GridSphere是在欧盟提供基金的GridLab项目下开发的，提供了一个非常复杂的门户，该门户为各种终端用户提供高度定制的环境。-GridSphere in the EU to provide funds GridLab projects under development, provides a very sophisticated portal, which provides highly customized for a variety of end-user environment.

NS2仿真中计算端到端延时的程序代码，以及解析-completic the time end-to-end of in ns2 simlator