Network performance tool using the TCP protocol

 NetPIPE is a protocol independent performance tool that encapsulates
 the best of ttcp and netperf and visually represents the network
 performance under a variety of conditions. By taking the end-to-end
 application view of a network, NetPIPE clearly shows the overhead
 associated with different protocol layers. NetPIPE answers such
 questions as: how soon will a given data block of size k arrive at its
 destination? Which network and protocol will transmit size k blocks
 the fastest? What is a given network's effective maximum throughput
 and saturation level? Does there exist a block size k for which the
 throughput is maximized? How much communication overhead is due to the
 network communication protocol layer(s)? How quickly will a small (< 1
 kbyte) control message arrive, and which network and protocol are best
 for this purpose?
 .
 This package uses a raw TCP protocol to measure network performance.