Layer 3 connectivity

Use the Layer 3 connectivity option to display discovered Layer 3 connections, such as between routers and other network devices. Switches are not normally displayed.

The connections between devices are displayed as follows:

  • Connections between two layer 3 interfaces are shown.
  • Connections between a layer 3 and a layer 2 interface are shown as being between the layer 3 interface and the subnet to which the layer 2 interface belongs.
  • Connections between two layer 2 interfaces are not shown.
Note: Switches with routing capabilities are displayed if they have active connections involving layer 3 interfaces.