Transport node status is showing as "Degraded"

Products

• VMware NSX

Issue/Introduction

• Transport node status is showing as Degraded in NSX UI however there is no impact in the environment. 
  
  • 
• All the tunnels are showing as up 
• In view Details->Monitor tab, we can see Bond/PNIC is showing as down
  
  
  

Environment

VMware NSX 
VMware NSX-T Data Center

Cause

Attached vusb under PNIC/Bond is showing as down. 

There are no physical network adapter attached to the vusb0 hence it is showing as down. 

Resolution

Remove the vusb attached to the transport node from vCenter ->Hosts and cluster->Select the affected host->Configure->Virtual switches.