Manually preparing ESXi hosts for VMware NSX

Usually when installing VMware NSX, the Update Manager takes care of ESXi host preparation. It takes a few VIB packages from the NSX Manager and pushes those to the ESXi hosts to prepare them for VXLAN, the distributed firewall and the distributed router.

It can happen that this process fail, for one reason or another. For instance, if your Update Manager is on the fritz or if you don't have an Update Manager (haven't tested this, but would imagine that that would be an issue). In those cases, whatever you do, you won't be able to properly prepare your … Read more

Changing ESXi 5.1 Service Console VLAN ID via PowerCLI

Today I had the need to remove the VLAN ID from 60 ESXi 5.1 hosts. Instead of doing it 60 times manually through the KVM, PowerCLI was enlisted for the job. That wasn't the hard part, the one-liner is quite simple..For those interested:

Get-VMHost | Get-VirtualPortGroup -Name "Management Network" | Set-VirtualPortGroup -Name "Management Network" -VLanID 0

As mentioned, this wasn't the hard part. It appears that vSphere 5.1 has a (pretty cool!) new feature that checks whether a network change has an impact on the connectivity of the ESXi host (like changing the service console VLAN ID or IP address) … Read more

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