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… 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… Read More »
Today my customer contacted me that they had problems with connectivity between two VMs connected to the same port group based on VXLAN. Quick tests done during call confirmed that there was a problem with VXLAN because they moved VMs to normal vDS port group and virtual machines were reachable. During a quick Webex and… Read More »