HP Network Direr Software Products Checking Vlan connectivity, Configuring unsupported devices

558CHAPTER 13: VLAN MANAGEMENT

members of at least one VLAN. If this is not the case an error message will be displayed and you will be prevented from proceeding to the next wizard panel.

■If the tagged check box for a particular VLAN is left unchanged, the tagged membership of the selected ports will not be changed with respect to that VLAN. If the check box was previously in the checked and grayed state and is left in this state, those ports that were tagged members of the VLAN before the wizard was launched will still be tagged members afterwards, and those ports that were not tagged members of the VLAN before will still not be tagged members afterwards.

■If the tagged check box for a particular VLAN is checked, but not grayed, when the wizard completes, all of the selected ports that were not tagged members of the VLAN before the wizard was launched will be configured to be tagged members of the VLAN.

■If the tagged check box for a particular VLAN is unchecked when the wizard completes, all the selected ports that were tagged members of the VLAN before the wizard was launched will be removed from the VLAN.

If you add a port to a VLAN, untagged or tagged, and the VLAN does not currently exist on that switch, then 3Com Network Director will create the VLAN on the switch. This means that this wizard is not simply adding ports to a VLAN, it will sometimes have to create a VLAN on a switch as well.

3Com Network Director will never delete a VLAN from a switch completely, even if there are no more ports in a VLAN after the changes selected in the Edit Port VLAN Membership wizard have been applied to the switch.

Checking VLAN connectivity

When you click the Next button in the previous wizard stage, 3Com Network Director will check that there are no gaps in the list of selected switches and ports. This wizard stage works in a similar manner to the corresponding stage in the Create VLAN wizard – see “Checking VLAN connectivity” on page 543 for details.

Configuring unsupported devices

If there are any switches selected that 3Com Network Director cannot automatically configure, the next wizard stage lists these switches. This