Hi guys ! I've watched the video called Layer 1: Interfaces and Cabling and the instructor told to take care to buy cable SFP (Small Form Pluggagle) because almost of them are not supported by Cisco. I bought two cable SFP from different vendors via Mercado Livre (ebay from LATAM) and when I plug the cable in the port SFP in front of switch, the following message appear :
%GBIC_SECURITY_CRYPT-4-ID_MISMATCH: Identification check failed for GBIC in port Gi3/0/1.
Is there any software ios update to keep compatibility ? or unfortunately these cable are not going to work? Where I can buy a official cable and I make sure that it will work ?