Components 531

VLANs tab for devices for which there is no VLAN information available

If 3Com Network Director has been unable to read any VLAN information from a device and has been unable to infer any VLAN information about a device, then the following message is displayed in the VLANs tab on the Properties dialog box:

Figure 279 VLANs Tab

This may occur if:

The device is a traditional router and does not use VLANs. 3Com Network Director will not attempt to infer any VLAN membership of such a device.

There are in fact no VLANs explicitly configured on the network at all.

The only VLANs on the network are configured on non-3Com switches. 3Com Network Director does not read VLAN information from non-3Com switches.