Hi hemmerling,We had a similar problem some months back with C9300-48U model. The switch came preloaded with IOS-XE 17.06.03 and it was not recognizing Cisco SFPs. We had to upgrade the code to 17.06.05 to resolve the issue, I would suggest you upgra...
I am having a similar problem, we just bought a C9300-48U switch running IOS-XE 17.06.03, it has an C9300-NM-4G network module. We inserted a GLC-LH-SMD SFP and the port does not recognize the SFPs. Have you been able to resolve the issue, or do we c...