说明： 美国加利福尼亚大学开发的一个基于mtrace和rtcp来监控组播网络的程序，名称为mhealth，java实现在solaris下。windows下可能需要改一点mtrace的调用目录吧 (the University of California based on the development of a MTrace and RTCP multicast network to monitor the procedure, known as mhealth, java achieve under the solaris. Windows may need to change 1:00 MTrace call it CONTENTS)
