In order to increase the performance of TCP ( Transport Control Protocol ) in networks with long propagation delay and high link error rates detection unit scheme an active and self_ adaptive scheme has been involved in many implementations for TCP improvement .

为提高 TCP协议在长 时延、高差错率网络中的性能，探测 元机制做为一种主动自适应机制，在TCP的许多改进实现中被涉及。