NSX Edge Nodes Degraded with fp-eth TEP Uplinks Down During VPC Deployment

Products

• VMware NSX

Issue/Introduction

During the deployment of Virtual Private Clouds (VPCs) in a consolidated management/workload architecture, deployed NSX Edge nodes transition into a degraded state. One of more Tunnel Endpoint (TEP) uplinks on the Edge nodes drop offline and go down. This issue occurs after completing the network connectivity prerequisites, specifically when newly created trunked VLAN segments fail to present their backing port groups to the Edge interfaces, causing a loss of connectivity on the affected TEP interfaces.

Symptoms:

• NSX Manager UI displays an alert stating that the Edge Transport Nodes are in a Degraded or Down fabric status.
  
  
• Tunnel Endpoints Status showing Down in NSX UI
  

• Edge cluster showing Degraded in Network connectivity in vSphere UI

  

Environment

VMware Cloud Foundation 9

VMware NSX

Cause

The Transport Node Profile (TNP) applied to the host cluster does not contain the default nsx-vlan-transportzone  default on the host switch configuration. Because the host switch profile is not participating in the required VLAN transport zone, the trunked VLAN segment port groups cannot be instantiated or made available for assignment to the Edge node interfaces, causing the TEP uplinks to fail.

Resolution

To resolve this issue, add the missing VLAN transport zone to the Host Transport Node Profile and redeploy the affected Edge nodes:

1. Log into the NSX Manager user interface.
2. Navigate to System > Fabric > Profiles > Transport Node Profiles.
3. Select the active Transport Node Profile applied to the cluster and click Edit.
4. Locate the Host Switch configuration within the profile.
5. Append the default nsx-vlan-transportzone to the transport zone bindings on the host switch.
6. Save the profile configuration and verify that the status changes to Success across the host transport nodes.
7. Navigate to System > Fabric > Nodes > Edge Nodes.
8. Select the degraded Edge nodes, click the Actions dropdown menu, and select Redeploy Edge to clear the interface binding faults.