There is various enhancement done in NSX-T version 3.0 by VMware.  Let's talk about architecture change in NSX-T version 3.0 Some of the below changes were made concerning the internal communication mechanism within the NSX-T components.  T hey are: Architecture ramp-up: NSX Manager and its cluster communicate with their transport nodes through APH Server ( Appliance Proxy Hub ) NSX Manager communicates with NSX-Proxy through port 1234. CCP (Central control plane) communicates with NSX-Proxy through port 1235 . RabbitMQ messaging is replaced with NSX-RPC between the management plane and CCP.     Add caption   Alarm and Events   In NSX-T version 3.0, there is an introduction of Alerts and Events which help in the active monitoring of different components of the environment.   Network Topology UI   In NSX-T 3.0 there is a view of the network topology which gives a diagram of each component of NSX-T.  This view gives about numbers of VM connected to segments, numbers of segments, T1,

  Some time back I had an issue where my NSX-T lab e nvironment was showing unstable status. My environment consists of 3 NSX-T manager nodes aligned with the VIP IP address.  The issue where I was unable to access my NSX-T console through VIP IP address nor with my other NSX-T nodes. It's quite intermittent I was able to access console UI from one of the manager node using admin account. However, unable to login to the manager's node using SSH with admin or root account. As I said its quite intermitted where I managed to access the manager UI console.  In the below Figure:1, it states that 1-2 manager nodes were showing unavailable. Figure:1 On validating the "VIEW DETAILS" it clearly shows that /var/log partition was 100% full. Figure:2 Now the main objective is to either compress or delete the old logs from /var/log partition to bring back the manager's node's.  To accomplish this I booted the NSX-T node VM sequentially, mounting the Ubuntu image using resc