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Analysis of Two-phase Path Management Scheme for MPLS Traffic Engineering
著者
  Hitomi Tamura, Kenji Kawahara, Yuji Oie
 
雑誌名/会議名
  IEICE Trans. on Commun, Vol.E92-B, No.01, pp.59--67, Jan. 2009. 2009 年 1 月
 
アブストラクト
  Traffic Engineering (TE) is important for improving QoS in forwarding paths by efficient use of network resources. In fact, MPLS allows several detour paths to be (pre-)established for some source-destination pair as well as its primary path of minimum hops. Thus, we focus on a two-phase path management scheme using these two kinds of paths. In the first phase, each primary path is allocated to a flow on a specific source-destination pair if the path is not congested, i.e., if its utilization is less than some predetermined threshold; otherwise, as the second phase, one of the detour paths is allocated randomly if the path is available. Therefore, in this paper, we analytically evaluate this path management scheme by extending the M/M/c/c queueing system, and through some numerical results we investigate the impact of a threshold on the flow-blocking probability. Through some numerical results, we discuss the adequacy of the path management scheme for MPLS-TE.
 
キーワード
  MPLS, Traffic Engineering
 
記述言語
  English
 
 

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