Use the Layer 2 view of the Device List window to view information about your switches and what's connected to them. With the Layer 2 view, you can answer questions like:
InterMapper periodically scans all the switches on maps where Layer 2 is enabled (see the Layer 2 Features pane of the Map Settings window). It collects information regarding which devices are attached to which ports, what other switches are present, and places the resulting information into the Endpoints pane.
InterMapper Layer 2 uses device MAC addresses to identify devices. It looks through the forwarding databases of the switches to identify the ports where devices connect. The Layer 2 process also looks through ARP tables and other sources of data to map the MAC addresses to IP addresses, to collect DNS names, VLANs, and other information, locating each device as precisely as it can.
When Layer 2 passes the connection information back to the map, automatically showing the connection of each device on the map to the proper port on the switch.
In order to use InterMapper's Layer 2 features, you must:
To use the Layer 2 connection information to make connections on the map automatically, select Automatically change this map to show Layer 2 connections in the Layer 2 Features pane of the Map Settings window.
Note: The Layer 2 View is disabled when:
Layer 2 information is shown in a "sub-view" of the global Device List Window, available from the Window menu.
To open the Layer 2 view:
Alternatively, you can: