MPLS網路中透過SIP支援服務品質的LSP路徑供裝系統

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姓名

林志軒(Zhi-Xuan Lin) 查詢紙本館藏

畢業系所

資訊工程學系

論文名稱

MPLS網路中透過SIP支援服務品質的LSP路徑供裝系統
(SIP-based LSP Provisioning Systems with QoS Support in MPLS Networks)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

會議初始協定（Session Initiation Protocol, SIP）能有效管理日益普及的多媒體影音服務連線，再加上第三代合作計畫（Third Generation Partnership Project, 3GPP）將其制定為網際網路多媒體子系統（IP Multimedia Subsystem, IMS）內的信號協定，成為目前最熱門的研究方向。SIP可用在會議（session）連線時的控制信號（signaling），負責連線的建立、重送、管理、維護及取消等。而實體資料流（或稱多媒體資料流-media stream）則於會議連線建立完成後傳輸。SIP於信號機制運作期間溝通所得的頻寬資訊，僅止於兩個使用者端的通訊能力及多媒體內容格式的溝通，對於SIP連線建立後的語音通話或視訊會議等的應用品質，卻無法提供一個有效的解決方案。目前的方式，連線建立與服務品質保證兩者被完全獨立分開解決，衍生許多整合上的問題及困難。例如當某網段過於壅塞，而使用者傳輸資料的路徑，仍必須通過該網路時，網路傳輸的品質勢必無法滿足這位使用者的需求。本論文提出一個路徑供裝系統（Path Provisioning System），使用者可藉由代理人（agent）於SIP中透過新增的路徑指定參數 w，指定實體資料流的路徑，再透過SIP中既有的頻寬協商參數 b，預留其所需要的網路頻寬大小。將SIP整合於多重協定標籤交換（Multi-Protocol Label Switch, MPLS）網路環境下，使用者可透過系統動態建立或是解除MPLS網路之穿隧通道（tunnel），提供SIP連線建立後之實體資料流的路徑指定及服務品質保證（Quality of Service, QoS）。透過本論文所開發的管理介面，可正確監測目前MPLS核心網路中，路徑頻寬保留的詳細狀況及歷史記錄。

摘要(英)

Session Initiation Protocol (SIP) becomes the hottest research topics now. Because that it can manage audio-video multimedia connections that is popular day by day efficiently and Third Generation Partnership Project（3GPP）makes it to be the internal signaling protocol inside IP Multimedia Subsystem（IMS）. The operation way of SIP is a signaling mechanism during a session.
It is responsible for the setting-up, re-transmission, management, maintenance and cancel of the connection. Data stream (or called media stream) transmits after the finish of setting-up the session connection. The information of bandwidth in SIP that is obtained during the operation of signaling mechanism is only the one that used to negotiate capabilities and required contents between two end users. SIP can not offer an effective solution to get better quality in audio connections or video sessions after setting-up it. In a present way, setting-up connections and the quality of service is resolved independently totally. It would cause a lot of questions and difficulties during integrating them. When a certain network is crowded, and a path of a user’s packet will pass through the network. The quality of that crowded one is impossible to make the user feel satisfied. Our thesis propose a Path Provisioning System. Users can pass their data through the desinating way that they make it by added path parameter w and reserve bandwidth by bandwidth paramete b in SIP by agent.To integrate SIP into Multi-Protocol Label Switch(MPLS) network environment, users can create or crash MPLS tunnel. It provides the ability of desinating path of media stream after SIP connection setting-up and reserve bandwidth to support Quality of Service(QoS). By the management interface of this theiss, administrator can monitor the detail status and history of path and reserved bandwidth in current MPLS core network.

