todo:- check out this package

Available Packages
Name : nuttcp
Arch : x86_64
Version : 5.5.5
Release : 3.fc12
Size : 54 k
Repo : fedora
Summary : Tool for testing TCP connections
URL : ftp://ftp.lcp.nrl.navy.mil/pub/nuttcp/
License : Public Domain
Description: nuttcp is a network performance measurement tool intended for use by
: network and system managers. Its most basic usage is to determine the
: raw TCP (or UDP) network layer throughput by transferring memory buffers
: from a source system across an interconnecting network to a destination
: system, either transferring data for a specified time interval, or
: alternatively transferring a specified number of buffers. In addition
: to reporting the achieved network throughput in Mbps, nuttcp also
: provides additional useful information related to the data transfer
: such as user, system, and wall-clock time, transmitter and receiver
: CPU utilization, and loss percentage (for UDP transfers).