Integrated Anycast End-to-End QoS Routing on DiffServ Networks
碩士 === 銘傳大學 === 資訊管理學系碩士班 === 93 === Anycast is the point-to-point communication between a single client and the nearest destination server identified by an Anycast address in traditional best-effort networks such as the Internet. Contrarily, an Anycast service in a QoS- based network requires to ch...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2005
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| Online Access: | http://ndltd.ncl.edu.tw/handle/gmq949 |
| Summary: | 碩士 === 銘傳大學 === 資訊管理學系碩士班 === 93 === Anycast is the point-to-point communication between a single client and the nearest destination server identified by an Anycast address in traditional best-effort networks such as the Internet. Contrarily, an Anycast service in a QoS- based network requires to choose a path with bandwidth guarantees and to select a server with capacity guarantees. This paper proposes an architecture which integrates both network layer Anycasting service and application layer anyscasting service in order to select a path and server that satisfies the client QoS constrain in DiffServ networks. To perform a path selection algorithm, the proposed protocol uses the idea of residual capacity to select all paths which match the client bandwidth requirement. To perform the server selection process, each server resource manager (SRM) uses server weight of each server to select a best server that has sufficient capacity for the client request. Furthermore, the design of multiple SRMs eliminates the single point of failure problem and increases reliability in a DiffServ network. We will use simulation to compare the performances with other existing approaches.
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