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題名 | TWAREN網路服務等級契約之研究=Service Level Agreement for TWAREN Networks |
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作者 | 周立德; 陳彥文; 洪茂元; 林彥丞; 梁宏漢; 陳瑞明; 顏經洲; 陳勝賢; 徐賢儒; 蔡令傑; 薛茹分; 楊哲男; 郭書宏; Chou, Li-der; Chen, Yen-wen; Hong, Mao-yuan; Lin, Yen-cheng; Liang, Hong-han; Chen, Jui-ming; Yen, Jing-jou; Chen, Sheng-hsien; Hsu, Hsien-ju; Tsai, Ling-chieh; Hsueh, Ju-fen; Yang, Che-nan; Kuo, Shu-hung; |
期刊 | 網際網路技術學刊 |
出版日期 | 20060400 |
卷期 | 7:2 民95.04 |
頁次 | 頁145-151 |
分類號 | 448.6 |
語文 | chi |
關鍵詞 | 服務等級契約; 服務品質分析; TWAREN; TWAREN networks; SLA; QoS analysis; |
中文摘要 | 新一代的TWAREN網路提供高速網路服務與品質保證,同時納入服務等級契約之機制,規範其所宣稱的服務品質,利用統計資料和機率中的Probability Density Function (PDF)和Cumulative Distribution Function (CDF)評估可能的指標,同時比較TWAREN由Production Network換至Research Network服務參數差異。分析PDF是那些連結造成pulse,評估可能的因素,利用CDF和內差法,研究如何擬訂服務等級契約中服務品質參數。分析的結果我們發現骨幹切換前後Average Round Trip Time (RTT)降低約1.5%,Packet Loss Rate (PLR)降低約42%,而整體可用率(Availability)提高約0.08%。最後我們建議TWAREN服務等級契約(Service Level Agreement, SLA)之服務品質參數的擬訂,Average RTT為9.44 (ms)、PLR為0.89%、Availability為99%,提供未來與TWAREN網路營運汲汲相關的網路管理策略與新世代營運管理系統進行規劃。 |
英文摘要 | The next generation network, TWAREN, provides the wideband network service and guarantees qualities of services (QoS). Likewise, it embraces the mechanism of SLA which guarantees for QoS claimed. The research exploits PDF and CDF in the statistics and probability to estimate the likely index of QoS. We also compare the performances of the Production network with Research network and try to comprehend which factors may cause the pulses on the plots. Consequently, we observe that AvgRTT is lower 1.5%, PLR gets lower 42% and Availability is higher 0.08% as compared to Production network. Ultimately, we recommend that TWAREN network can draft Average RTT as 9.44ms, PLR as 0.89% and Availability as 99%. These metrics can supply the related policies of network management and the service operations for TWAREN in the future. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。