[比较全面的ppt模板.ppt

Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 建设 21 世纪具有国际先进水平的教育与科研计算机网 Novell中国区 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 面向 21 世纪的校园计算环境 布建高速骨干网 多媒体教学及网络授课。 视频点播及会议 校园IC卡应用 随时随地的接入 高性能计算服务 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 目前校园网所面临现象一：IP地址管理 IP地址管理困难，IP地址与人不对应，无法根据IP地址确定使用者的身份，权限。 不能以用户名收取Internet访问费用，甚至存在IP地址的冒用，盗用现象，影响正常用户的使用 不能根据用户名管理其上网时间，上网时限 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 目前校园网所面临现象二：带宽管理 带宽不足，访问性能较差，等待时间较长，费用较高 无优先级区分，教师和重要科研单位与学生共享带宽，不能得到优先访问 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 目前校园网所面临现象三：访问站点管理 对Internet网站内容的控制例如：色情站点，政治站点，聊天室等不够。 不但不利学生成长，而且影响科研教育站点的访问。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 目前校园网所面临现象四：成本管理 对基于Win31, Win95/98, Win NT的客户端的维护和管理成本很高 软件分发安装及维护成本很高 网络硬件资产管理管理成本很高 公共机房管理尤为突出 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copy