In a SDDC project the customer is requesting to rename the vLANS and vSphere vCenter Portgroups. Since the costomer is using NSX-T Datacenter the place to perform this rename is actions is the NSX-T Datacenter Manager console. The location where you can find this information is under Network>Segments. Or via the API.
Lees verder vSphere vCenter and NSX-T, Portgroup and Segment inventory out of sync