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...
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
