What happens to switch ports after the VLAN to which they are assigned is deleted?

When a VLAN to which switch ports are assigned is deleted, the following happens:

1. The switch ports that were assigned to the deleted VLAN become inactive. They no longer pass traffic for the deleted VLAN.

2. The switch ports return to their default VLAN configuration, which is typically VLAN 1 in most switches.

3. The switch ports are still operational, but they are not part of any VLAN until they are reassigned to a new VLAN.

4. Any settings or configurations that were specific to the deleted VLAN are also deleted. This includes things like VLAN name, VLAN ID, and any VLAN-specific settings.

5. If the switch ports were part of a trunk link, they will stop passing traffic for the deleted VLAN. However, they will continue to pass traffic for any other VLANs that are still active on the trunk link.

6. If the switch ports were configured with a Voice VLAN, this configuration will also be deleted when the VLAN is deleted.

In summary, when a VLAN is deleted, the switch ports that were assigned to it become inactive and return to their default configuration until they are reassigned to a new VLAN.