Concept of Virtual Path Hopping to Improve QoS and Reliability of Connection-oriented Networks

• Item type: Journal(1)
• 公開日: 2006-08-15
• タイトル: Concept of Virtual Path Hopping to Improve QoS and Reliability of Connection-oriented Networks
• タイトル / 言語: en
• タイトル: Concept of Virtual Path Hopping to Improve QoS and Reliability of Connection-oriented Networks
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: 論文
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者所属: Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者所属: Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者所属(英): en
• 著者所属(英): Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者所属(英): en
• 著者所属(英): Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者所属(英): en
• 著者所属(英): Department of Electronics (Miki Laboratory), The National University of Electro-Communications
• 著者名: Manodha, Gamage; Mitsuo, Hayasaka; Tetsuya, Miki
• 著者名(英): Manodha, Gamage; Mitsuo, Hayasaka; Tetsuya, Miki
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The QoS provided by today’s best effort Internet is not good enough for real-time premium traffic. It is believed that the QoS guarantees of the Internet could be better provided by connection-oriented networks. IP/MPLS is one such technology and these connection-oriented networks are inherently more vulnerable to network failures. Network failures can broadly be classified into two types, ie., link/path and degraded failures. Degraded failures that account for about 50% of total failures are detected by control-plane timers. The control plane andthe data plane of IP/MPLS networks are logically separated and therefore a failure in the control plane should not immediately terminate communications on the data plane. The Virtual Path Hopping (VPH) concept proposed in this study distinguishes these degraded failures from link/path failures and avoids the terminations of data communications on the data plane that are due to these degraded failures. It changes the traffic carrying a degraded VP to a new VP in a predetermined VP-pool before the control-plane timer expires due to degraded failure. This paper discusses the concept of VPH and its numerous advantages such as load balancing, traffic distribution, and the ability to support dual-failure situations. Computer simulations were conducted and the results are presented to support the concept of VPH.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The QoS provided by today’s best effort Internet is not good enough for real-time premium traffic. It is believed that the QoS guarantees of the Internet could be better provided by connection-oriented networks. IP/MPLS is one such technology and these connection-oriented networks are inherently more vulnerable to network failures. Network failures can broadly be classified into two types, ie., link/path and degraded failures. Degraded failures that account for about 50% of total failures are detected by control-plane timers. The control plane andthe data plane of IP/MPLS networks are logically separated and therefore a failure in the control plane should not immediately terminate communications on the data plane. The Virtual Path Hopping (VPH) concept proposed in this study distinguishes these degraded failures from link/path failures and avoids the terminations of data communications on the data plane that are due to these degraded failures. It changes the traffic carrying a degraded VP to a new VP in a predetermined VP-pool before the control-plane timer expires due to degraded failure. This paper discusses the concept of VPH and its numerous advantages such as load balancing, traffic distribution, and the ability to support dual-failure situations. Computer simulations were conducted and the results are presented to support the concept of VPH.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 47, 号 8, p. 2684-2696, 発行日 2006-08-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764