Manage FC/FCoE and NVMe adapters with System Manager - ONTAP 9.7 and earlier
You can use ONTAP System Manager classic (available in ONTAP 9.7 and earlier) to manage FC/FCoE and NVMe adapters.
Edit the FC/FCoE and NVMe adapter speed settings
You can modify the FC/FCoE and NVMe adapter speed settings by using the Edit FC/FCoE and NVMe Adapter Settings dialog box in System Manager.
Click Network > FC/FCoE and NVMe Adapters.
Select the adapter that you want to edit, and then click Edit.
In the Edit FC/FCoE and NVMe adapter settings dialog box, set the adapter speed to Manual or Automatic, and then click Save.