SFP Not working

[Tidwellius]

I am working on doing upgrades from cisco 3850's to 9300's. Why do the SFP's (GLC-GE-100FX) that worked in the 3850 not work in my new 9300? Is there a command line I can use? Or is it just a firmware/hardware issue and new SFP's must be purchased?

[Reza Sharifi]

Take a look at the matrix. You need 16.8.1 or later version of IOS-XE

https://tmgmatrix.cisco.com/?npf=76

HTH

[M02@rt37]

Hello @Tidwellius,

You need ios XE 16.8.1 minimum on your C9300 to support SFP-GE-100FX

Reference: https://tmgmatrix.cisco.com/?npf=76