The original infrastructure of the Internet can no longer meet personalized and diversified demands of current increasing network subscribers . It has exposed many defects and shortcomings . For examples , the mechanism of using ports to distinguish services is inflexible and dangerous with the emergence of various services ; the current Internet architecture does not make use of the close relationship between network resources and services , but simultaneously maintains two processing systems for the resources and services respectively, wasting both subs cribers time and network resources ; the Internet class of s ervices granularity is not fine enough , failing to meet personalized and diversified user demands . In order to solve these problems , this paper discuss es the mechanisms and key technologies for pervasive services in the new- generation Internet. The paper focuses on the definition , classification and identifier design of personalized and diversified user services . The s ervice identifier design fulfills the unified identifier and processing of various network services , dis covers the close relationship between services and resources , and can offer personalized and diversified services according to users demands .

There exist serious problems in the trustworthiness (s ecurity, reliability, controllability and manageability) of the Internet. In order to solve these problems , a new- generation network architecture model, based on the research of the basic theories of new- generation Internet system, is proposed . The solution creates a switching routing model and theory for the new- generation Internet system, and defines the access identifier, generalized switching routing identifier and their mapping principles . It also establishes a pervasive s ervice system architecture and theory, defines the service identifier, connection identifier and their mapping principles . This paper discusses key technologies for the new- generation Internet system, such as access control and management, trusted routing and Quality of Service (QoS ), multi- streaming , and network monitoring and management.