在分析了现有迁移策略的基础上,提出一种改进的基于迁移计划图的结构化迁移策略。该迁移策略能根据当前网络的软硬件环境及其他负载信息,在满足预算约束条件下考虑服务质量和服务价格等因素,动态地为移动Agent规划出一条最佳迁移路径;该策略还能避免网络断连、主机故障及服务失效引起的迁移失败。
After analyzing some representative migration strategies, the paper presented an improved structured migration strategy of mobile Agent based on itinerary graph. The strategy can effectively perceive .the changes of network environment and dynamically choose the best migration path based on these'changes and eonstraint condition. The strategy also avoids migration failure caused by network disconnection and computes node crashing and service invalidation.