[VMC on AWS] HCX Interconnect tunnel shows Status DOWN if uplink and vMotion are configured as the same network profile

Products

• VMware Cloud on AWS

Issue/Introduction

This article provides information on how to resolve issues if HCX Interconnect tunnel is DOWN.

Symptoms:

• Communication from HCX Interconnect appliances is disrupted or unavailable if uplink and vMotion are configured as the same network profile in a compute profile.
• IPSec tunnel traffic doesn't go through uplink interface.

Cause

If the network profile for uplink is shared with vMotion, IPSec tunnel traffic goes through the management interface. As a result, the Interconnect tunnel will be DOWN if the management interface can't communicate with HCX appliances on VMware Cloud on AWS.

Resolution

Create separate network profiles for each function(uplink and vMotion).