Cisco Nexus ERROR MSG - SFP Validation Failed

I came across the other day when I was bringing up a new connection on a Cisco 3548 Nexus.

"SFP validation failed"

This happens when the speed is set on an interface and the SFP does not support it. To fix it get into interface config mode and type.

 switchport host
 shut
 no speed
 no duplex
 no shut

Many more articles to come so ....

Please subscribe/comment/+1 if you like my posts as it keeps me motivated to write more and spread the knowledge.