以太网网络电话传送调度：方法论和案例分析[外文翻译].doc
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以太网网络电话传送调度：方法论和案例分析[外文翻译],on the deployment of voip in ethernet networks:methodology and case studykhaled salah, department of information and computer science, king fahd university of p...
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On the deployment of VoIP in Ethernet networks:
methodology and case study
Khaled Salah, Department of Information and Computer Science, King Fahd University of Petroleum and Minerals, P.O. Box 5066, Dhahran 31261, Saudi Arabia
Received 25 May 2004; revised 3 June 2005; accepted 3 June 2005. Available online 1 July 2005.
Abstract
Deploying IP telephony or voice over IP (VoIP) is a major and challenging task for data network researchers and designers. This paper outlines guidelines and a step-by-step methodology on how VoIP can be deployed successfully. The methodology can be used to assess the support and readiness of an existing network. Prior to the purchase and deployment of VoIP equipment, the methodology predicts the number of VoIP calls that can be sustained by an existing network while satisfying QoS requirements of all network services and leaving adequate capacity for future growth. As a case study, we apply the methodology steps on a typical network of a small enterprise. We utilize both analysis and simulation to investigate throughput and delay bounds. Our analysis is based on queuing theory, and OPNET is used for simulation. Results obtained from analysis and simulation are in line and give a close match. In addition, the paper discusses many design and engineering issues. These issues include characteristics of VoIP traffic and QoS requirements, VoIP flow and call distribution, defining future growth capacity, and measurement and impact of background traffic.
以太网网络电话传送调度：方法论和案例分析
Khaled Salah , 信息与计算机科学, Fahd University 皇家石油矿物大学, 信箱5066, Dhahran 31261, 沙特阿拉伯半岛 收到日期2004 年5月25 日; 校正日期2005 年6月3 日; 接受日期2005 年6月3 日。网上可用日期2005 年7月1 日。
摘 要
对网络数据研究者和设计师来说，IP电话或语音IP电话调度是一项重大而艰巨的任务。本文概述的准则和循序渐进的方法，解释了怎样在IP上成功调度传送语音。该方法可用于评估的支持，并准备用在现有的网络。此前购买并部署的网络电话设备，这种方法预算出了在保证现有网络服务质量要求和日后足够扩充能力基础上的网络电话调用次数。作为一个研究的课题，我们把这种方法在一个典型的小型企业网上得到逐步应用。我们运用分析和模拟吞吐量和延迟区域。我们的分析基于排队理论，并且OPNET用于模拟。理论分析和模拟结构比较一致。此外，本文谈论了许多设计和工程问题。这些问题包括网络电话通信的特征和服务质量要求，网络电话流程和呼叫分配，定义未来增长容量，测定后台通信的影响。
methodology and case study
Khaled Salah, Department of Information and Computer Science, King Fahd University of Petroleum and Minerals, P.O. Box 5066, Dhahran 31261, Saudi Arabia
Received 25 May 2004; revised 3 June 2005; accepted 3 June 2005. Available online 1 July 2005.
Abstract
Deploying IP telephony or voice over IP (VoIP) is a major and challenging task for data network researchers and designers. This paper outlines guidelines and a step-by-step methodology on how VoIP can be deployed successfully. The methodology can be used to assess the support and readiness of an existing network. Prior to the purchase and deployment of VoIP equipment, the methodology predicts the number of VoIP calls that can be sustained by an existing network while satisfying QoS requirements of all network services and leaving adequate capacity for future growth. As a case study, we apply the methodology steps on a typical network of a small enterprise. We utilize both analysis and simulation to investigate throughput and delay bounds. Our analysis is based on queuing theory, and OPNET is used for simulation. Results obtained from analysis and simulation are in line and give a close match. In addition, the paper discusses many design and engineering issues. These issues include characteristics of VoIP traffic and QoS requirements, VoIP flow and call distribution, defining future growth capacity, and measurement and impact of background traffic.
以太网网络电话传送调度：方法论和案例分析
Khaled Salah , 信息与计算机科学, Fahd University 皇家石油矿物大学, 信箱5066, Dhahran 31261, 沙特阿拉伯半岛 收到日期2004 年5月25 日; 校正日期2005 年6月3 日; 接受日期2005 年6月3 日。网上可用日期2005 年7月1 日。
摘 要
对网络数据研究者和设计师来说，IP电话或语音IP电话调度是一项重大而艰巨的任务。本文概述的准则和循序渐进的方法，解释了怎样在IP上成功调度传送语音。该方法可用于评估的支持，并准备用在现有的网络。此前购买并部署的网络电话设备，这种方法预算出了在保证现有网络服务质量要求和日后足够扩充能力基础上的网络电话调用次数。作为一个研究的课题，我们把这种方法在一个典型的小型企业网上得到逐步应用。我们运用分析和模拟吞吐量和延迟区域。我们的分析基于排队理论，并且OPNET用于模拟。理论分析和模拟结构比较一致。此外，本文谈论了许多设计和工程问题。这些问题包括网络电话通信的特征和服务质量要求，网络电话流程和呼叫分配，定义未来增长容量，测定后台通信的影响。
