Although the title is a bit overdramatic, at first we did think we had some pretty hard issues to tackle before we could even think about migrating. But after systematically working through the list, we solved them all. One of our first steps was to get the current contracts/EPGs out of ACI. Like almost every product nowadays ACI has an API. I did not have rights to the ACI environment, but the customer was able to pull out the requested…
The last few months I have been busy with the migration from an outdated Cisco ACI environment to a brand new VMware NSX-T cluster. In the coming weeks I will make a few blogpost about this migration. But let’s begin with the start. I will briefly explain how Cisco ACI works before I take you on my journey in this transition. [This is a simplification of how ACI works, but for this post it contains enough info. I’m not an…
We had an issue with a customer were sometimes after a vMotion some of the traffic was dropped from the VM for a short period of time (aprox. 5 minutes). After that short period everything was working as expected. (NSX-T 3.2.0.1). When we looked in loginsight we could see that traffic was dropped based on a rule that had a higher number as the allow rule. So we had some strong indication that this had something to do with firewall…
After a migration via the migration coordinator from NSX-V (6.4) to NSX-T(3.2) we ran into a couple of issues. The one i will talk about today is a random appearing QoS policy that does not seem to be active but is enabled on the VMs. I spoke a colleague who also had seen this issue after an upgrade from NSX-T so maybe it’s more widespread as it seems. Note; With a recent migration on version 3.2.0.1 we dit not see…