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A study on traffic management cooperating with IMS in MPLS networks

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Abstract

IMS (IP multimedia subsystem) is a key technology, to enable NSPs (network service providers) to provide various services over IP-based networks. In order for NSPs to provide stable network services, it is important to realize QoS in the transport stratum. RACF (Resource and admission control functions) has being standardized to perform admission control from the demands of users. However, the admission control of RACF for MPLS (Multiprotocol label switching) requires high functionality in the routers (e.g., monitor traffic and traffic shaping in each LSP [Label switched paths]) and gives large impact on the operation of NSPs. By utilizing the information which IMS function provides and basic MPLS function, we propose the feasible traffic management which distributes the traffic of specific class over multiple LSPs (Label switched paths) in the consideration of the traffic accommodation. Our evaluation shows that the proposed method distributing the traffic over two LSPs has enough effect.

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Authors and Affiliations

  1. National Institute of Information and Communications Technology, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795, Japan

    Takeshi Usui

  2. KDDI R&D Laboratories, Inc., 2-1-15 Ohara, Fujimino, Saitama, 356-8502, Japan

    Yoshinori Kitatsuji & Hidetoshi Yokota

Authors
  1. Takeshi Usui
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  2. Yoshinori Kitatsuji
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  3. Hidetoshi Yokota
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Correspondence to Takeshi Usui.

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Usui, T., Kitatsuji, Y. & Yokota, H. A study on traffic management cooperating with IMS in MPLS networks. Telecommun Syst 52, 671–680 (2013). https://doi.org/10.1007/s11235-011-9511-7

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  • DOI: https://doi.org/10.1007/s11235-011-9511-7

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