SPx Network Packet Recorder

The SPx Network Packet Recorder (NPR) is a software application for Linux or Windows that captures, time-stamps and records TCP and UDP packets from 1, 2, 4 or 8 input streams. Data is recorded to a hard disk and may be replayed through the software to recreate the original network packets. The recorded file format preserves the time information of the captured data and allows the data to be replayed (either locally or on another system) to faithfully recover the timing information in the original data.

SPx NPR does not interpret the data packets, so any TCP or UDP packets may be captured, recorded and replayed. Orginally developed to record network data streams from radars, the application has found applications in a range of data recording applications, either as a stand-alone utility (a command-line program to initiate the recordings and replay) or as a developer's library for inclusion in a larger recording solution.

As well as preserving the time information, SPx NPR also stores source/destination address and port numbers, allowing the stream to be automatically recreated at playback, or optionally re-routed to different addresses and/or ports. SPx NPR can record any number of TCP, multicast UDP or unicast UDP, subject to system resources.

SPx NPR is not a "TCP snooping" recorder, i.e. it cannot record a TCP stream between a server and a client.  For TCP, it needs to act as the client, so the recorder needs to actually connect to a server (e.g. a radar) and read data from it. 

SPx NPR optionally compresses the network packets using ZLib to reduce the recorded file size.

Contact us to request a data sheet.