被动测试和主动测试的研究

协议测试对于保证协议实现的正确性起着至关重要的作用．现在研究较多的测试方法是主动测试,被动测试则是一种新兴的测试方法．对两种测试思想进行比较，提出了将两者结合以获得更好测试质量和测试效率的算法，即先对IUT进行被动测试．通过测试收集一些有用的启发式信息．然后再将这些信息用于指导后续的主动测试，此算法已被用于BGP协议的测试，实验证明该算法可以提高主动测试效率。

Research of Passive Testing and Active Testing

Protocol testing plays an important role in guarantying the correctness of protocol implementations. Active testing has been fully studied in the past. Passive testing, a new approach for testing, arises these years. This paper compares the two approaches and then proposes an algorithm to combine them in order to get better quality and efficiency in protocol testing. The main idea of the algorithm is to perform passive testing on IUT first, through which we can collect some helpful information that can be used to guide the following active testing. The algorithm has been used for the protocol testing for BGP, and the experimental results show that our algorithm is helpful in improving the efficiency of protocol testing.