Wired Intelligent Edge (Campus Switching and Routing)

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Burst of receive errors on an interface

I have an S2500-48 switch stack in an IDF that uplinks over a fiber connection to the MDF in the building - the MDF is also a stack of S2500 switches. Today I saw a sudden burst of receive errors reported on the uplink between the IDF and MDF switch stacks. It seemed to happen pretty quickly and go back to normal. Any ideas on what might cause such an occurrence? This topology is in a middle school building and both the IDF and MDF switch stacks connect end-stations, APs and VoIP phones. The link between them is multi-mode fiber.