Design And Implementation Of A Transparent Inter-domain Communication System With High Performance

In recent years, virtualization technology's benefit is becoming increasingly conspicuous in server consolidation, software development, test environments, disaster recovery and so on. Now, it has become a hot issue of academic circles and industry. However, it is rather difficult to exchang information and transmits data between two VMs (virtual machines) becuase of the VMs isolation barrier. Especially in the virtual network environment, data transmission is not through the real native network devices but virtual network devices. As a result, it is more difficult to ensure data quality, and the network itself is susceptible to be attacked.In order to improve the performance of the inter-domain data transmission, this paper focuses on the inter-domain communication of virtual mechines. The main achievements of this work consist of three aspects:Firstly, this paper describes the classic solutions to VMs inter-domain communications, and analyzes their advantages and disadvantages. And then on the basis of the analysis, this paper proposes three goals of a good inter-domain communications system:efficiency, transparent and binary compatibility.Secondly, this paper borrows the basic ideas of dynamic link library, provides a basic thought of VMs inter-domain communication system, and descirbes the necessity of implementing dynamic virtual mechine findings.Finally, this paper presents a transparent high performance inter-domain communication system, which is called VSI (Virtual Socket Interpreter), deals with the inter-domain communication problem effectively. With the help of the dynamic VM findings, this system makes a fully mapping between the TCP/IP protocols and VMCI protocols on the basis of the ideas of dyanamic link library. Consequently, the inter-domain communication potential is fully exploited, and the data transmission utilization is greatly improved. The system tests and experiments show that VSI system efficiently improves the transmission bandwidth, and its transmission delay is almost equal to the TCP/IP transmission mode's. According to the tests of the third-party benchmark, it is shown that VSI has a good compatibility.