Discovery Using Network Views

When the network views are configured with their associated discovery settings and scan interface, NetMRI automatically starts discovery across the connected network. After a few moments, newly discovered devices will begin to appear in the main Discovery pages under Network Explorer > Discovery. Click device group names on the right-hand panel to see categories of devices discovered by NetMRI.

If NetMRI identifies a device inside any network view as using Cisco IOS, NXOS, or Juniper JunOS, it attempts to collect possible VRF configuration data on the device by using the device's CLI. If the CLI is not accessible, (or the device does not have VRF configurations), NetMRI treats the device as not configured for VRF. Full detection of VRF configurations on VRF-aware devices requires CLI credentials, including Enable password access. After discovery, you map VRFs to network views associated with virtual scan interfaces and discovery settings, to allow ARP and routing data collected inside the network view to be leveraged for further discovery.

After NetMRI discovers VRF-based virtual networks in your deployment, a System Health banner alert appears at the top of the screen. Click its link to view details about the alert, which appears in the Settings icon > Notifications > System Health page. For more information, see Managing and Tracking System Health.