Hey there! Seeing some weird UDLD issues with a MS130R switch that we have at one of our sites also. Worked extensively with Meraki support, we troubleshot all layer 1/2 issues. I put a MS120-8 port switch in place while Meraki sent a new MS130R. That temporary switch had no issues at all, no UDLD errors. I get the new MS130R, put it in, UDLD issues and switch goes down, I'd say every 6 hours to a day or so. Engaged support again, but they are looking at layer 1 issues again. Kind of starting to think the MS130(R) ruggedized switches may have a manufacturer defect or something. Next step for us is to install MS120 again and perhaps move the MS130R to our main stack and connect via fiber there. If it drops there too I would be extremely confident there is no layer 1/2 issues, and we're looking at faulty equipment DOA from Meraki. Our uplinks are 1G fiber, SFPs appear to be on the compatible list for the switches. Any luck with TAC on your case?
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