Date Added: Aug 2011
The initial start-up performance of TCP largely depends on two parameters - ssthresh and cwnd. When these values are not accurate, TCP cannot utilize the bandwidth fully or may generate multiple packet drops. Unfortunately, estimating these parameters is not easy since little network state information is available for the TCP connection initially. From earlier research, a TCP parameter of a previous connection with the same destination was suggested to be used for a new TCP connection. However, the effectiveness of this method is limited since the cached parameter of single destination is used. As another attempt, a network monitor was adopted to identify the connections sharing the same subnet, and an averaged parameter of those connections was used for a new TCP connection.