火墙的快速处理.........................................................24
4.1.6 R.FUNC.11 流统计时支持策略路由的快速处理.............................................................24
4.1.7 R.FUNC.12 支持热插拔和热备份...................................................................................25
4.2 Performance Requirements 性能需求..................................................................................25
4.2.1 R.PERF.1 同时统计流数................................................................................................25
4.3 External Interface Requirements 外部接口需求...................................................................26
4.3.1 User Interface 用户接口.................................................................................................26
4.3.2 Software Interface 软件接口...........................................................................................31
4.3.3 Hardware Interface 硬件接口.........................................................................................31
4.3.4 Communication Interface 通讯接口................................................................................32
5 Overall Design Constraints 总体设计约束................................................................................32
5.1 Standards compliance 标准符合性......................................................................................32
5.2 Hardware Limitations 硬件约束............................................................................................32
5.3 Technology Limitations 技术限制.........................................................................................32
6 Software Quality Attributes 软件质量特性................................................................................33
6.1 Reliability 可靠性..................................................................................................................33
6.2 Usability 易用性....................................................................................................................33
6.3 安全性..................................................................................................................................33
6.4 可维护性...............................................................................................................................33
6.5 可移植性...............................................................................................................................33
7 Dependencies 依赖关系...........................................................................................................34
8 Other Requirements其他需求...................................................................................................34
8.1 Database数据库...................................................................................................................34
8.2 Operations 操作...................................................................................................................34
8.3 Localization 本地化..............................................................................................................34
9 Requirements Classification 需求分级.....................................................................................34
2018-02-06 All rights reserved 版权所有，侵权必究 Page 3 , Total 37 第3页，共37页
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