Your customer recently upgraded their IP switch hardware. Since the upgrade, the customer
is experiencing performance degradation on certain NFS exports configured on a VNX for
File storage system. The file systems providing the problem exports are all mounted to
DataMovers that have been attached to ports on the new switches as part of the upgrade.
They have engaged you for advice. Which action would you recommend?

A.
Check for duplex mismatch

B.
Change MTU size

C.
Change write-aside value

D.
Check for speed mismatch