A test method for analysing disturbed ethernet data streams

摘要

Ethernet connections, which are widely used in many computer networks, cansuffer from electromagnetic interference. Typically, a degradation of thedata transmission rate can be perceived as electromagnetic disturbances leadto corruption of data frames on the network media. In this paper asoftware-based measuring method is presented, which allows a directassessment of the effects on the link layer. The results can directly belinked to the physical interaction without the influence of software relatedeffects on higher protocol layers. This gives a simple tool for aquantitative analysis of the disturbance of an Ethernet connection based ontime domain data. An example is shown, how the data can be used for furtherinvestigation of mechanisms and detection of intentional electromagneticattacks.