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Grid Computing, Communication Protocol, Computer Networks, Performance

Using grid systems efficiently has to face many challenges. One of them is the efficient exchange of data between distant components exacerbated by the diversity of existing protocols for communicating participants. Grid computing will reach its vast potential if and only if, the underlying networking infrastructure is able to transfer data across quite long distances in a very effective manner. Experiences show that advanced distributed applications executed in existing large scale computational grids are often able to use only a small fraction of available bandwidth. The reason for such a poor performance is the TCP, which works only in low bandwidth and low delay networks. Several new transport protocols have been introduced, but a very few are widely used in grid computing applications, these protocols can be categorized in three broad categories viz. TCP based, UDP based and Application layer protocols. We study these protocols and present its performance and research activities that can be done in these protocols.