關鍵字(中)

★ Agent
★ MPLS
★ SIP

關鍵字(英)

★ Agent
★ SIP
★ MPLS

論文目次

第一章緒論 1
1.1概要 1
1.2研究動機 2
1.3 研究目標 5
1.4論文架構 6
第二章背景知識與相關研究 7
2.1會議初始協定 7
2.2 SIP擴充方法 13
2.3會議描述協定 16
2.4多重通訊協定標籤交換 18
2.5 MPLS訊務工程 22
2.6 SIP與頻寬保留機制 24
2.7代理人 27
2.8使用者控制之光路徑 27
第三章網路環境與系統設計 29
3.1 網路環境 29
3.2系統設計 31
3.2.1系統設計架構 32
3.2.2 SER延伸擴充模組 33
3.2.3 SIP使用者端代理模組 34
3.2.4 MPLS控制代理模組 36
3.2.4 路徑監測模組 37
3.2.5 權限認證模組 37
3.2.6 SDP參數 38
3.3系統演算法 40
3.4系統訊息流 47
第四章路徑供裝系統實作 49
4.1系統實作架構 49
4.2系統配備及開發環境 50
4.2.1 系統配備 50
4.2.2 開發環境 53
4.3實作 54
4.3.1 SIP使用者端 54
4.3.2 SIP proxy server 58
4.3.3 MPLS控制代理模組 60
4.3.4路徑監測模組 61
4.3.5通道監測器 62
4.3.6 MPLS訊務工程穿隧通道 64
第五章系統評估與測試 72
5.1實驗一系統的向前相容性 73
5.2實驗二路徑的指定與頻寬保留 79
5.3實驗三於壅塞網路下改變路徑後的改善 90
5.4實驗四於壅塞網路下實施頻寬保留後的改善 94
5.5實驗五使用者要求頻寬 97
5.6實驗六使用SIP建立連線後的 100
5.7實驗七 net-to-net 101
第六章結論與未來發展工作 105
6.1結論 105
6.2未來發展工作 105
6.2.1 將頻寬保留套用至每條連線的多媒體種類上 105
6.2.2 系統於異直網路的應用 106
參考文獻 108

