UDP实现可靠数据传输。使用GBN算法，实现了：1.随即丢包(随机数产生器Math.random()) 2.丢包后遇冗余ack重传 3.超时重传 (DatagramSocket和Socket都有成员函数setSoTimeout(delay),通过捕获超时时抛出的IO异常来实现超时重传)-Reliable UDP data transfer. GBN algorithm used to realize: 1. Then packet loss (random number generator Ma

AIM: Transferring data from sender to receiver with out any packet loss. Intimate user whether the packets are delivered after he sends data to the router. Intimate when the buffer at the router is full or busy or free there by avoiding retrans