With the improvement of the performance of all components of computers ,Shared Bus, which is the kernelof the traditional computer architecture,has gradually become the bottleneck of the system. This paper presents thelimitations of the Shared Bus. From analyzing the new specifications of the bus ,which are used to solve the bottleneckbrought by shared bus ,it sums up the characteristics of the new technologies from their orientations in the level of thearchitecture. Then by analyzing and comparing the advantages of each new technology ,this paper points out the neworientation of the bus technology.
Infiniband Architecture is a new,network-centered,switch-based network technology. It is mainly designed for Internet Data Center. Abandoning the share bus technology,IBA carries out the redundant connections among network ,storage and servers by a group of switches. By the mechanism provided by IBA,the data in the buffers of the two processes ,which are in different nodes on the network ,can be exchanged ,reducing the overhead of the traditional network protocol,minimizing the switch of the context and promoting the performance of the system. This paper presents the current problem faced by cluster. We mainly stress the analyzing and the research of the topology and the mechanism of communication of IBA. At last,we talk about our next work on the research of this technology in this paper.
