The article provides a measurement methodology based on the related RFCs. It brings a solution of determining the switching latency on
the physical layer using common measuring devices. As a proof of concept were done a number of the experimental measurements, including
analysis of the results. Switching latency is an important performance parameter which participates in the decision-making whether to deploy the
switch to low-latency environments. This is especially important in industrial networks for real-time systems involving smart grids. Determine the
value of the switching latency is also an important step in the eventual deployment of the OpenFlow technology on this field.Scopus897635
