Recently I have had a task to reorganize NSX Cross vCenter domains - Primary and Secondary environments. My customer had eight vCenter with NSX - four pairs of Primary and Secondary. As you probably know or you can check on VMware page, benefits of Cross-vCenter NSX: Increased span of NSX logical networks. The same logical networks are available… Read More »
Recently I needed to prepare a procedure to reconfigure NSX environments and one of the tasks was changing NSX Logical Switch VNI (VXLAN Network Identifier). When you create a new Logical Switch, NSX takes VNI from a special pool (The Segment ID Pool - in the range 5000-16777216 so more than 16000000 networks are possible but in practice… Read More »
Some weeks ago my customer wanted to change ESXi hostnames. This is not difficult and can be done without VM downtime using the below steps: Place ESXi host into maintenance mode Remove the host from cluster/vCenter inventory Change a record in DNS (or vCenter hosts file) Add the ESXi host again to the vCenter inventory using a new… Read More »
