Thank you for your post with regard to Ethernet and USB eye digaram testing. Our PicoScope 9000 series range of sampling scopes will be suitable in your application.
Designed specifically for the complex task of analysing high–speed electrical signals, PicoScope 9000 Sampling Oscilloscopes are ideal for many advanced applications including: signal analysis, timing analysis, testing and design of high–speed digital communication systems, network analysis, semiconductor testing, and research and development.http://www.picotech.com/picoscope9000.html
Please proceed to the following links to the fantastic PicoScope TV and specifically eye diagram testing using the 9000 series. There are several viedoes that you may find useful http://www.picoscope.tv/general/picoscope9000--eye-diagram.htmlhttp://www.picoscope.tv/general/picoscope9000.html
If you have any specific questions you can also contact firstname.lastname@example.org