TY - JOUR
T1 - An end-to-end QoS framework with on-demand bandwidth reconfiguration
AU - Yang, Mei
AU - Huang, Yan
AU - Kim, Jaime
AU - Lee, Meejeong
AU - Suda, Tatsuya
AU - Daisuke, Matsubara
N1 - Funding Information:
This work was supported by the National Science Foundation through grants ANI-0083074 and ANI-9903427, by DARPA through Grant MDA972-99-1-0007, by AFOSR through Grant MURI F49620-00-1-0330, by Basic Research Program of KOSEF through grant R04-2000-000-00078-0 and by grants from the University of California MICRO and CoRe Programs, Hitachi, Hitachi America, Novell, Nippon Telegraph and Telephone Corporation (NTT), NTT Docomo, Fujitsu, and NS-Solutions.
PY - 2005/11/1
Y1 - 2005/11/1
N2 - This paper proposes a new QoS framework, called the On-Demand QoS Path framework (ODP). It provides end-to-end QoS guarantees to individual flows with minimal overhead, while keeping the scalability characteristic of DiffServ. ODP exercises per-flow admission control and end-to-end bandwidth reservation at the edge of the network and only differentiates service types in the core of the network. In addition, to adapt to dynamically changing traffic load, ODP monitors the bandwidth utilization of the network and performs dynamic bandwidth reconfiguration in the network core based on the monitored bandwidth utilization. Through extensive simulations, the performance of ODP is investigated and compared with that of IntServ and DiffServ frameworks. The simulation results clearly showed that ODP provides end-to-end QoS guarantees to individual flows, which DiffServ can not provide, with much less overhead than IntServ.
AB - This paper proposes a new QoS framework, called the On-Demand QoS Path framework (ODP). It provides end-to-end QoS guarantees to individual flows with minimal overhead, while keeping the scalability characteristic of DiffServ. ODP exercises per-flow admission control and end-to-end bandwidth reservation at the edge of the network and only differentiates service types in the core of the network. In addition, to adapt to dynamically changing traffic load, ODP monitors the bandwidth utilization of the network and performs dynamic bandwidth reconfiguration in the network core based on the monitored bandwidth utilization. Through extensive simulations, the performance of ODP is investigated and compared with that of IntServ and DiffServ frameworks. The simulation results clearly showed that ODP provides end-to-end QoS guarantees to individual flows, which DiffServ can not provide, with much less overhead than IntServ.
KW - Admission control
KW - Bandwidth management
KW - DiffServ
KW - End-to-End QoS
KW - IntServ over DiffServ
UR - http://www.scopus.com/inward/record.url?scp=26844500723&partnerID=8YFLogxK
U2 - 10.1016/j.comcom.2004.07.029
DO - 10.1016/j.comcom.2004.07.029
M3 - Article
AN - SCOPUS:26844500723
SN - 0140-3664
VL - 28
SP - 2034
EP - 2046
JO - Computer Communications
JF - Computer Communications
IS - 18
ER -