As a VI admin you can view NSX generated alarms in vCenter Server.

Note: The NSX Alarms forwarding functionality is supported starting with vSphere version 8.0 onwards.
After you install and configure NSX from the NSX page in vCenter Server environment, NSX automatically registers its alarm definitions with vCenter Server. Any NSX alarms generated are forwarded and displayed on the vSphere Web Client UI. Alarm forwarding is only applicable with NSX deployments in vCenter Server environment.

View NSX Alarms on vSphere Web Client UI at:
  • Monitor page → Issues and Alarms → Triggered Alarms

  • Alarms section

To identify a NSX alarm, go to the Triggered Alarms page and check the user field that triggered the alarm. The user com.vmware.nsx.management.nsxt identifies that the event was generated by NSX.

Note: If there are multiple alarms generated for a certain NSX event, in vSphere Web Client a summary event is displayed. The summary event takes you to NSX Alarms UI page where all alarms of the same type are displayed. For example, if NSX generates five alarms related to certificate expiry, the Alarms tab in vSphere Web Client displays only a single summary event for all the five certificate expiry alarms.
Caution: Do not delete any NSX alarms from vCenter Server or reset any alarms (alarm turns to green indicating it is resolved) . If you delete an Alarm Definition in vCenter Server, any alarm generated for that event may not be forwarded to vCenter Server.

If one of the NSX Manager goes down, another NSX Manager in the cluster takes over as the active manager. vCenter Server synchronizes existing alarm definitions and triggered alarms with the current state of alarms on the new NSX Manager.