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.
