During a NAS filer-to-server backup operation the TSM tape server failed to open a TCP/IP socket in order to listen for NDMP data connections from a NAS file server. This may occur if the network interface chosen for NDMP data connections is not running or does not support IP Version 4.
The TSM server backup operation of the file server fails.
Verify that the network interface specified in the NDMPPREFDATAINTERFACE server option is properly configured and running. .