https://www.cisco.com/c/en/us/td/docs/dcn/mds9000/sw/9x/configuration/licensing/cisco-mds-9000-nx-os-licensing-guide-9x/m_licensing_cisco_mds_9000_family_nx-os_software_features.html
Cisco MDS 9000 Series Licensing Guide, Release 9.x - Licensing Cisco MDS 9000 Series NX-OS Software...
Licensing Cisco MDS 9000 Series NX-OS Software Features
cisco mdsseries licensing