In order to implement the differentiated,customized,quality of service(QoS) guaranteed service in IP DiffServ network,the layered service-oriented model for DiffServ is improved.

• 为了在区分服务(IP DiffServ)网络中实现有差别、可定制、有服务质量(QoS)保证的业务,改进了DiffServ分层业务模型;