▪ Frames that belong to the native VLAN are not tagged.
▪ Frames received untagged remain untagged and are placed in the
native VLAN when forwarded.
▪ If there are no ports associated to the native VLAN and no other
trunk links, an untagged frame is dropped.
▪ In Cisco switches, the native VLAN is VLAN 1, by default.