HCX MON Toggle switch is missing

Products

• VMware HCX

Issue/Introduction

• HCX Mobility Optimized Network option to enable MON feature is missing on the HCX hybridity page UI.
• HCX Enterprise License is activated and valid.

 

Environment

HCX 4.9.1 or earlier.
NSX 4.x

Cause

This is due to a flag change in the NSX overlay segments

Resolution

The issue is resolved in HCX version 4.10. 

Workaround for HCX 4.9.1 or earlier:

Steps to enable MON using API. 

• Log in to HCX hybridity page and navigate to Network Extension.
• Open the developer tools on the browser.
• Select Network -> XHR and l2E from the name window and collect the information from the Response tab related to the L2E that MON needs to be enabled. 
• Copy the whole response output to a "Notepad ++" and search for the VLANID and its corresponding stretchId that you want to enable MON.

 

• Follow the article below to get the x-hm authorization token that will be required to authorize the API tasks in the HCX API explorer.Create an x-hm-authorization token. 

Next, use the Update Network Extension API to enable/Disable the MON.

• Navigate to Network Extension API in the HCX API explorer using the following URL: https://<hcx-FQDN>/hybridity/docs/index.html
• Select the HCX Connector from the drop down.
• Select Network Extension as shown in the screenshot below
• Replace api.example.com with the ip or FQDN of the HCX manager
• Go to Authorize, select PUT, and click Try it out.
• Click on Authorize and key in the x-hm authorization token.
• Fill out the information(All the fields), including the server name and Extension ID.
• Here, extension ID should be the stretch ID that was noted earlier.
• Ensure that in the Request body - Schema, all details are filled properly with the same format and alignment.

• At the bottom of the schema body, change the following feature to true and click Execute.
  

   "mobilityOptimizedNetworking": true

 

On the HCX hybridity page, you will see MON option highlighted on the Network Segment.

 

Monitor the progress from the logs and on successful completion API response should be 200.  

tail -f /common/logs/admin/app.log 

 

Additional Information

Once the MON feature is enabled on the segment, you may need to enable MON for individual VMs using the HCX API explorer.