All TEP tunnels down to ESXi host transport nodes after physically moving ESXi servers

Products

• VMware NSX

Issue/Introduction

• Existing ESXi hosts physically moved and connected to new ports on upstream physical switches. 
• ESXi Management vmkernel is reachable on a VLAN backed port group on the NSX switch. (Other vmkernel services like vMotion, vSAN, etc. are also working on VLAN backed port groups) 
• vmkping from TEP vmkernels (vmk10/11) are unable to reach TEPs on any other host or Edge transport nodes. 

Environment

• VMware NSX

Cause

Other services on VLAN backed port groups working indicates that there is a missing VLAN in the trunk ports on the upstream physical switch stack. 

Resolution

Check that the "Transport VLAN" in the Uplink Profile used by these hosts in NSX (System > Fabric > Profiles > Uplink Profiles) is included in the trunk configuration on the upstream physical switch ports connected to the ESXi host.