Stacking operation with multiple VLANs configured

Stacking uses the primary VLAN in a switch. In the factory-default configuration, the DEFAULT_VLAN is the primary VLAN. However, you can designate any VLAN configured in the switch as the primary VLAN. (See The primary VLAN.)

When using stacking in a multiple-VLAN environment, the following criteria applies:

  • Stacking uses only the primary VLAN on each switch in a stack.

  • The primary VLAN can be tagged or untagged as needed in the stacking path from switch to switch.

  • The same VLAN ID (VID) must be assigned to the primary VLAN in each stacked switch.