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Enabling new vSphere Kubernetes Service (VKS) Cluster Management for VCF Automation (VCFA)

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As of VMware Cloud Foundation (VCF) 9.0.1, users can now manage the full lifecycle of their vSphere Kubernetes Service (VKS) Clusters, including backup and restore, using the new vSphere Kubernetes Service Cluster Management (VKSM) capability, natively integrated into VCF Automation (VCFA).


This is definitely a must have capability for users managing dozen or even hundreds of VKS Clusters across different versions, VKSM provides the easy button for platform operators!

I figured before going on PTO next week and shutting down my lab, this would be the perfect time to get this deployed in my lab ... what could go wrong, right!? 😅

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Realtek Network Driver for ESXi

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I never thought this day would ever come as I am sure this will come as a complete shock to many, but I am pleased to announce that we have just released a new VMware Fling: Realtek Network Driver for ESXi 😎

Yes, you read that right! 🤯


In fact, I have it running on my Minisforum MS-A2 which has an RTL8125 (2.5GbE), which I can now use! The RTL Driver can be installed on either ESX 8.0 Update 3+ or 9.x+

This Realtek (RTL) PCIe-based driver is NOT an official driver from Realtek, it was developed by one of our VCF Engineers, Wenchao 👏

The driver currently supports the following RTL PCIe Devices:

  • RTL8111 - 1GbE
  • RTL8125 - 2.5GbE
  • RTL8126 - 5GbE
  • RTL8127 - 10GbE

To download the Realtek Network Driver for ESXi offline bundle, head over to the Free Downloads section for Flings on the Broadcom Support Portal (BSP).

UPDATE (11/21/25) - RTL Network Driver for ESXi 1.101.01 is now available and resolves network connection drop that some folks were experiencing. If you have not installed this version, go ahead and download and follow the installation steps below. If you had installed the earlier version of the driver, you can simply upgrade without re-installing, please see the instructions below for more details.

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Quick Tip - Configure Nested ESX Cores per CPU for Optimal Licensing

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If you deploy Nested ESX and wish to use it beyond the default 90 day evaluation, you will need to license the ESX host, just like you would with a physical host.

Whether you create your own Nested ESX VM or simply deploy the the Nested ESX Virtual Appliance, make sure the cores per CPU configuration on the VM is correct or you may need a much larger CPU entitlement than what you had expected.

The default behavior of vSphere when you create a VM is to automatically manage the CPU topology (cores per CPU) when the VM is powered on for optimal GuestOS and Application consumption.


However, this automatic assignment or even a manual assignment could have some unexpected consequences when it comes to ESX licensing ...

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