Refer to the exhibit.
A customer is having problems with NPV. Which of these is the cause of the problem?
A. No server was requested or received by the FLOGI database.
B. One external link must be up for server interface to be up.
C. Internal links are down and must be up for the server interface to be up.
D. VSANs are misconfigured on the upstream ports.
E. VLANs are misconfigured on the upstream ports.