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基于MPLS的移動(dòng)IP網(wǎng)絡(luò)的移動(dòng)性支持：平滑切換與路由優(yōu)化

李云,  隆克平,  陳前斌,  鄺育軍

李云, 隆克平, 陳前斌, 鄺育軍. 基于MPLS的移動(dòng)IP網(wǎng)絡(luò)的移動(dòng)性支持：平滑切換與路由優(yōu)化[J]. 電子與信息學(xué)報(bào), 2006, 28(7): 1317-1321.
引用本文: 李云, 隆克平, 陳前斌, 鄺育軍. 基于MPLS的移動(dòng)IP網(wǎng)絡(luò)的移動(dòng)性支持：平滑切換與路由優(yōu)化[J]. 電子與信息學(xué)報(bào), 2006, 28(7): 1317-1321.
Li Yun, Long Ke-ping, Chen Qian-bin, Kuang Yu-jun. Mobility Support in MPLS-Based Mobile IP Networks: Smooth Handoff and Route Optimization[J]. Journal of Electronics & Information Technology, 2006, 28(7): 1317-1321.
Citation: Li Yun, Long Ke-ping, Chen Qian-bin, Kuang Yu-jun. Mobility Support in MPLS-Based Mobile IP Networks: Smooth Handoff and Route Optimization[J]. Journal of Electronics & Information Technology, 2006, 28(7): 1317-1321.

基于MPLS的移動(dòng)IP網(wǎng)絡(luò)的移動(dòng)性支持：平滑切換與路由優(yōu)化

Mobility Support in MPLS-Based Mobile IP Networks: Smooth Handoff and Route Optimization

  • 摘要: 為了減小基于MPLS的移動(dòng)IP網(wǎng)絡(luò)的信令開銷、切換時(shí)延和切換丟包，人們提出了一種稱為LSP擴(kuò)展的移動(dòng)性管理機(jī)制。LSP擴(kuò)展存在兩個(gè)問題：一是擴(kuò)展的LSP可能存在環(huán)路；二是需要定義中止LSP擴(kuò)展的準(zhǔn)則。針對上述問題，該文首先給出了LSP擴(kuò)展的環(huán)路消除技術(shù)，然后定義了中止擴(kuò)展LSP的準(zhǔn)則，即用戶信息和信令信息代價(jià)函數(shù)；并理論分析了用戶信息和信令信息代價(jià)函數(shù)的計(jì)算過程，討論了如何通過該代價(jià)函數(shù)中止擴(kuò)展LSP。性能分析結(jié)果表明，根據(jù)該準(zhǔn)則中止擴(kuò)展LSP能在較大程度上減小LSP擴(kuò)展機(jī)制的開銷。
    Abstract: An LSP extension mechanism is proposed to decrease the signaling overhead and handoff delay and to eliminate the packet loss in MPLS based mobile IP networks. For the LSP extension mechanism, some loops may exist in extended LSP, and the criterion used for breaking down the extended LSP is not proposed. Aiming to these problems, this paper firstly gives a method to avoid forming loops in extended LSP. Then, a criterion, i.e. user information cost function and signal information cost function, are defined to breaking down the extended LSP, and the analysis is provided to calculate these cost functions. How to utilize the cost functions to break down the extended LSP is also discussed. The performance evaluation results denote that overhead of LSP extension mechanism can be decreased by breaking down the extended LSP according to the proposed criterion.
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  • Perkins C. IP mobility support. IETF RFC 3344, 2002.[2]Gustafsson E, Jonsson A, Perkins C. Mobile IPv4 regional registration. IETF INTERNET DRAFT draft-ietf-mobileip-regtun-03.txt, 2003.[3]Perkins C, Johnson D B. Route optimization in mobile IP. IETF INTERNET DRAFT draft-ietf-mobileip-optim-09.txt, 2000.[4]Rosen E, Viswanathan A, Callon R. Multiprotocol label switchingarchitecture, IETF RFC3031, 2001.[5]Zhong R, Tham C. K, Foo C K, Ko C C[J].Integration of mobile IP and multi-protocol label switching. In Proc. IEEE ICC 2001,Helsinki, Finland.2001, vol.7:2123-2127[6]Yang T.[J].Makrakis D. Hierarchical mobile MPLS: supporting delay sensitive applications over wireless internet. International Conferences on Info-Tech Info-Net (ICII 2001), Beijing, China.2001,:-[7]Xie Q Y, Nguyen H M, Tan P, Seah W K G. Handover supporting QoS in MPLS-based hierarchical mobile IPv6 networks. IEEE 58th Vehicular Technology Conference, Florida, USA, 2003, Vol.5: 3523-3526.[8]Choi J K, Lee Y K, Yang S H, et al.. Extension of LDP for mobile IP service through the MPLS network. IETF INTERNET DRAFT draft-choi-mobileip- ldpext-01.txt, 2001.[9]Kim H, Wong, K-S D, Chen W, Lau C L. Mobility-aware MPLS in IP-based wireless access networks. IEEE Global Telecomm-unications Conference, Texas, USA, 2001, vol.6: 3444-3448.[10]Braden R, Clark D, Shenker S. Integrated services architecture. IETF RFC1633, 1994.[11]Blake S, Black D, Carlson M, Davies E, et al.. An architecture for differentiated services. IETF RFC2475, 1998.[12]ITU Draft Recommendation Y.MIPoMPLS. Mobile IP services over MPLS. 2003.[13]Andersson L, Doolan P, Feldman N, et al.. LDP Specification. IETF RFC 3036，2001.
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出版歷程
  • 收稿日期:  2004-11-29
  • 修回日期:  2005-09-02
  • 刊出日期:  2006-07-19

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