What does a blinking red light mean next to a port on a Brocade VDX 6420? seenagape 10 years ago What does a blinking red light mean next to a port on a Brocade VDX 6420? A.The port is not licensed. B.The port is not in the fabric. C.The SFP is not present. D.The SFP has failed. ← Previous question Next question →