Netperf工具以client/server方式工作。server端是netserver，用来侦听来自client端的连接，client端是netperf，用来向server发起网络测试。在client与server之间，首先建立一个控制连接，传递有关测试配置的信息，以及测试的结果；在控制连接建立并传递了测试配置信息以后，client与server之间会再建立一个测试连接，用来来回传递着特殊的流量模式，以测试网络的性能。-Netperf tools for client/server mode. end server is netserver, listens for connections　the client side, client side is netperf, used to initiate the network test server. Between client and server, first establish a control connection, transmission of information about the test configuration and the results of the test　the control connection is established and passed the test configuration information in the future, will be to establish a test connection between client and server, with passed back and forth to a special traffic patterns to test network performance.