You can discover existing applications based on tags, ServiceNow, names, flows, and advanced properties, and add them into vRealize Network Insight.

Procedure

  1. To discover existing applications in your environment:
      1. From the left navigation panel, go to Applications > All Applications.
      2. Click the Discover button on the top-right corner of the page.
    • Or, from the left navigation panel, go to Applications > Discover.
  2. You can discover applications in multiple ways. Select the preferred tab and perform the related steps.
    Tab Description
    Tags

    Use tag based application discovery if you have added tags for virtual machines in your VMware vCenter, Azure, AWS, or VMware NSX-T environments.

    To learn more, see Discover Applications using Flows.
    ServiceNow

    Use ServiceNow based application discovery if you have mapped your applications in ServiceNow.

    To learn more, see Discover Applications using ServiceNow.
    Flows

    Use flow based application discovery if you want to discover applications by analyzing the traffic patterns and network flows in your environment.

    Flow based application discovery is automated and does not require any user input to start the discovery.

    To learn more, see Discover Applications using Flows.
    Names

    Use name based application discovery if your VMs and Kubernetes services follow a logical naming pattern.

    To leran more, see Discover Applications using Names.
    Advanced

    Use advanced application discovery if you want to discover applications using a combination of VM names, NSX-V security tags, security groups, tags from VMware vCenter, Azure, AWS, or VMware NSX-T environments.

    To learn more, see Discover Applications using Advanced Properties.
    Note: The following limitations apply when discovering applications in vRealize Network Insight:
    Objects Maximum limit Impact if the limit exceeds
    Applications on the map view

    1000

    		 Applications are not displayed on the map view.
    Applications on the tabular view

    3000

    		 Only 3000 applications are displayed on the table view.
    Saved applications

    10k

    		 You cannot add a new application.
    Total tiers across applications

    30k

    		 You cannot add a new tier.
    Tiers per application

    150

    		 You cannot add a new tier.
    Members per tier

    5k

    		 You cannot add a new tier. You can only update the existing applications to reduce tiers and members.
    Members per application

    5k

    The application page does not show any useful information such as microsegmentation, metrics, and analytics.

    To gain complete visibility of the application, you must reduce the application members.

    Also, vRealize Network Insight raises the following alert:Application Membership limit exceeded.
    Flows per application

    500k

    The application topology does not load on the respective application page.