We have a location where the fiber connections are showing higher than recommended DB losses. I did not get the measurements back yet so I don't have the exact numbers. We are not fiber experts so we had someone come in to clean up the fiber ends, re-terminate them if needed, and test the fiber. The tech said a couple of things that I found odd. He said: If we have excessive loss on the fiber, that could cause fans to fail and the switch to overheat and get physically damaged. I could understand the connection being poor or erratic or even going down, but never thought it could damage the switch physically. When we connect 4 switches by fiber in sequence like - Switch1 <-> Switch2 <-> Switch3 <-> Switch4, he said it does not matter that the connections between switches are in spec. If the distance between Switch1 to Switch4 is greater than a specifications, then we will have issues. That sounded odd to me as well. Does this sound right, or should I be looking for another fiber tech?
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