TY - GEN
T1 - Supporting end-to-end QoS in DiffServ/MPLS networks
AU - Chiu, Ji Feng
AU - Huang, Zuo Po
AU - Lo, Chi Wen
AU - Hwang, Wen Shyang
AU - Shieh, Ce Kuen
N1 - Publisher Copyright:
© 2003 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - In MPLS networks, the higher-priority LSP (label switching path) will preempt the resource of lower-priority LSP when its bandwidth resource is limited. At the time, the lower-priority LSP is destroyed, and Its bandwidth resource is released to the higher-priority LSP. The destroyed path has to be rerouted by selecting another LSP; the new LSP maybe quickly suffer another bandwidth resource preemption again. If this scenario occurs frequently, routers would be subjected to the superfluous overload, and the quality of delivering flow can not be guaranteed. In a previous Chin et al. (see IASTED CCN 2002) had proposed a new policy to avoid the preemption because of flow priority and load balancing in the MPLS networks. In this paper, the policy supports the end-to-end QoS in DiffServ-aware MPLS networks is discussed. Moreover, many simulations are done to compare the QoS of all service levels in DiffServ which constraint-based routed (CR) scheme includes the new policy of Chin et al. The simulation results indicate that adding our policy to CR is better then the traditional CR.
AB - In MPLS networks, the higher-priority LSP (label switching path) will preempt the resource of lower-priority LSP when its bandwidth resource is limited. At the time, the lower-priority LSP is destroyed, and Its bandwidth resource is released to the higher-priority LSP. The destroyed path has to be rerouted by selecting another LSP; the new LSP maybe quickly suffer another bandwidth resource preemption again. If this scenario occurs frequently, routers would be subjected to the superfluous overload, and the quality of delivering flow can not be guaranteed. In a previous Chin et al. (see IASTED CCN 2002) had proposed a new policy to avoid the preemption because of flow priority and load balancing in the MPLS networks. In this paper, the policy supports the end-to-end QoS in DiffServ-aware MPLS networks is discussed. Moreover, many simulations are done to compare the QoS of all service levels in DiffServ which constraint-based routed (CR) scheme includes the new policy of Chin et al. The simulation results indicate that adding our policy to CR is better then the traditional CR.
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U2 - 10.1109/ICTEL.2003.1191229
DO - 10.1109/ICTEL.2003.1191229
M3 - Conference contribution
AN - SCOPUS:29844451532
T3 - 10th International Conference on Telecommunications, ICT 2003
SP - 261
EP - 266
BT - 10th International Conference on Telecommunications, ICT 2003
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Telecommunications, ICT 2003
Y2 - 23 February 2003 through 1 March 2003
ER -