Network emulation is significant because of its ability to study network architecture running on real operating system and the whole protocol stack. However, conservatively allocating a physical network equipment for a corresponding emulation network is costly, scale-limited and rigid. In this paper, based on network function virtualization (NFV), we present a large-scale emulation platform for the Smart Identifier Network (SINET). We pool and virtualize all hardware resources by lightweight virtualization technology. Controllers and orchestrators are designed to manage emulation and collect monitored SINET emulation results. The controllers are used to implement dynamically synchronously management for large-scale emulation network and link characteristics. The orchestrators are utilized to achieve overload avoidance and green computing with the Xiao’s dynamic resource allocation algorithm. We implement flexibly programmable and dynamically configurable emulation.

With shortcomings in its original design, the Internet is limited in its capacity to meet increasing demands from ubiquitous mobile users. This paper discusses a new architecture for ubiquitous mobile Internet as well as the models and theories of its two layers. The infrastructure layer allows users to access the Internet anywhere, anytime, and by any means, while the pervasive service layer supports a variety of services. This paper proposes a mobility management mechanism under the new architecture. Experimental results show that this new network architecture overcomes the shortcomings of the existing Internet, satisfying demand for ubiquitous mobile service.

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.