A Distributed and adaptive framework for provisioning QoS in IPv6 networks |
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| Authors: | Hua-gang Shao Xiao Chen Wei-nong Wang |
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| Institution: | 1. Department of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China;Network Center, Shanghai Jiaotong University, Shanghai 200030, China
2. Network Center, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | A distributed and adaptive framework (DAF) was proposed for provisioning quality of service (QoS) in IPv6 network. In DAF, per-flow admission control and resource reservation, in conjunction with a new IPv6 flow label mechanism, can be performed instantaneously in a fully distributed and independent fashion at the edge of network without hop-by-hop signaling. The flow label helps in resource reservation and packets forward-ing for aggregated traffic on an edge-to-edge path basis. In addition, a bounded directional probing technique for DAF was designed to reconfignre resource reservation adaptively between every pair of edge router for ag-gregated traffic according to the fluctuation of its traffic load. The simulation results show that DAF provides QoS guarantees to individual flows with minimal overhead, as well as keeping the scalability characteristic like DiffServ. |
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| Keywords: | quality of service IPv6 integrated services (IntServ) differentiated services (DiffServ) admission control resource reservation |
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