User's Manual

Components 529
VLANs tab for switches with only one factory-default VLAN
configured
If a switch has only one configured VLAN and all ports are untagged
members of this VLAN, then this is considered to be a factory-default
switch and a VLAN-unaware device i.e. the user has not explicitly
configured any VLANs on this switch. The VLANs tab on the Properties
dialog box for this type of switch differs from the previous case where the
switch had VLANs explicitly configured:
Figure 277 Switch with Only One Configured VLAN
The top section is similar to the VLANs tab for a VLAN-aware switch in
that it shows the VLANs configured on the switch – in this case only one.
The combo box in the bottom section lists those VLANs that 3Com
Network Director has inferred that this switch is a member of. See “
VLAN
membership inference” on page 509. The text below the combo box is
context-sensitive and updates when a VLAN is selected from the
combo-box. It displays the nearest VLAN-aware switches that have the
selected VLAN configured.