Do you have an active support contract with NetApp?
"SSH is not a supported management protocol for E-Series devices. To manage the storage array, there is SANtricity for GUI based management or SMcli for the command line.
For support procedures, occasional Telnet or SSH access is required. However, it is not possible to use Telnet/SSH for day-to-day operations."
Nevertheless, I would try: default all and 115200 or 9600