Network-I comprises a fast sniffer with a powerful filtering language, and a suite of tools to process the captured packets.
The possibilities range from the straightforward display of packets in exhaustive detail (or alternatively, in a 1-line summary mode) to measurement of traffic levels, and reporting on packet retransmission and losses.
It can also import (and export) Capture files in tcpdump and Snoop formats.
Network-I is therefore ideal for a troubleshooting network admin, and developers who want to debug the network traffic exchanged by their applications - or even for the curious student of networking who wants to look under the hood of TCP/IP.
This program is distributed as a set of pre-built Linux and Solaris packages, for ease of installation (and uninstallation).