Category: NSX

Greenfielding VCF 9.0.0.0 Management Domain Fails with NSX Install Image Error

An hour after celebrating a successful validation in the VCF 9.0 installer and getting ready for real deployment testing (which I made a short LinkedIn post about yesterday), things went sideways. My first deployment attempt of the management domain with just vCenter, SDDC Manager, and NSX, failed when it reached the NSX step, with an… Read More Greenfielding VCF 9.0.0.0 Management Domain Fails with NSX Install Image Error

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When using IPv6 in NSX-T segments – remember to create an IP discovery profile which includes IPv6 address snooping methods

NS Default IP Discovery Profile

NSX will, by default, only discover VMs with IPv4. This is due to the default configuration for IP Discovery, as you can see in the image above. If you have IPv6 VMs, you should consider creating a new segment profile that also includes IPv6: NSX Manager > Networking > Segments > Profiles > Add Segment… Read More When using IPv6 in NSX-T segments – remember to create an IP discovery profile which includes IPv6 address snooping methods

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Fixing expired NSX self-signed certificates after upgrading from NSX-T 3.2.x to NSX 4.x (VCF 5.1)

Expired certs after upgrade to NSX 4.x

After upgrading a VCF 4.5 management domain to 5.1 for a customer, upgrading NSX to v4.1.2.1.0 in the process, we saw that NSX suddenly listed a lot of expired certificates, which wasn’t there before (actually they were, just not showing up and there are no alerts for those in NSX 3.x). Troubleshooting this, I came… Read More Fixing expired NSX self-signed certificates after upgrading from NSX-T 3.2.x to NSX 4.x (VCF 5.1)

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NSX-T Alarm – “Edge VM Present In NSX Inventory Not Present In vCenter”

During an VCF 4.5 upgrade, the vCenter was upgraded to 7U3h (and NSX-T to 3.2.1.2 before that). After the upgrade we saw a strange alert in NSX-T: “Edge VM Present In NSX Inventory Not Present In vCenter“ Following the recommended action, we found the Edge VMs to have the same correct vm-#### and ID as… Read More NSX-T Alarm – “Edge VM Present In NSX Inventory Not Present In vCenter”

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NSX Intelligence Alert – “The memory usage on Intelligence node UUID is above the high threshold value of 88%.”

Throughout the summer I’ve received several high memory threshold alerts for NSX Intelligence in one of my customers environment. The alert was in form of an email from vRNI that got the alert from NSX-T. The memory usage on Intelligence node <uuid> is above the high threshold value of 88% I created a case with… Read More NSX Intelligence Alert – “The memory usage on Intelligence node UUID is above the high threshold value of 88%.”

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