nfsstat displays statistics kept about NFS client and server activity.
The options are as follows:
-c
Only display values for NFS client side.
-s
Only display values for NFS server side.
-M
Extract values associated with the name list from the specified core instead of the default /dev/kmem.
-N
Extract the name list from the specified system instead of the default /netbsd.
-w
Display a shorter summary of NFS activity for both the client and server at wait second intervals.