A passive round trip time (RTT) estimate algorithm called PRE (passive RTT estimate) is proposed for the traffic monitor devices to estimate RTT of TCP connections in the broadband network.

• 提出了一种应用于宽带网络环境的被动式环回时间(RTT)测量算法；用于对传输控制协议(TCP)的报文环回时间进行估计.