參考文獻

[1] 3GPP TS 23.202, v.5.9.0, “Network architecture,” Jun. 2003.
[2] J. D. Rosenberg and R. Shockey, “The Session Initiation Protocol : A Key Component for Internet Telephony,” Communications Convergence Magazine, Jun. 14, 2000.
[3] J. Rosenberg, “Requirements for Session Policy for the Session Initiation Protocol(SIP),” Internet Draft, http://www.jdrosen.net/papers/draft-ietf- sipping-session-policy-req-00.html, Jun. 2003.
[4] W. Marshall, Private “Session Initiation Protocol（SIP） Extensions for Media Authorization,” RFC 3313, Jan. 2003.
[5] J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley and E. Schooler, “SIP: Session Initiation Protocol,” RFC 3261, Jun.2002.
[6] L. Yi-Bing, P. Ai-Chun, H. Yieh-Ran and H. Chlamtac, “An all-IP approach for UMTS third-generation mobile networks,” IEEE Network, Oct, 2002.
[7] H. Guoyou, “Overview of UMTS,” Helsinki University of Technology.
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[9] D. Wisely, P. Eardley and L. Burness, IP for 3G, WILEY, 2002.
[10] 3GPP TS 23.228, v.6.1.0, “IP Multimedia Subsystem（IMS）,” Mar. 2003.
[11] 3GPP TS 24.228, v.5.6.0, “Signalling flows for the IP multimedia call control based on SIP and SDP,” Sep. 2003.
[12] H.323 Standards, http://www.openh323.org/standards.html.
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[16] J. Rosenberg, H. Schulzrinne, G. Camarillo, M. Handley and E. Schooler, “SIP: Session Initiation Protocol,” RFC 2543, Mar. 1999.
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[18] Alan B. Johnston, Understanding the Session Initiation Protocol, Artech House, 2004
[19] S. Donovan, “The SIP INFO Method,” RFC 2976, Oct. 2000.
[20] S. Sparks, “The Session Initiation Protocol（SIP） Refer Method,” RFC 3515, Apr. 2003.
[21] B. Campbell, J. Rosenberg, H. Schulzrinne, C. Huitema and D. Gurle, “Session Initiation Protocol（SIP） Extension for Instant Messaging,” RFC 3428, Dec. 2002.
[22] J. Rosenberg and H. Schulzrinne, “Reliability of Provisional Responses in Session Initiation Protocol（SIP）,” RFC 3262, Jun. 2002.
[23] A. Roach, “Session Initiation Protocol（SIP）-Specific Event Notification,” RFC 3265, 2002
[24] J. Rosenberg, “The Session Initiation Protocol（SIP） UPDATE Method,” RFC 3311, 2002
[25] M. Handley and V. Jacobson, “SDP: Session Description Protocol,” RFC 2327, Apr. 1998.
[26] Kutscher, “Session Description and Capability Negotiation,” Internet Draft, http://www.ietf.org/internet-drafts/draft-ietf-mmusic-sdpng-07.txt, Oct. 2003.
[27] S. Casner, “Session Description Protocol（SDP） Bandwidth Modifiers for RTP Control Protocol（RTCP）Bandwidth,” RFC 3556, Jul. 2003.
[28] F. Andreasen, “Session Description Protocol（SDP）Simple Capability Declaration,” RFC 3407, Oct. 2002.
[29] A. Banerjee, L. Drake, L. Lang, B. Turner, D. Awduche, L. Berger, K. Kompella and Y. Rekhter, “Generalized multiprotocol label switching: an overview of signaling enhancements and recovery techniques,” IEEE Communications Magazine, Jul 2001.
[30] CISCO, “MPLS Traffic Engineering and Enhancement,” Release Number 12.1(3)T, CISCO White Paper, 2001.
[31] To Do Items for Interdomain SIP QoS, http://www.softarmor.com/sipwg/drafts/ morgue/draft-sinnreich-sip-qos-osp-01.txt.
[32] S. Salsano, DIE and L. Veltri, “QoS Control by Means of COPS to Support SIP-Based Applications,” IEEE Network Magizine, pp. 27-33, April 2002.
[33] D. Papalilo, S. Salsano and L. Veltri, “Extending SIP for QoS support,” Courmayeur Conference 2002, Jan. 2002.
[34] D. Durham, Ed., J. Boyle, R. Cohen, S. Herzog, R. Rajan and A. Sastry, “The COPS（Common Open Policy Service） Protocol,” RFC 2748, Jan. 2000.
[35] K. Chan, J. Seligson, D. Durham, S. Gai, K. McCloghrie, S. Herzog, F. Reichmeyer, R. Yavatkar and A. Smith, “COPS Usage for Policy Provisioning（COPS-PR）,” RFC 3084, Mar. 2001.
[36] 3GPP TS 29.207, v.5.4.0, “Policy control over Go interface,” June, 2003.
[37] A.A. Kist, R. J. Harris, “Using virtual SIP links to enable QoS for signalling,” IEEE International Conference on ICON2003, Oct. 2003.
[38] A.A. Kist, R. J. Harris, “Dynamic resource allocation in 3GPP SIP overlay networks,” International Conference on Information, Communications and Signal Processing 2003 and Fourth Pacific Rim Conference on Multimedia(ICICS-PCM), Dec. 2003.
[39] H. Sinnreich, D. Rawlins, A. Johnston, S. Donovan and S. Thomas, “AAA Usage for IP Telephony with QoS,” Internet Draft, draft-sinnreich-aaa- interdomain- qos-osp-00.txt, Jul. 2000.
[40] CA*net4 – UCLP Presentations, http://www.canarie.ca/canet4/uclp/index.html.
[41] R. Radovic,I. Crkvenac and S. Srbljic, “Formal definition of SIP end systems behavior,” Trends in Communications, International Conference on EUROCON 2001, Jul. 2001.
[42] GMPLS Resource Center, http://www.polarisnetworks.com/gmpls/.

指導教授

周立德(Li-Der Chou)

審核日期

2004-7-19

推文