Two C9200L-48P-4G Stacking fiber issue

[hawkb]

Hello community：

     I'm having some problems when stacking two C9200L-48P-4G switch 

     The stacking works fine but when fiber module is attached and linked to another C9200L-48P-4G switch，it doesn't work，even won't be recongnized

      Use the same fiber modules to link two separated C9200L-48P-4G works totally fine，so it may not be the fiber module's problem

      Did I messed up something when stacking？

       Thanks，Best Regards！

[balaji.bandi]

what is the IOS XE code ? can you post  below output

show version

show stack

show module 

 show run interface  x/x

show interface x/x

[hawkb]

Hi，thanks for reply

       Sorry but the switch may not be reachable now，we accepted an alternative solution

       The configuration I can remeber is that IOS XE version should be 17.3.5,only switchport mode trunk was configured on g1/1/1

[balaji.bandi]

If you still looking for some assistance, when you get a chance post the information requested and have access to switch.