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软件学报  2002 

A Classified Pre-Computed QoS Routing Algorithm
一种分类预计算QoS路由算法

Keywords: service mode,QoS routing,algorithm,multiple object programming
服务模式
,QoS路由,算法,多目标规划

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Abstract:

In order to satisfy the quality of service (QoS) of the application on Internet, Internet engineering task force (IETF) has presented a set of network service mode such as IntServ/RSVP (Integrated Service/Resource Reservation Protocol), DiffServ (differentiated service) and MPLS (multi protocol label switching). All of these service modes need a correlative QoS routing mechanism and algorithm to assign an adapted route. Based on the research of existing routing algorithms, a new pre-computed QoS routing algorithm CCPF(classified minimum cost path first)is put forward,which uses bandwidth as a basic metric and gives a weighted cost function as a path optimal criterion.By simulation,this algorithm is compared with the others.The results show that it can get differet routes among different bandwidth-ranges to support multipl service modes.

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