Cisco switches will allow you to add a Vlan to one or more interfaces, even if the Vlan does not exist on the device. MAC addresses will then appear in the MAC database as expected, but traffic will not flow.
Cisco switches will allow you to add a Vlan to one or more interfaces, even if the Vlan does not exist on the device. MAC addresses will then appear in the MAC database as expected, but traffic will not flow.