The definition of the GVT and the difference from LBTS were introduced, and then the transient message problem was analyzed and a simple synchronous GVT algorithm was provided.

• 文章首先介绍了GVT的定义，紧接着讨论了它与LBTS的区别，其次分析了瞬间消息问题及其解决途径，在此基础上提出了一种简单的同步GVT算法。