From the WhatsUp Gold console, in the Map View, you can use Link lines to get a graphical view of the network link (the Interface service) between two devices. Link lines can also show the status of any service which has an Active Monitor on the device.
The following example shows a map with link lines displayed.
There are three ways to set up the connecting link lines:
Note: The Interface service must be included in the scan.
When you use one of the automatic discover options, particularly
when discovering interfaces on a router or switch, you need to
enter the SNMP community string in the appropriate scan dialog.
This lets the scan identify all the interfaces on the device.
If scanning a specific device (from the Device Properties > Active Monitors dialog), with the device selected, right-click Properties, then select Credentials. In the SNMP v1/v2/v3 credentials box, select the Public Read Community. Click Active Monitors, then click Discover.
When creating links manually, you are always
creating a connected link. If there was an unconnected link for the
service, it will be replaced by the connected link.
Both connect and disconnect skips the dialog if there is only one active monitor on the device because it assumes you meant that monitor.
In the graphic above, there are two link lines connected by a dot in the center of the line between the two devices. This shows that the devices are linked both directions. This is done by repeating the process above from the second device, back to the first. Now, when one of the links goes down, you can see on which side the problem occurs.