Network Pool modification for existing domains in SDDC Manager

Products

• VMware SDDC Manager / VCF Installer
• VCF Operations
• VMware vSphere ESXi

Issue/Introduction

This article provides instructions for migrating deployed ESXi hosts to a new network segment following changes to the datacenter architecture. Use this guide to update key management network parameters, including the IP address, subnet mask, and default gateway, to comply with the updated infrastructure design.

Environment

• VMware Cloud Foundation (VCF) 5.x
• VMware Cloud Foundation (VCF) 9.x

Cause

After a network pool is configured and assigned to the Management and Workload Domain, it can no longer be edited or modified.

Resolution

The recommended resolution requires a complete redeployment of the Workload Domain, which involves the following steps:

Note : Take a Snapshot and/or Backup of SDDC Manager before making any changes.

1. Delete the existing Workload Domain by following the procedure outlined in Delete a VI Workload Domain.
2. Remove the associated Network Pool from the SDDC Manager UI by following Delete a Network Pool.
3. Decommission the ESXi hosts that were part of the Workload Domain by following Decommission Hosts.
4. Create a new Network Pool in SDDC Manager by following Create a Network Pool.
5. Update the physical network routing and configuration, and then redeploy the ESXi hosts to ensure connectivity with the new IP address range.
6. Commission the ESXi hosts back into SDDC Manager by following Commission Hosts.
7. Create a new Workload Domain using the newly commissioned hosts by following the procedure in Deploy a VI Workload Domain Using the SDDC Manager UI.

If deleting the existing Workload Domain is not feasible in a Production Environment, reach out to Broadcom Support.