The z/OS® Media server may not be listening on the target LLA port. The TSM server will not continue the operation because the z/OS Media server connection can be established.
The operation fails.
Determine why the z/OS Media server connection cannot be established. Check to ensure the z/OS Media server is listening on the target IP address and port address. The protocol violation indicates an application is listening on the target HLA port, however the application program is not a z/OS Media server. Check the HLA and LLA values on the server definition.