A Parallel Strategy for Measuring Network Bandwidth

For the most advanced storage system which is still in study, the high-speed network bandwidth is a key target of the system. And the measurement on the super-high network bandwidth is one of the most important works in the process of evaluating the completely new developed massive storage system. However, sometimes we can´t find a single node available to produce sufficient load to test such a high-speed bandwidth, with this situation of single node´s limitation, based on TCP protocol, we propose a new and simple strategy, which uses multiple nodes to produce high bandwidth load by constructing a cluster, to test the high-speed bandwidth parallelly. This paper demonstrates the feasibility of this strategy and analyzes main parameters of TCP protocol which affect the link bandwidth significantly by a series of experiments, at last we also put researches on the performance boost of bonding NICs with multiple NICs in single node. Finally, we give a solution to implement the high-speed bandwidth measurement.