X690-48x-2q-4c.4 # 
X690-48x-2q-4c.4 # configure ports 69 partition ?
  1x100G          Partition 100G  port into one 100G port
  1x40G           Partition  40G  port into one  40G port
  2x50G           Partition 100G  port into two  50G ports
  4x10G           Partition  40G  port into four 10G ports
  4x25G           Partition 100G  port into four 25G ports
X690-48x-2q-4c.4 # 
X690-48x-2q-4c.4 #configure ports 69 partition 4x10G
Warning: Configuration will be lost on ports 69
         No configuration changes should be made on these ports until after
         the next reboot.
This command will only take effect after save configuration and reboot.

Are you sure you want to continue? (y/N) Yes
* X690-48x-2q-4c.5 # 
* X690-48x-2q-4c.3 #  save 
The configuration file primary.cfg already exists.
Do you want to save configuration to primary.cfg and overwrite it? (y/N) Yes
Saving configuration primary.cfg  on master .... done!
Configuration saved to primary.cfg successfully.
X690-48x-2q-4c.7 # reboot 
Are you sure you want to reboot the switch? (y/N) Yes