共查询到20条相似文献,搜索用时 93 毫秒
1.
2.
3.
当校园网引入一条新的出口链路时,用户认证计费方式、用户IP地址、网络拓扑结构往往需要调整,给用户及网管人员带来诸多不便.上海财经大学在原有教科网链路的基础上引进新的联通链路时,没有修改网络拓扑结构,仅仅修改BRAS(宽带远程接入服务器)设备的配置,就实现了新链路的快速部署,完成校园网的多出口升级.升级完成后,用户可以选择接入不同的出口链路,只需要修改用户名和密码就可以实现不同出口链路之间的切换.文给出基于BRAS设备的多出口升级方案、校园网的网络拓扑、用户身份认证方案、BRAS设备上的关键配置以及升级完成后的使用情况. 相似文献
4.
分析了目前高校教育科研网链路冗余备份方法的不足,利用现有高校多出口网络,通过使用GRE隧道模式建立一条虚拟冗余备份链路的方法,提出了一种校园网多出口网络下基于GRE隧道模式的链路虚拟冗余备份的路由策略方案。 相似文献
5.
校园网的出口是网络规划和建设中需要重点考虑的问题,它关系到校园网用户对Internet访问的速度,本文就校园网的多链路接入方法进行了分析,介绍了采用先进成熟的流量管理设备LinkProof实现多链路接入的解决方案,并和传统的多链路接入方案进行了分析对比。该方案充分整合了CERNET及本地ISP的优势资源,并作到多链路负载均衡,在高校校园网中进行了实际应用,是行之有效的校园网出口瓶颈及链路负载均衡的解决办法。 相似文献
6.
7.
介绍了一个校园网接入互联网的上网管理计费的方案 ,该方案所采用的 Dr.COM2 0 33BMG计费管理网关系列产品是局部网络内部用户接入互联网的验证、授权、用户管理和计费服务器 ,同时还是一个两个交换式以太网口的路由器 ,提供完善的网络管理计费统计软件 ,提供多种计费方式 ,并能对用户的上网记录和使用流量等数据进行统计和整理。是性价比很高的优秀软件 相似文献
8.
田野 《数字社区&智能家居》2007,(23)
介绍FreeBSD防火墙技术和地址转发功能,并结合CGI编程技术,实现校园网双链路接入Internet,用户上网认证、带宽控制和计费管理,以及蠕虫病毒的防范. 相似文献
9.
在校园网中同时部署多套上网认证系统并使用统一的账号密码是常见的上网认证部署方案。多套上网认证系统并存时如何对在线用户进行统一管控、用户上线轨迹追踪和分析,以及如何对多套上网认证系统进行统一监控管理是当前校园网管理面临的共同问题。对此设计和实现了一种面向多认证系统的统一在线用户管控平台,并在真实校园网环境中测试使用,测试结果验证了平台的有效性。 相似文献
10.
11.
This article describes the rationale for the multiphase creative problem solving process, and reports the findings from an empirical investigation conducted to facilitate the problem solving of managers. The ideational skills of the managers were assessed before and after training in a complete process of creative problem solving, along with their ideational attitudes, creative problem solving style (i.e., generator, conceptualizer, optimizer, or implementor), and evaluative skill (i.e., ability to recognize original ideas). The most important findings indicated that the training had a significant impact on the evaluative accuracy of the managers. They were significantly more accurate in their judgments about original ideas after training, both in their identification of original ideas and their recognition of unoriginal ideas. After training, the managers also gave more solutions and more original solutions to problems. Finally, several variables (e.g., the “preference for active divergence” attitude, and the conceptualizer process style) seemed to moderate the impact of training. Training was therefore effective, with specific effects that can be predicted from pre-training individual differences in attitudes and process style. 相似文献
12.
13.
The deep connection between the Burrows–Wheeler transform (BWT) and the so-called rank and select data structures for symbol sequences is the basis of most successful approaches to compressed text indexing. Rank of a symbol at a given position equals the number of times the symbol appears in the corresponding prefix of the sequence. Select is the inverse, retrieving the positions of the symbol occurrences. It has been shown that improvements to rank/select algorithms, in combination with the BWT, turn into improved compressed text indexes. 相似文献
14.
15.
16.
17.
18.
为提高高等院校的管理水平和决策水平,充分利用校园网资 源,开发了高等院校行政财政分析与决策系统。解决了诸如数据的动态查询、自动生成报表 、网络环境下数据共享等技术问题,具有网上数据共享、图形界面友好和安全的保密措施等 特点。 相似文献
19.
Harshavardhana P. Jonckheere E. Silverman L. 《Automatic Control, IEEE Transactions on》1984,29(8):744-746
A new method of stochastic model reduction has recently been introduced by Desai et al. [1], [2]. The stability of the reduced order model has not previously, been considered. In this paper, we show that the stability of the reduced order model follows directly from the results of Pernebo and Silverman [3]. It is also shown that the reduced order model is minimal, in the controllability/observability sense. The relevance of this notion of minimality to stochastic minimality is made clear. 相似文献
20.