Add Edge Cluster option disabled in brownfield deployment - VMware SDDC Manager

Products

• VMware SDDC Manager / VCF Installer
• VMware Cloud Foundation

Issue/Introduction

The system displays the following behaviors in the SDDC Manager UI:

• The Add Edge Cluster option is grayed out or inaccessible.
• The UI displays the error: This operation is not allowed because domain #### does not have NSX deployed with Overlay configuration.
• Staging or synchronization attempts via the VCF brownfield import tool may fail with generic guardrail validation errors.

Environment

VMware Cloud Foundation 5.2.x

Cause

This is expected behavior in brownfield-deployed VCF environments. During the import process, although the NSX Manager is integrated, virtual networking details such as host-level NSX installation and overlay network status are not automatically synchronized into the SDDC Manager inventory.

Resolution

Perform a manual virtual networking synchronization to update the SDDC Manager database.

1. Connect to the SDDC Manager appliance via SSH using the vcf user account.

2. Switch to the root user: su -


3. Navigate to the VCF import tool directory: cd /opt/vmware/vcf/domainmanager/scripts/vcf-import-tool/


4. Execute the synchronization command, replacing <DOMAIN_NAME> with the specific name of the management or workload domain: python3 vcf_brownfield.py sync --domain-name <DOMAIN_NAME>

Note: If the above steps did not help to fix the issue, Please contact VMware support for additional assistance and reference this KB in the support request.

Additional Information

For more detailed guidance on preparing imported domains, refer to VMware Cloud Foundation: Enabling Virtual Networking on Imported Workload Domains.