以太網(wǎng)網(wǎng)絡(luò)電話傳送調(diào)度：方法論和案例分析[外文翻譯].doc
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以太網(wǎng)網(wǎng)絡(luò)電話傳送調(diào)度：方法論和案例分析[外文翻譯],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.
以太網(wǎng)網(wǎng)絡(luò)電話傳送調(diào)度：方法論和案例分析
Khaled Salah , 信息與計(jì)算機(jī)科學(xué), Fahd University 皇家石油礦物大學(xué), 信箱5066, Dhahran 31261, 沙特阿拉伯半島 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。網(wǎng)上可用日期2005 年7月1 日。
摘 要
對(duì)網(wǎng)絡(luò)數(shù)據(jù)研究者和設(shè)計(jì)師來(lái)說(shuō)，IP電話或語(yǔ)音IP電話調(diào)度是一項(xiàng)重大而艱巨的任務(wù)。本文概述的準(zhǔn)則和循序漸進(jìn)的方法，解釋了怎樣在IP上成功調(diào)度傳送語(yǔ)音。該方法可用于評(píng)估的支持，并準(zhǔn)備用在現(xiàn)有的網(wǎng)絡(luò)。此前購(gòu)買(mǎi)并部署的網(wǎng)絡(luò)電話設(shè)備，這種方法預(yù)算出了在保證現(xiàn)有網(wǎng)絡(luò)服務(wù)質(zhì)量要求和日后足夠擴(kuò)充能力基礎(chǔ)上的網(wǎng)絡(luò)電話調(diào)用次數(shù)。作為一個(gè)研究的課題，我們把這種方法在一個(gè)典型的小型企業(yè)網(wǎng)上得到逐步應(yīng)用。我們運(yùn)用分析和模擬吞吐量和延遲區(qū)域。我們的分析基于排隊(duì)理論，并且OPNET用于模擬。理論分析和模擬結(jié)構(gòu)比較一致。此外，本文談?wù)摿嗽S多設(shè)計(jì)和工程問(wèn)題。這些問(wèn)題包括網(wǎng)絡(luò)電話通信的特征和服務(wù)質(zhì)量要求，網(wǎng)絡(luò)電話流程和呼叫分配，定義未來(lái)增長(zhǎng)容量，測(cè)定后臺(tái)通信的影響。
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.
以太網(wǎng)網(wǎng)絡(luò)電話傳送調(diào)度：方法論和案例分析
Khaled Salah , 信息與計(jì)算機(jī)科學(xué), Fahd University 皇家石油礦物大學(xué), 信箱5066, Dhahran 31261, 沙特阿拉伯半島 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。網(wǎng)上可用日期2005 年7月1 日。
摘 要
對(duì)網(wǎng)絡(luò)數(shù)據(jù)研究者和設(shè)計(jì)師來(lái)說(shuō)，IP電話或語(yǔ)音IP電話調(diào)度是一項(xiàng)重大而艱巨的任務(wù)。本文概述的準(zhǔn)則和循序漸進(jìn)的方法，解釋了怎樣在IP上成功調(diào)度傳送語(yǔ)音。該方法可用于評(píng)估的支持，并準(zhǔn)備用在現(xiàn)有的網(wǎng)絡(luò)。此前購(gòu)買(mǎi)并部署的網(wǎng)絡(luò)電話設(shè)備，這種方法預(yù)算出了在保證現(xiàn)有網(wǎng)絡(luò)服務(wù)質(zhì)量要求和日后足夠擴(kuò)充能力基礎(chǔ)上的網(wǎng)絡(luò)電話調(diào)用次數(shù)。作為一個(gè)研究的課題，我們把這種方法在一個(gè)典型的小型企業(yè)網(wǎng)上得到逐步應(yīng)用。我們運(yùn)用分析和模擬吞吐量和延遲區(qū)域。我們的分析基于排隊(duì)理論，并且OPNET用于模擬。理論分析和模擬結(jié)構(gòu)比較一致。此外，本文談?wù)摿嗽S多設(shè)計(jì)和工程問(wèn)題。這些問(wèn)題包括網(wǎng)絡(luò)電話通信的特征和服務(wù)質(zhì)量要求，網(wǎng)絡(luò)電話流程和呼叫分配，定義未來(lái)增長(zhǎng)容量，測(cè)定后臺(tái)通信的影響。
