While building an Orion map in the NPM web console you notice that two of your devices do not show a connection between them. You verify the two…

To show the connection between two devices on an Orion map, you need to meet the following

requirements1:

The devices must be monitored by NPM.

The devices must support topology and be interconnected.

The devices must have the corresponding interfaces monitored and identified as full or half duplex.

The Orion Maps feature must be enabled and configured.

If you do not see the connection between two devices on an Orion map, you should first verify that

you are monitoring Layer 2 and 3 topologies for the devices. You can do this by checking the NPM

Network Topology widget on the device details page. This widget will reflect what connections will

be automatically drawn in Orion Maps2. If the widget does not show the expected connection, you

may need to enable topology polling for the devices or check the SNMP credentials and

configuration3.

If you are monitoring the correct topologies and still do not see the connection, you can build a

custom connection between the devices using the Orion Maps feature. In the Map Editor, you can

add the two devices to the canvas, select them, and click the Connect Objects button. Here you can

specify the interface on either side and choose to add the manual connection to the database2.

Building a new Orion map and adding the related entities instead of the nodes will not resolve the

issue, as the related entities are based on the same topology data as the nodes. Changing the

monitoring method from SNMP to CLI will not resolve the issue, as CLI is not supported for topology

polling3.

Reference: Orion Maps; Orion Map Devices not connect - Forum; Polling methods used by Orion.