Creating a segment on the NSX-T Manger is it not displayed on vCenter

Products

• VMware NSX

Issue/Introduction

• When creating a segment on the NSX-T Manger is it not displayed on vCenter.
• Checking the NSX manager log file in /var/log/proton/nsxapi.log you see the below ERROR

  2024-09-23T12:22:39.721Z ERROR LogicalSwitchStateOperationScheduler1 NsxPortgroupExecuteVcUtils 5140 SWITCHING [nsx@6876 comp="nsx-manager" errorCode="MP9538" level="ERROR" subcomp="manager"] Could not find the HostSwitch [ ## ## ## ## ## ## ## ## ## ## ## ## ## ## ##] of type VDS

   

Environment

VMware NSX,VMware NSX-T

Cause

The ESXi (transport nodes) that were previously functioning and later decommissioned were not removed from NSX-T.

Resolution

This is a condition that may occur in a VMware NSX environment.

Workaround :

• In the NSX-Ui navigate to  System > Hosts > Standalone and remove the decommissioned  Hosts using a DELETE NSX and the  “Force Delete” option 
• Now Confirm in the vCenter UI(Home > Inventory > Networking)  that the segment is created