Source-interface vlan config is required at this c9800?

[Leftz]

Hi WLC C9800 need to add several vlans. I am not sure Source-interface vlan is required for dhcp function or something else. Please see the below picture. If we do not configure it, what would happen? Thank you

[Scott Fella]

Is your plan to add vlans or add SVI’s. If you are just trunking vlans, then just add the vlans like you would do on a switch from the cli.