In VMware NSX for vSphere 6.x, virtual machines located behind an NSX Edge Services Gateway (ESG) deployed using vRealize Automation 6.x multi-machine blueprint are unreachable

Products

• VMware NSX

Issue/Introduction

Symptoms:

• Connectivity to virtual machines located behind an VMware NSX for vSphere 6.x Edge Services Gateway (ESG) fails
• Running the show interface command for the vNIC interfaces on the NSX Edge reports entries similar to:
  
  2: vNic_0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
  link/ether X:X:X:X:X:X brd ff:ff:ff:ff:ff:ff
  inet x.x.x.x/24 scope global vNic_0
  5: vNic_1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000

Environment

VMware NSX for vSphere 6.4.x
VMware NSX for vSphere 6.1.x
VMware NSX for vSphere 6.3.x
VMware NSX for vSphere 6.2.x

Cause

The line protocol down on an Edge vNIC interface indicates that the interface is disconnected from the back-end layer-2 switch. This issue is known to occur when the Edge VM is deployed before host preparation completes or the switch completes initialization.

 

Resolution

Use the following steps to troubleshoot this issue:

• Investigate a VXLAN or host preparation configuration issues. For more information, see:
  • VMware NSX for vSphere 6.x Edge loses connectivity after upgrade with the error: The requested object could not be found (2121733)

• Confirm the switchport configuration.
• Capture the Edge Diagnostic information. For more information, see Collecting diagnostic information for VMware NSX Edge (2079380). Contact VMware Support for further assistance. 

Additional Information

Collecting diagnostic information for VMware NSX Edge

VMware NSX for vSphere 6.x Edge loses connectivity after upgrade with the error: The requested object could not be found