We've found it very handy to specifically count Frame Check Sequence errors on interfaces. They generally mean the network cable needs re-seating or replacing and have a high signal/noise ratio in terms of indicating an actual problem.
This has been tested on several Dell N4064 switches running 6.1.x, 6.2.x, and 6.3.x firmware over several months.
We've found it very handy to specifically count Frame Check Sequence errors on interfaces. They generally mean the network cable needs re-seating or replacing and have a high signal/noise ratio in terms of indicating an actual problem.
This has been tested on several Dell N4064 switches running 6.1.x, 6.2.x, and 6.3.x firmware over several months.